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* Re: ath10k: Fix soft lockup during firmware crash/hw-restart
From: Ben Greear @ 2016-11-30  0:43 UTC (permalink / raw)
  To: Mohammed Shafi Shajakhan, ath10k; +Cc: mohammed, linux-wireless
In-Reply-To: <1480430762-15995-1-git-send-email-mohammed@qca.qualcomm.com>

I have not seen this hang since adding this patch, so
hopefully it has resolved the problem.

Thanks,
Ben

On 11/29/2016 06:46 AM, Mohammed Shafi Shajakhan wrote:
> From: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com>
>
> During firmware crash (or) user requested manual restart
> the system gets into a soft lock up state because of the
> below root cause.
>
> During user requested hardware restart / firmware crash
> the system goes into a soft lockup state as 'napi_synchronize'
> is called after 'napi_disable' (which sets 'NAPI_STATE_SCHED'
> bit) and it sleeps into infinite loop as it waits for
> 'NAPI_STATE_SCHED' to be cleared. This condition is hit because
> 'ath10k_hif_stop' is called twice as below (resulting in calling
> 'napi_synchronize' after 'napi_disable')
>
> 'ath10k_core_restart' -> 'ath10k_hif_stop' (ATH10K_STATE_ON) ->
> -> 'ieee80211_restart_hw' -> 'ath10k_start' -> 'ath10k_halt' ->
> 'ath10k_core_stop' -> 'ath10k_hif_stop' (ATH10K_STATE_RESTARTING)
>
> Fix this by calling 'ath10k_halt' in ath10k_core_restart itself
> as it makes more sense before informing mac80211 to restart h/w
> Also remove 'ath10k_halt' in ath10k_start for the state of 'restarting'
>
> Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com>
> ---
> [thanks to Kalle and Michal for their inputs]
>
>  drivers/net/wireless/ath/ath10k/core.c | 2 +-
>  drivers/net/wireless/ath/ath10k/mac.c  | 1 -
>  2 files changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
> index 7005e2a..5bc6847 100644
> --- a/drivers/net/wireless/ath/ath10k/core.c
> +++ b/drivers/net/wireless/ath/ath10k/core.c
> @@ -1536,7 +1536,7 @@ static void ath10k_core_restart(struct work_struct *work)
>  	switch (ar->state) {
>  	case ATH10K_STATE_ON:
>  		ar->state = ATH10K_STATE_RESTARTING;
> -		ath10k_hif_stop(ar);
> +		ath10k_halt(ar);
>  		ath10k_scan_finish(ar);
>  		ieee80211_restart_hw(ar->hw);
>  		break;
> diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
> index 717b2fa..481842b 100644
> --- a/drivers/net/wireless/ath/ath10k/mac.c
> +++ b/drivers/net/wireless/ath/ath10k/mac.c
> @@ -4449,7 +4449,6 @@ static int ath10k_start(struct ieee80211_hw *hw)
>  		ar->state = ATH10K_STATE_ON;
>  		break;
>  	case ATH10K_STATE_RESTARTING:
> -		ath10k_halt(ar);
>  		ar->state = ATH10K_STATE_RESTARTED;
>  		break;
>  	case ATH10K_STATE_ON:
>


-- 
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc  http://www.candelatech.com

^ permalink raw reply

* [PATCH] mac80211: Suppress NEW_PEER_CANDIDATE event if no room
From: Masashi Honma @ 2016-11-30  0:06 UTC (permalink / raw)
  To: johannes; +Cc: linux-wireless, me, Masashi Honma

Previously, kernel sends NEW_PEER_CANDIDATE event to user land even if
the found peer does not have any room to accept other peer. This causes
continuous connection trials.

Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
---
 net/mac80211/mesh_plink.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c
index 7fcdcf6..fcba70e5 100644
--- a/net/mac80211/mesh_plink.c
+++ b/net/mac80211/mesh_plink.c
@@ -505,12 +505,14 @@ mesh_sta_info_alloc(struct ieee80211_sub_if_data *sdata, u8 *addr,
 
 	/* Userspace handles station allocation */
 	if (sdata->u.mesh.user_mpm ||
-	    sdata->u.mesh.security & IEEE80211_MESH_SEC_AUTHED)
-		cfg80211_notify_new_peer_candidate(sdata->dev, addr,
-						   elems->ie_start,
-						   elems->total_len,
-						   GFP_KERNEL);
-	else
+	    sdata->u.mesh.security & IEEE80211_MESH_SEC_AUTHED) {
+		if (mesh_peer_accepts_plinks(elems) &&
+		    mesh_plink_availables(sdata))
+			cfg80211_notify_new_peer_candidate(sdata->dev, addr,
+							   elems->ie_start,
+							   elems->total_len,
+							   GFP_KERNEL);
+	} else
 		sta = __mesh_sta_info_alloc(sdata, addr);
 
 	return sta;
-- 
2.7.4

^ permalink raw reply related

* [PATCH 1/1] rtl8xxxu: Work around issue with 8192eu and 8723bu devices not reconnecting
From: Jes.Sorensen @ 2016-11-29 23:59 UTC (permalink / raw)
  To: linux-wireless; +Cc: kvalo, briselec
In-Reply-To: <20161129235902.11882-1-Jes.Sorensen@redhat.com>

From: Jes Sorensen <Jes.Sorensen@redhat.com>

The H2C MEDIA_STATUS_RPT command for some reason causes 8192eu and
8723bu devices not being able to reconnect.

Reported-by: Barry Day <briselec@gmail.com>
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
---
 drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
index a9137ab..3a86675 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
@@ -4372,6 +4372,13 @@ void rtl8xxxu_gen1_report_connect(struct rtl8xxxu_priv *priv,
 void rtl8xxxu_gen2_report_connect(struct rtl8xxxu_priv *priv,
 				  u8 macid, bool connect)
 {
+#ifdef RTL8XXXU_GEN2_REPORT_CONNECT
+	/*
+	 * Barry Day reports this causes issues with 8192eu and 8723bu
+	 * devices reconnecting. The reason for this is unclear, but
+	 * until it is better understood, leave the code in place but
+	 * disabled, so it is not lost.
+	 */
 	struct h2c_cmd h2c;
 
 	memset(&h2c, 0, sizeof(struct h2c_cmd));
@@ -4383,6 +4390,7 @@ void rtl8xxxu_gen2_report_connect(struct rtl8xxxu_priv *priv,
 		h2c.media_status_rpt.parm &= ~BIT(0);
 
 	rtl8xxxu_gen2_h2c_cmd(priv, &h2c, sizeof(h2c.media_status_rpt));
+#endif
 }
 
 void rtl8xxxu_gen1_init_aggregation(struct rtl8xxxu_priv *priv)
-- 
2.7.4

^ permalink raw reply related

* [PATCH 0/1] rtl8xxxu: Workaround for 8192eu/8723bu not reconnecting
From: Jes.Sorensen @ 2016-11-29 23:59 UTC (permalink / raw)
  To: linux-wireless; +Cc: kvalo, briselec

From: Jes Sorensen <Jes.Sorensen@redhat.com>

Hi,

This patch works around the issue with 8192eu and 8723bu devices not
being able to reconnect. It is still not clear why this fails, and
looking at rtlwifi it does issue the command for 8192ee and 8723be
devices.

Until we have a better idea of what is going on, I have commented out
the offending code. I prefer not deleting it until we have a better
understanding of why this is causing issues.

Credits to Barry Day for tracking down and isolating the issue.

Kalle, not sure if this can make it to 4.9, but if it's possible it
would be ideal since this is causing real issues in the field.

Cheers,
Jes


Jes Sorensen (1):
  rtl8xxxu: Work around issue with 8192eu and 8723bu devices not
    reconnecting

 drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 8 ++++++++
 1 file changed, 8 insertions(+)

-- 
2.7.4

^ permalink raw reply

* ath10k: wmi-alloc-chunk should use DMA_BIDIRECTIONAL.
From: greearb @ 2016-11-29 22:00 UTC (permalink / raw)
  To: ath10k; +Cc: linux-wireless, Ben Greear

From: Ben Greear <greearb@candelatech.com>

These memory chunks are often used as 'swap' by the NIC,
so it will be both reading and writing to these areas.

This seems to fix errors like this on my x86-64 machine:

kernel: DMAR: DMAR:[DMA Write] Request device [05:00.0] fault addr ff5de000
        DMAR:[fault reason 05] PTE Write access is not set

Tested-by: Marek Behun <kabel@blackhole.sk>
Signed-off-by: Ben Greear <greearb@candelatech.com>

diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index 9fcb249..c68278a 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -4558,7 +4558,7 @@ static int ath10k_wmi_alloc_chunk(struct ath10k *ar, u32 req_id,
 	if (!num_units)
 		return -ENOMEM;
 
-	paddr = dma_map_single(ar->dev, vaddr, pool_size, DMA_TO_DEVICE);
+	paddr = dma_map_single(ar->dev, vaddr, pool_size, DMA_BIDIRECTIONAL);
 	if (dma_mapping_error(ar->dev, paddr)) {
 		kfree(vaddr);
 		return -ENOMEM;

^ permalink raw reply related

* ath10k firmware crashes in mesh mode on QCA9880
From: Benjamin Morgan @ 2016-11-29 19:22 UTC (permalink / raw)
  To: linux-wireless, ath10k, lede-dev; +Cc: agreen

When we try to transmit traffic (ping) between two meshed ath10k devices 
running latest lede we keep experiencing ath10k firmware crashes. This 
seems to only happen when running in 802.11n/ac mode but not in 
802.11a/g mode. Also, from the station dumps it appears that management 
traffic is flowing between the devices, however when we try to send 
unicast data traffic the firmware crashes immediately.

Platform: Archer C7 AC1750 v2
Software Image: LEDE (HEAD, r2299) Commit: 
https://github.com/lede-project/source/commit/d596c21ebd5a3e6ce933eff3e51989031e4b1d58

Crypto: wpa_supplicant
wpa_supplicant-wlan0.conf
network={
ssid="bmorgan_lede_mesh"
key_mgmt=SAE
mode=5
frequency=5180
psk="meshpassword"
}

Backports Verstion:
[    9.818007] Loading modules backported from Linux version 
wt-2016-10-03-1-g6fcb1a6
[    9.825736] Backport generated by backports.git 
backports-20160324-9-g0e38f5c

​​Ath10k Initialization on Station A (dmesg)
[    9.896715] PCI: Enabling device 0000:01:00.0 (0000 -> 0002)
[    9.902622] ath10k_pci 0000:01:00.0: pci irq legacy oper_irq_mode 1 
irq_mode 0 reset_mode 0
[   10.123734] ath10k_pci 0000:01:00.0: Direct firmware load for 
ath10k/pre-cal-pci-0000:01:00.0.bin failed with error -2
[   10.134620] ath10k_pci 0000:01:00.0: Falling back to user helper
[   10.287680] firmware ath10k!pre-cal-pci-0000:01:00.0.bin: 
firmware_loading_store: map pages failed
[   10.622789] ath10k_pci 0000:01:00.0: qca988x hw2.0 target 0x4100016c 
chip_id 0x043202ff sub 0000:0000
[   10.632184] ath10k_pci 0000:01:00.0: kconfig debug 0 debugfs 1 
tracing 0 dfs 1 testmode 1
[   10.645231] ath10k_pci 0000:01:00.0: firmware ver 10.2.4.70.54 api 5 
features no-p2p,raw-mode,mfp crc32 9d340dd9
[   10.655660] ath10k_pci 0000:01:00.0: Direct firmware load for 
ath10k/QCA988X/hw2.0/board-2.bin failed with error -2
[   10.666264] ath10k_pci 0000:01:00.0: Falling back to user helper
[   10.747925] firmware ath10k!QCA988X!hw2.0!board-2.bin: 
firmware_loading_store: map pages failed
[   11.011123] ath10k_pci 0000:01:00.0: board_file api 1 bmi_id N/A 
crc32 bebc7c08
[   12.155224] ath10k_pci 0000:01:00.0: htt-ver 2.1 wmi-op 5 htt-op 2 
cal file max-sta 128 raw 0 hwcrypto 1

Station A (wlan0):
18:A6:F7:23:6E:66
10.230.5.41

Station B (wlan0):
18:a6:f7:26:0f:21
10.230.5.42

Station Dump on Station A before ping:
Station 18:a6:f7:26:0f:21 (on wlan0)
inactive time:340 ms
rx bytes:2472
rx packets:28
tx bytes:1204
tx packets:9
tx retries:0
tx failed:0
rx drop misc:1
signal: -14 dBm
signal avg:-14 dBm
Toffset:18142530 us
tx bitrate:6.0 MBit/s
rx bitrate:6.0 MBit/s
rx duration:1524 us
mesh llid:0
mesh plid:0
mesh plink:ESTAB
mesh local PS mode:ACTIVE
mesh peer PS mode:UNKNOWN
mesh non-peer PS mode:ACTIVE
authorized:yes
authenticated:yes
associated:yes
preamble:long
WMM/WME:yes
MFP:yes
TDLS peer:no
DTIM period:2
beacon interval:1000
connected time:10 seconds

​Crash Log on Station B (10.230.5.42)
[245.483888] ath10k_pci 0000:01:00.0: firmware crashed! (uuid 
2bab5ee9-08ff-4a17-95b1-636d212acebc)
[245.493020] ath10k_pci 0000:01:00.0: qca988x hw2.0 target 0x4100016c 
chip_id 0x043202ff sub 0000:0000
[245.502384] ath10k_pci 0000:01:00.0: kconfig debug 0 debugfs 1 tracing 
0 dfs 1 testmode 1
[245.515436] ath10k_pci 0000:01:00.0: firmware ver 10.2.4.70.54 api 5 
features no-p2p,raw-mode,mfp crc32 9d340dd9
[245.525812] ath10k_pci 0000:01:00.0: board_file api 1 bmi_id N/A crc32 
bebc7c08
[245.533232] ath10k_pci 0000:01:00.0: htt-ver 2.1 wmi-op 5 htt-op 2 cal 
file max-sta 128 raw 0 hwcrypto 1
[245.544876] ath10k_pci 0000:01:00.0: firmware register dump:
[245.550633] ath10k_pci 0000:01:00.0: [00]: 0x4100016C 0x000015B3 
0x009A4577 0x00955B31
[245.558676] ath10k_pci 0000:01:00.0: [04]: 0x009A4577 0x00060130 
0x00000002 0x00439E98
[245.566715] ath10k_pci 0000:01:00.0: [08]: 0x0044110C 0x00442074 
0x00407120 0x004436CC
[245.574749] ath10k_pci 0000:01:00.0: [12]: 0x00000009 0x00000000 
0x009A3518 0x009A3526
[245.582793] ath10k_pci 0000:01:00.0: [16]: 0x00958080 0x0094085D 
0x00000000 0x00000000
[245.590836] ath10k_pci 0000:01:00.0: [20]: 0x409A4577 0x0040AAC4 
0x0040AC60 0x0040AC09
[245.598882] ath10k_pci 0000:01:00.0: [24]: 0x809A44BA 0x0040AB24 
0x00400000 0xC09A4577
[245.606923] ath10k_pci 0000:01:00.0: [28]: 0x809A39DE 0x0040AB84 
0x0044110C 0x00442074
[245.614955] ath10k_pci 0000:01:00.0: [32]: 0x809A5FE2 0x0040ABB4 
0x0044110C 0x00407120
[245.623000] ath10k_pci 0000:01:00.0: [36]: 0x809A2E6C 0x0040ABF4 
0x0040AC14 0x00001580
[245.631043] ath10k_pci 0000:01:00.0: [40]: 0x80990F6F 0x0040AD04 
0x009C643C 0x004436CC
[245.639086] ath10k_pci 0000:01:00.0: [44]: 0x80998510 0x0040AD64 
0x004208FC 0x00439E4C
[245.647129] ath10k_pci 0000:01:00.0: [48]: 0x8099AE95 0x0040AD84 
0x004208FC 0x00425404
[245.655170] ath10k_pci 0000:01:00.0: [52]: 0x809BFC55 0x0040AEE4 
0x00424FE8 0x00000002
[245.663198] ath10k_pci 0000:01:00.0: [56]: 0x80940F18 0x0040AF14 
0x00000004 0x004039D0
[245.767023] ieee80211 phy0: Hardware restart was requested
[245.772655] ath10k_pci 0000:01:00.0: failed to synchronize monitor vdev 
1 stop: -143
[245.780542] ath10k_pci 0000:01:00.0: failed to stop monitor vdev: -143
​
With wpa_supplicant turned off:

Station Dump on Station A before ping:
Station 18:a6:f7:26:0f:21 (on wlan0)
inactive time:60 ms
rx bytes:3874
rx packets:67
tx bytes:707
tx packets:7
tx retries:0
tx failed:1
rx drop misc:3
signal: -14 dBm
signal avg:-14 dBm
Toffset:18446744073684250999 us
tx bitrate:6.0 MBit/s
rx bitrate:6.0 MBit/s
rx duration:1312 us
mesh llid:24953
mesh plid:59412
mesh plink:ESTAB
mesh local PS mode:ACTIVE
mesh peer PS mode:UNKNOWN
mesh non-peer PS mode:ACTIVE
authorized:yes
authenticated:yes
associated:yes
preamble:long
WMM/WME:yes
MFP:no
TDLS peer:no
DTIM period:2
beacon interval:1000
short slot time:yes
connected time:33 seconds

Firmware crash on Station A (10.230.5.41)
[ 1040.984599] ath10k_pci 0000:01:00.0: firmware crashed! (uuid 
42d4f6dc-0e89-4505-aefb-58cbb70d0dce)
[ 1040.993732] ath10k_pci 0000:01:00.0: qca988x hw2.0 target 0x4100016c 
chip_id 0x043202ff sub 0000:0000
[ 1041.003100] ath10k_pci 0000:01:00.0: kconfig debug 0 debugfs 1 
tracing 0 dfs 1 testmode 1
[ 1041.016144] ath10k_pci 0000:01:00.0: firmware ver 10.2.4.70.54 api 5 
features no-p2p,raw-mode,mfp crc32 9d340dd9
[ 1041.026523] ath10k_pci 0000:01:00.0: board_file api 1 bmi_id N/A 
crc32 bebc7c08
[ 1041.033940] ath10k_pci 0000:01:00.0: htt-ver 2.1 wmi-op 5 htt-op 2 
cal file max-sta 128 raw 0 hwcrypto 1
[ 1041.045593] ath10k_pci 0000:01:00.0: firmware register dump:
[ 1041.051336] ath10k_pci 0000:01:00.0: [00]: 0x4100016C 0x000015B3 
0x009A4577 0x00955B31
[ 1041.059383] ath10k_pci 0000:01:00.0: [04]: 0x009A4577 0x00060130 
0x00000001 0x00435354
[ 1041.067424] ath10k_pci 0000:01:00.0: [08]: 0x0044110C 0x00442074 
0x00407120 0x004436CC
[ 1041.075463] ath10k_pci 0000:01:00.0: [12]: 0x00000009 0x00000000 
0x009A43A0 0x009A43DE
[ 1041.083490] ath10k_pci 0000:01:00.0: [16]: 0x00958080 0x0094085D 
0x00000000 0x00000000
[ 1041.091535] ath10k_pci 0000:01:00.0: [20]: 0x409A4577 0x0040AAC4 
0x0040AC60 0x0040AC09
[ 1041.099579] ath10k_pci 0000:01:00.0: [24]: 0x809A44BA 0x0040AB24 
0x00955A00 0xC09A4577
[ 1041.107622] ath10k_pci 0000:01:00.0: [28]: 0x809A39DE 0x0040AB84 
0x0044110C 0x00442074
[ 1041.115661] ath10k_pci 0000:01:00.0: [32]: 0x809A5FE2 0x0040ABB4 
0x0044110C 0x00407120
[ 1041.123689] ath10k_pci 0000:01:00.0: [36]: 0x809A2E6C 0x0040ABF4 
0x0040AC10 0x00001580
[ 1041.131733] ath10k_pci 0000:01:00.0: [40]: 0x80990F6F 0x0040AD04 
0x009C643C 0x004436CC
[ 1041.139777] ath10k_pci 0000:01:00.0: [44]: 0x80998510 0x0040AD64 
0x004208FC 0x00439E4C
[ 1041.147820] ath10k_pci 0000:01:00.0: [48]: 0x8099AE95 0x0040AD84 
0x004208FC 0x00425758
[ 1041.155860] ath10k_pci 0000:01:00.0: [52]: 0x809BFC55 0x0040AEE4 
0x00424FE8 0x00000002
[ 1041.163888] ath10k_pci 0000:01:00.0: [56]: 0x80940F18 0x0040AF14 
0x00000004 0x004039D0
[ 1041.267025] ieee80211 phy0: Hardware restart was requested
[ 1041.272656] ath10k_pci 0000:01:00.0: failed to synchronize monitor 
vdev 1 stop: -143
[ 1041.280545] ath10k_pci 0000:01:00.0: failed to stop monitor vdev: -143

​
Thanks in advance for your time and help,

~Benjamin

^ permalink raw reply

* Re: ath10k: Fix soft lockup during firmware crash/hw-restart
From: Ben Greear @ 2016-11-29 18:16 UTC (permalink / raw)
  To: Mohammed Shafi Shajakhan, ath10k; +Cc: mohammed, linux-wireless
In-Reply-To: <1480430762-15995-1-git-send-email-mohammed@qca.qualcomm.com>

Is this something for stable?  And if so, how far back should it be applied?

I'll add this patch to my 4.9 tree and test it...

Thanks,
Ben

On 11/29/2016 06:46 AM, Mohammed Shafi Shajakhan wrote:
> From: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com>
>
> During firmware crash (or) user requested manual restart
> the system gets into a soft lock up state because of the
> below root cause.
>
> During user requested hardware restart / firmware crash
> the system goes into a soft lockup state as 'napi_synchronize'
> is called after 'napi_disable' (which sets 'NAPI_STATE_SCHED'
> bit) and it sleeps into infinite loop as it waits for
> 'NAPI_STATE_SCHED' to be cleared. This condition is hit because
> 'ath10k_hif_stop' is called twice as below (resulting in calling
> 'napi_synchronize' after 'napi_disable')
>
> 'ath10k_core_restart' -> 'ath10k_hif_stop' (ATH10K_STATE_ON) ->
> -> 'ieee80211_restart_hw' -> 'ath10k_start' -> 'ath10k_halt' ->
> 'ath10k_core_stop' -> 'ath10k_hif_stop' (ATH10K_STATE_RESTARTING)
>
> Fix this by calling 'ath10k_halt' in ath10k_core_restart itself
> as it makes more sense before informing mac80211 to restart h/w
> Also remove 'ath10k_halt' in ath10k_start for the state of 'restarting'
>
> Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com>
> ---
> [thanks to Kalle and Michal for their inputs]
>
>  drivers/net/wireless/ath/ath10k/core.c | 2 +-
>  drivers/net/wireless/ath/ath10k/mac.c  | 1 -
>  2 files changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
> index 7005e2a..5bc6847 100644
> --- a/drivers/net/wireless/ath/ath10k/core.c
> +++ b/drivers/net/wireless/ath/ath10k/core.c
> @@ -1536,7 +1536,7 @@ static void ath10k_core_restart(struct work_struct *work)
>  	switch (ar->state) {
>  	case ATH10K_STATE_ON:
>  		ar->state = ATH10K_STATE_RESTARTING;
> -		ath10k_hif_stop(ar);
> +		ath10k_halt(ar);
>  		ath10k_scan_finish(ar);
>  		ieee80211_restart_hw(ar->hw);
>  		break;
> diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
> index 717b2fa..481842b 100644
> --- a/drivers/net/wireless/ath/ath10k/mac.c
> +++ b/drivers/net/wireless/ath/ath10k/mac.c
> @@ -4449,7 +4449,6 @@ static int ath10k_start(struct ieee80211_hw *hw)
>  		ar->state = ATH10K_STATE_ON;
>  		break;
>  	case ATH10K_STATE_RESTARTING:
> -		ath10k_halt(ar);
>  		ar->state = ATH10K_STATE_RESTARTED;
>  		break;
>  	case ATH10K_STATE_ON:
>


-- 
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc  http://www.candelatech.com

^ permalink raw reply

* [PATCH] mac80211:  Return avg sig, rx, tx values in ethtool stats.
From: greearb @ 2016-11-29 18:07 UTC (permalink / raw)
  To: linux-wireless; +Cc: johannes, Ben Greear

From: Ben Greear <greearb@candelatech.com>

For non-station devices.  This gives at least some useful
summary in some cases (especially when we know AP has only one
station attached, for instance).

Signed-off-by: Ben Greear <greearb@candelatech.com>
---

This is against 4.7.10+, applied to 4.4 and 4.9 for me as well.

 net/mac80211/ethtool.c | 56 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)

diff --git a/net/mac80211/ethtool.c b/net/mac80211/ethtool.c
index 4e937c1..dc6f76f 100644
--- a/net/mac80211/ethtool.c
+++ b/net/mac80211/ethtool.c
@@ -12,6 +12,25 @@
 #include "ieee80211_i.h"
 #include "sta_info.h"
 #include "driver-ops.h"
+#include <asm/div64.h>
+
+static inline __s64 mac_div(__s64 n, __u32 base)
+{
+	if (n < 0) {
+		__u64 tmp = -n;
+		do_div(tmp, base);
+		/* printk("pktgen: pg_div, n: %llu  base: %d  rv: %llu\n",
+		   n, base, tmp); */
+		return -tmp;
+	}
+	else {
+		__u64 tmp = n;
+		do_div(tmp, base);
+		/* printk("pktgen: pg_div, n: %llu  base: %d  rv: %llu\n",
+		   n, base, tmp); */
+		return tmp;
+	}
+}
 
 static int ieee80211_set_ringparam(struct net_device *dev,
 				   struct ethtool_ringparam *rp)
@@ -128,6 +147,12 @@ static void ieee80211_get_stats(struct net_device *dev,
 			data[i] = (u8)sinfo.signal_avg;
 		i++;
 	} else {
+		int amt_tx = 0;
+		int amt_rx = 0;
+		int amt_sig = 0;
+		s64 tx_accum = 0;
+		s64 rx_accum = 0;
+		s64 sig_accum = 0;
 		list_for_each_entry(sta, &local->sta_list, list) {
 			/* Make sure this station belongs to the proper dev */
 			if (sta->sdata->dev != dev)
@@ -137,6 +162,37 @@ static void ieee80211_get_stats(struct net_device *dev,
 			sta_set_sinfo(sta, &sinfo);
 			i = 0;
 			ADD_STA_STATS(sta);
+
+			i++; /* skip sta state */
+
+			if (sinfo.filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
+				tx_accum += 100000 *
+					cfg80211_calculate_bitrate(&sinfo.txrate);
+				amt_tx++;
+				data[i] = mac_div(tx_accum, amt_tx);
+			}
+			i++;
+
+			if (sinfo.filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
+				rx_accum += 100000 *
+					cfg80211_calculate_bitrate(&sinfo.rxrate);
+				amt_rx++;
+				data[i] = mac_div(rx_accum, amt_rx);
+			}
+			i++;
+
+			if (sinfo.filled & BIT(NL80211_STA_INFO_SIGNAL_AVG)) {
+				sig_accum += sinfo.signal_avg;
+				amt_sig++;
+				data[i] = (mac_div(sig_accum, amt_sig) & 0xFF);
+			}
+			i++;
+
+			/*pr_err("sta: %p (%s) sig_accum: %ld  amt-sig: %d filled: 0x%x:%08x rpt-sig-avg: %d  i: %d  div: %d sinfo.signal_avg: %d\n",
+			       sta, sta->sdata->name, (long)(sig_accum), amt_sig, (u32)(sinfo.filled >> 32),
+			       (u32)(sinfo.filled), (u32)(data[i-1]), i-1, (u32)(mac_div(sig_accum, amt_sig)),
+			       sinfo.signal_avg);*/
+
 		}
 	}
 
-- 
2.4.11

^ permalink raw reply related

* [PATCH 2/2] mac80211:  put upper bound on txqi queue length.
From: greearb @ 2016-11-29 18:05 UTC (permalink / raw)
  To: linux-wireless; +Cc: johannes, Ben Greear
In-Reply-To: <1480442753-6830-1-git-send-email-greearb@candelatech.com>

From: Ben Greear <greearb@candelatech.com>

This fixes OOM when using pktgen to drive a wifi station at more than
the station can transmit.  pktgen uses ndo_start_xmit instead of going
through the queue layer, so it will not back off when the queues are
stopped, and would thus cause packets to be added to the txqi->queue
until the system goes OOM and crashes.

Signed-off-by: Ben Greear <greearb@candelatech.com>
---

This is against 4.7.10+, not sure if it is actually needed in latest kernel.

 net/mac80211/tx.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index fbcb5fc..0573ab9 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1293,6 +1293,16 @@ static void ieee80211_drv_tx(struct ieee80211_local *local,
 		goto tx_normal;
 
 	ac = txq->ac;
+
+	if (atomic_read(&sdata->txqs_len[ac]) >=
+	    (local->hw.txq_ac_max_pending * 2)) {
+		/* Must be that something is not paying attention to
+		 * max-pending, like pktgen, so just drop this frame.
+		 */
+		ieee80211_free_txskb(&local->hw, skb);
+		return;
+	}
+
 	txqi = to_txq_info(txq);
 	atomic_inc(&sdata->txqs_len[ac]);
 	if (atomic_read(&sdata->txqs_len[ac]) >= local->hw.txq_ac_max_pending)
-- 
2.4.11

^ permalink raw reply related

* [PATCH 1/2] mac80211:  Show pending txqlen in debugfs.
From: greearb @ 2016-11-29 18:05 UTC (permalink / raw)
  To: linux-wireless; +Cc: johannes, Ben Greear

From: Ben Greear <greearb@candelatech.com>

Could be useful for debugging memory consumption issues,
and perhaps power-save as well.

Signed-off-by: Ben Greear <greearb@candelatech.com>
---

This is against 4.7.10+

 net/mac80211/debugfs.c | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c
index b251b2f7..0b49b43 100644
--- a/net/mac80211/debugfs.c
+++ b/net/mac80211/debugfs.c
@@ -162,6 +162,30 @@ static ssize_t hwflags_read(struct file *file, char __user *user_buf,
 	return rv;
 }
 
+static ssize_t misc_read(struct file *file, char __user *user_buf,
+			 size_t count, loff_t *ppos)
+{
+	struct ieee80211_local *local = file->private_data;
+	size_t bufsz = 1000;
+	char *buf = kzalloc(bufsz, GFP_KERNEL);
+	char *pos = buf, *end = buf + bufsz - 1;
+	ssize_t rv;
+	int i;
+	int ln;
+
+	pos += scnprintf(pos, end - pos, "pending:\n");
+
+	for (i = 0; i < IEEE80211_MAX_QUEUES; i++) {
+		ln = skb_queue_len(&local->pending[i]);
+		pos += scnprintf(pos, end - pos, "[%i] %d\n",
+				 i, ln);
+	}
+
+	rv = simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
+	kfree(buf);
+	return rv;
+}
+
 static ssize_t queues_read(struct file *file, char __user *user_buf,
 			   size_t count, loff_t *ppos)
 {
@@ -182,6 +206,7 @@ static ssize_t queues_read(struct file *file, char __user *user_buf,
 
 DEBUGFS_READONLY_FILE_OPS(hwflags);
 DEBUGFS_READONLY_FILE_OPS(queues);
+DEBUGFS_READONLY_FILE_OPS(misc);
 
 /* statistics stuff */
 
@@ -250,6 +275,7 @@ void debugfs_hw_add(struct ieee80211_local *local)
 	DEBUGFS_ADD(total_ps_buffered);
 	DEBUGFS_ADD(wep_iv);
 	DEBUGFS_ADD(queues);
+	DEBUGFS_ADD(misc);
 #ifdef CONFIG_PM
 	DEBUGFS_ADD_MODE(reset, 0200);
 #endif
-- 
2.4.11

^ permalink raw reply related

* Re: [PATCH] mmc: pwrseq: add support for Marvell SD8787 chip
From: Javier Martinez Canillas @ 2016-11-29 17:13 UTC (permalink / raw)
  To: Matt Ranostay
  Cc: linux-wireless@vger.kernel.org, Linux Kernel,
	devicetree@vger.kernel.org, linux-mmc@vger.kernel.org,
	Tony Lindgren, Ulf Hansson, Mark Rutland, Srinivas Kandagatla
In-Reply-To: <1479434109-8745-1-git-send-email-matt@ranostay.consulting>

Hello Matt,

On Thu, Nov 17, 2016 at 10:55 PM, Matt Ranostay
<matt@ranostay.consulting> wrote:
> Allow power sequencing for the Marvell SD8787 Wifi/BT chip.
> This can be abstracted to other chipsets if needed in the future.
>
> Cc: Tony Lindgren <tony@atomide.com>
> Cc: Ulf Hansson <ulf.hansson@linaro.org>
> Cc: Mark Rutland <mark.rutland@arm.com>
> Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
> Signed-off-by: Matt Ranostay <matt@ranostay.consulting>
> ---
>  .../devicetree/bindings/mmc/mmc-pwrseq-sd8787.txt  |  14 +++
>  .../bindings/net/wireless/marvell-sd8xxx.txt       |   4 +
>  drivers/mmc/core/Kconfig                           |  10 ++
>  drivers/mmc/core/Makefile                          |   1 +
>  drivers/mmc/core/pwrseq_sd8787.c                   | 117 +++++++++++++++++++++
>  5 files changed, 146 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/mmc/mmc-pwrseq-sd8787.txt
>  create mode 100644 drivers/mmc/core/pwrseq_sd8787.c
>
> diff --git a/Documentation/devicetree/bindings/mmc/mmc-pwrseq-sd8787.txt b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-sd8787.txt

According Documentation/devicetree/bindings/submitting-patches.txt,
the DT bindings patches should posted as a separate patch.

> new file mode 100644
> index 000000000000..1b658351629b
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-sd8787.txt
> @@ -0,0 +1,14 @@
> +* Marvell SD8787 power sequence provider
> +
> +Required properties:
> +- compatible: must be "mmc-pwrseq-sd8787".

Since this is not a generic binding, the compatible string should have
a vendor prefix.

> +- pwndn-gpio: contains a power down GPIO specifier.
> +- reset-gpio: contains a reset GPIO specifier.
> +

I wonder if we really need a custom power sequence provider for just
this SDIO WiFI chip though. AFAICT the only missing piece in
mmc-pwrseq-simple is the power down GPIO property, so maybe
mmc-pwrseq-simple could be extended instead to have an optional
powerdown-gpios property and instead in the Marvell SD8787 DT binding
can be mentioned which mmc-pwrseq-simple properties are required for
the device.

> +Example:
> +
> +       wifi_pwrseq: wifi_pwrseq {
> +               compatible = "mmc-pwrseq-sd8787";
> +               pwrdn-gpio = <&twl_gpio 0 GPIO_ACTIVE_LOW>;
> +               reset-gpio = <&twl_gpio 1 GPIO_ACTIVE_LOW>;
> +       }
> diff --git a/Documentation/devicetree/bindings/net/wireless/marvell-sd8xxx.txt b/Documentation/devicetree/bindings/net/wireless/marvell-sd8xxx.txt

Does this patch depend on a previous posted series? I don't see this
file in today's linux-next...

> index c421aba0a5bc..08fd65d35725 100644
> --- a/Documentation/devicetree/bindings/net/wireless/marvell-sd8xxx.txt
> +++ b/Documentation/devicetree/bindings/net/wireless/marvell-sd8xxx.txt
> @@ -32,6 +32,9 @@ Optional properties:
>                  so that the wifi chip can wakeup host platform under certain condition.
>                  during system resume, the irq will be disabled to make sure
>                  unnecessary interrupt is not received.
> +  - vmmc-supply: a phandle of a regulator, supplying VCC to the card
> +  - mmc-pwrseq:  phandle to the MMC power sequence node. See "mmc-pwrseq-*"
> +                for documentation of MMC power sequence bindings.
>
>  Example:
>
> @@ -44,6 +47,7 @@ so that firmware can wakeup host using this device side pin.
>  &mmc3 {
>         status = "okay";
>         vmmc-supply = <&wlan_en_reg>;
> +       mmc-pwrseq = <&wifi_pwrseq>;
>         bus-width = <4>;
>         cap-power-off-card;
>         keep-power-in-suspend;

I think this change should be split in a separate patch as well.

Best regards,
Javier

^ permalink raw reply

* Re: [PATCH] mmc: pwrseq: add support for Marvell SD8787 chip
From: Ulf Hansson @ 2016-11-29 16:53 UTC (permalink / raw)
  To: Rob Herring
  Cc: Matt Ranostay, linux-wireless@vger.kernel.org,
	linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
	linux-mmc@vger.kernel.org, Tony Lindgren, Mark Rutland,
	Srinivas Kandagatla
In-Reply-To: <CAL_Jsq+80LAkCGEdP5T0AWFV2nRtZ8nrkBoNRB47CR9JN=9dog@mail.gmail.com>

On 29 November 2016 at 15:51, Rob Herring <robh@kernel.org> wrote:
> On Mon, Nov 28, 2016 at 9:54 AM, Ulf Hansson <ulf.hansson@linaro.org> wrote:
>> [...]
>>
>>>> +
>>>> +Example:
>>>> +
>>>> +     wifi_pwrseq: wifi_pwrseq {
>>>> +             compatible = "mmc-pwrseq-sd8787";
>>>> +             pwrdn-gpio = <&twl_gpio 0 GPIO_ACTIVE_LOW>;
>>>> +             reset-gpio = <&twl_gpio 1 GPIO_ACTIVE_LOW>;
>>>> +     }
>>>> diff --git a/Documentation/devicetree/bindings/net/wireless/marvell-sd8xxx.txt b/Documentation/devicetree/bindings/net/wireless/marvell-sd8xxx.txt
>>>> index c421aba0a5bc..08fd65d35725 100644
>>>> --- a/Documentation/devicetree/bindings/net/wireless/marvell-sd8xxx.txt
>>>> +++ b/Documentation/devicetree/bindings/net/wireless/marvell-sd8xxx.txt
>>>> @@ -32,6 +32,9 @@ Optional properties:
>>>>                so that the wifi chip can wakeup host platform under certain condition.
>>>>                during system resume, the irq will be disabled to make sure
>>>>                unnecessary interrupt is not received.
>>>> +  - vmmc-supply: a phandle of a regulator, supplying VCC to the card
>>>
>>> This is why pwrseq is wrong. You have some properties in the card node
>>> and some in pwrseq node. Everything should be in the card node.
>>
>> Put "all" in the card node, just doesn't work for MMC. Particular in
>> cases when we have removable cards, as then it would be wrong to have
>> a card node.
>
> When is there a problem with removable cards? The connector is
> standard and everything needed (CD, VMMC, VDDIO, etc.) is defined in
> the host controller node. If that isn't sufficient, then we should
> start defining a connector node.

I probably didn't get your point. Anyway, let's try again.

I don't see any problems with removable cards and neither with
non-removable cards.

Normally, we don't need a connector node, but instead we put the
related properties/phandles in the host controller node. This works
fine!

For SDIO func devices, sometimes we need a child node of the host
controller node, as to be able to describe certain characteristics of
the SDIO func device. So this case is kind of a special type of card
node (because one can have several SDIO func devices attached, even if
this isn't used).

Now, to follow the current bindings, we must not put connector related
bindings in the card node, like the vmmc-supply, perhaps that is what
causes confusion here?

>
>> The mmc pwrseq DT bindings just follows the legacy approach for MMC
>> and that's why the pwrseq handle is at the controller node. Yes, would
>> could have done it differently, but this is the case now, so we will
>> have to accept that.
>
> We're stuck with supporting the existing cases. That doesn't mean
> we're stuck with the same thing for new cases.

Agree!

But I think there is nothing to improve in this case, or am I wrong?

Kind regards
Uffe

^ permalink raw reply

* Re: bcma: add Dell Inspiron 3148
From: Kalle Valo @ 2016-11-29 15:35 UTC (permalink / raw)
  To: Jiri Slaby; +Cc: zajec5, linux-wireless, linux-kernel, Jiri Slaby
In-Reply-To: <20161128075712.10785-1-jslaby@suse.cz>

Jiri Slaby <jslaby@suse.cz> wrote:
> This is what is in the laptop:
> 01:00.0 Network controller [0280]: Broadcom Limited BCM43142 802.11b/g/n [14e4:4365] (rev 01)
>         Subsystem: Dell Device [1028:0018]
>         Flags: bus master, fast devsel, latency 0, IRQ 18
>         Memory at b0400000 (64-bit, non-prefetchable) [size=32K]
>         Capabilities: [40] Power Management version 3
>         Capabilities: [58] Vendor Specific Information: Len=78 <?>
>         Capabilities: [48] MSI: Enable- Count=1/1 Maskable- 64bit+
>         Capabilities: [d0] Express Endpoint, MSI 00
>         Capabilities: [100] Advanced Error Reporting
>         Capabilities: [13c] Virtual Channel
>         Capabilities: [160] Device Serial Number 00-00-9a-ff-ff-f3-40-b8
>         Capabilities: [16c] Power Budgeting <?>
> 
> With the patch, I can see:
> bcma: bus0: Found chip with id 43142, rev 0x01 and package 0x08
> bcma: bus0: Core 0 found: ChipCommon (manuf 0x4BF, id 0x800, rev 0x28, class 0x0)
> bcma: bus0: Core 1 found: IEEE 802.11 (manuf 0x4BF, id 0x812, rev 0x21, class 0x0)
> bcma: bus0: Core 2 found: PCIe (manuf 0x4BF, id 0x820, rev 0x16, class 0x0)
> bcma: bus0: Core 3 found: UNKNOWN (manuf 0x43B, id 0x368, rev 0x00, class 0x0)
> bcma: bus0: Bus registered
> 
> The wifi is not currently supported by brcmsmac yet:
> brcmsmac bcma1:1: mfg 4bf core 812 rev 33 class 0 irq 18
> brcmsmac: unknown device id 4365
> 
> So don't expect a working wifi from this patch :).
> 
> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
> Cc: Rafał Miłecki <zajec5@gmail.com>
> Cc: <linux-wireless@vger.kernel.org>

Patch applied to wireless-drivers-next.git, thanks.

59391a96dc73 bcma: add Dell Inspiron 3148

-- 
https://patchwork.kernel.org/patch/9449165/

Documentation about submitting wireless patches and checking status
from patchwork:

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches

^ permalink raw reply

* Re: rtlwifi: Fix enter/exit power_save
From: Kalle Valo @ 2016-11-29 15:33 UTC (permalink / raw)
  To: Larry Finger; +Cc: devel, linux-wireless, Larry Finger, Stable
In-Reply-To: <20161126204335.12847-1-Larry.Finger@lwfinger.net>

Larry Finger <Larry.Finger@lwfinger.net> wrote:
> In commit a5ffbe0a1993 ("rtlwifi: Fix scheduling while atomic bug") and
> commit a269913c52ad ("rtlwifi: Rework rtl_lps_leave() and rtl_lps_enter()
> to use work queue"), an error was introduced in the power-save routines
> due to the fact that leaving PS was delayed by the use of a work queue.
> 
> This problem is fixed by detecting if the enter or leave routines are
> in interrupt mode. If so, the workqueue is used to place the request.
> If in normal mode, the enter or leave routines are called directly.
> 
> Fixes: a269913c52ad ("rtlwifi: Rework rtl_lps_leave() and rtl_lps_enter() to use work queue")
> Reported-by: Ping-Ke Shih <pkshih@realtek.com>
> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
> Cc: Stable <stable@vger.kernel.org>

Patch applied to wireless-drivers-next.git, thanks.

ba9f93f82aba rtlwifi: Fix enter/exit power_save

-- 
https://patchwork.kernel.org/patch/9448539/

Documentation about submitting wireless patches and checking status
from patchwork:

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches

^ permalink raw reply

* Re: mt7601u: wait for clear rxq when stopping mac
From: Kalle Valo @ 2016-11-29 15:32 UTC (permalink / raw)
  To: Anthony Romano; +Cc: linux-wireless, kubakici
In-Reply-To: <20161125111334.31085-1-anthony.romano@coreos.com>

Anthony Romano <anthony.romano@coreos.com> wrote:
> mt7601u_mac_stop_hw should stop polling the rxq once it remains empty
> but instead continues polling after the rxq status stays clear; bringing
> down the interface takes about six seconds from this alone.
> 
> Speed up path by exiting rxq loop once status repeatedly polls empty.
> 
> Signed-off-by: Anthony Romano <anthony.romano@coreos.com>
> Reviewed-by: Jakub Kicinski <kubakici@wp.pl>

Patch applied to wireless-drivers-next.git, thanks.

05db221e30a9 mt7601u: wait for clear rxq when stopping mac

-- 
https://patchwork.kernel.org/patch/9447371/

Documentation about submitting wireless patches and checking status
from patchwork:

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches

^ permalink raw reply

* Re: adm80211: Removed unused 'io_addr' 'mem_addr' variables
From: Kalle Valo @ 2016-11-29 15:32 UTC (permalink / raw)
  To: Kirtika Ruchandani; +Cc: Arnd Bergmann, Johannes Berg, linux-wireless, netdev
In-Reply-To: <20161124064045.GA8836@google.com>

Kirtika Ruchandani <kirtika.ruchandani@gmail.com> wrote:
> Initial commit cc0b88cf5ecf ([PATCH] Add adm8211 802.11b wireless driver)
> introduced variables mem_addr and io_addr in adm80211_probe() that are
> set but not used. Compiling with W=1 gives the following warnings,
> fix them.
> 
> drivers/net/wireless/admtek/adm8211.c: In function ‘adm8211_probe’:
> drivers/net/wireless/admtek/adm8211.c:1769:15: warning: variable ‘io_addr’ set but not used [-Wunused-but-set-variable]
>   unsigned int io_addr, io_len;
>                ^
> drivers/net/wireless/admtek/adm8211.c:1768:16: warning: variable ‘mem_addr’ set but not used [-Wunused-but-set-variable]
>   unsigned long mem_addr, mem_len;
>                 ^
> 
> These are harmless warnings and are only being fixed to reduce the
> noise with W=1 in the kernel. The calls to pci_resource_start do not
> have any side-effects and are safe to remove.
> 
> Fixes: cc0b88cf5ecf ("[PATCH] Add adm8211 802.11b wireless driver")
> Cc: Michael Wu <flamingice@sourmilk.net>
> Cc: John W. Linville <linville@tuxdriver.com>
> Signed-off-by: Kirtika Ruchandani <kirtika@chromium.org>

The patch failed to apply:

fatal: corrupt patch at line 14
Applying: adm80211: Removed unused 'io_addr' 'mem_addr' variables
Repository lacks necessary blobs to fall back on 3-way merge.
Cannot fall back to three-way merge.
Patch failed at 0001 adm80211: Removed unused 'io_addr' 'mem_addr' variables

Patch set to Changes Requested.

-- 
https://patchwork.kernel.org/patch/9444901/

Documentation about submitting wireless patches and checking status
from patchwork:

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches

^ permalink raw reply

* Re: [01/12] brcmfmac: add pcie host dongle interface rev6 support
From: Kalle Valo @ 2016-11-29 15:30 UTC (permalink / raw)
  To: Arend Van Spriel; +Cc: linux-wireless, Franky Lin, Arend van Spriel
In-Reply-To: <1479896731-5091-2-git-send-email-arend.vanspriel@broadcom.com>

Arend Van Spriel <arend.vanspriel@broadcom.com> wrote:
> From: Franky Lin <franky.lin@broadcom.com>
> 
> In rev6 of pcie host dongle interface protocol, host needs to maximum
> supported ring number from dongle shared memory and set up ring buffer
> and ring indices offset accordingly.
> 
> Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
> Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
> Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com>
> Signed-off-by: Franky Lin <franky.lin@broadcom.com>
> Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>

12 patches applied to wireless-drivers-next.git, thanks.

be4b092cab84 brcmfmac: add pcie host dongle interface rev6 support
dc630dc5c753 brcmfmac: add support for 43341 chip
ac55136f43d3 brcmfmac: move pno helper functions in separate source file
3e2e86ab19c2 brcmfmac: fix handling ssids in .sched_scan_start() callback
ab5981c83033 brcmfmac: change prototype for brcmf_do_escan()
fa85b30a9084 brcmfmac: make internal escan more generic
fca6cb2f059e brcmfmac: split up brcmf_pno_config() function
3e48611d31dd brcmfmac: move scheduled scan activation to pno source file
331e78944361 brcmfmac: use provided channels for scheduled scan
dfe5b0d52d58 brcmfmac: remove restriction from .sched_scan_start() callback
c6989fd55ceb brcmfmac: use requested scan interval in scheduled scan
53e3a80d80c8 brcmfmac: fix scheduled scan result handling for newer chips

-- 
https://patchwork.kernel.org/patch/9442895/

Documentation about submitting wireless patches and checking status
from patchwork:

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches

^ permalink raw reply

* Re: mwifiex: pcie: implement timeout loop for FW programming doorbell
From: Kalle Valo @ 2016-11-29 15:28 UTC (permalink / raw)
  To: Brian Norris
  Cc: Amitkumar Karwar, Nishant Sarmukadam, linux-kernel,
	linux-wireless, Cathy Luo, Dmitry Torokhov, Brian Norris
In-Reply-To: <1479868785-16263-1-git-send-email-briannorris@chromium.org>

Brian Norris <briannorris@chromium.org> wrote:
> Marvell Wifi PCIe modules don't always behave nicely for PCIe power
> management when their firmware hasn't been loaded, particularly after
> suspending the PCIe link one or more times. When this happens, we might
> end up spinning forever in this status-polling tight loop. Let's make
> this less tight by adding a timeout and by sleeping a bit in between
> reads, as we do with the other similar loops.
> 
> This prevents us from hogging a CPU even in such pathological cases, and
> allows the FW initialization to just fail gracefully instead.
> 
> I chose the same polling parameters as the earlier loop in this
> function, and empirically, I found that this loop never makes it more
> than about 12 cycles in a sane FW init sequence. I had no official
> information on the actual intended latency for this portion of the
> download.
> 
> Signed-off-by: Brian Norris <briannorris@chromium.org>
> Acked-by: Amitkumar Karwar <akarwar@marvell.com>

Patch applied to wireless-drivers-next.git, thanks.

22dde1ed5a48 mwifiex: pcie: implement timeout loop for FW programming doorbell

-- 
https://patchwork.kernel.org/patch/9442499/

Documentation about submitting wireless patches and checking status
from patchwork:

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches

^ permalink raw reply

* Re: [v2, 1/7] mwifiex: Removed unused mwifiex_private* 'priv' variable
From: Kalle Valo @ 2016-11-29 15:28 UTC (permalink / raw)
  To: Kirtika Ruchandani
  Cc: Amitkumar Karwar, Arnd Bergmann, linux-wireless,
	Nishant Sarmukadam, Zhaoyang Liu, Bing Zhao, Xinming Hu,
	Avinash Patil
In-Reply-To: <fa8a77df4638cf21720d8c5094afb83475947843.1479950323.git.kirtika@google.com>

Kirtika Ruchandani <kirtika.ruchandani@gmail.com> wrote:
> Commit bec568ff5107 removed the last remaining usage of struct
> mwifiex_private* priv in mwifiex_fw_dpc(), by removing the call to
> mwifiex_del_virtual_intf().
> Compiling mwifiex/ with W=1 gives the following warning, fix it.
> mwifiex/main.c: In function ‘mwifiex_fw_dpc’:
> mwifiex/main.c:520:26: warning: variable ‘priv’ set but not used [-Wunused-but-set-variable]
> 
> Fixes: bec568ff5107 ("mwifiex: failure path handling in mwifiex_add_virtual_intf()")
> Cc: Amitkumar Karwar <akarwar@marvell.com>
> Signed-off-by: Kirtika Ruchandani <kirtika@google.com>

7 patches applied to wireless-drivers-next.git, thanks.

70d740598713 mwifiex: Removed unused mwifiex_private* 'priv' variable
8ac9134161d9 mwifiex: Remove unused 'chan_num' variable
2c2bcabf02e1 mwifiex: Remove unused 'sta_ptr' variable
60261b266a84 mwifiex: Remove unused 'adapter'variable
e9f1db8b6859 mwifiex: Remove unused 'pm_flag' variable
67dd2a754906 mwifiex: Removed unused 'pkt_type' variable
4133828c76c3 mwifiex: Remove unused 'bcd_usb' variable

-- 
https://patchwork.kernel.org/patch/9444651/

Documentation about submitting wireless patches and checking status
from patchwork:

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches

^ permalink raw reply

* Re: [PATCH] ath9k_htc: don't use HZ for usb msg timeouts
From: Oleksij Rempel @ 2016-11-29 15:12 UTC (permalink / raw)
  To: Anthony Romano; +Cc: linux-wireless, ath9k-devel
In-Reply-To: <CAENtvd7sTN0HRkY4z+f8wozEk_AQDipX9nNV7r-Sbyzh4tt9pA@mail.gmail.com>


[-- Attachment #1.1: Type: text/plain, Size: 1042 bytes --]

Am 29.11.2016 um 10:45 schrieb Anthony Romano:
> Hi Oleksij,
> 
> I put 4 ar9271's on a 4 port hub into monitor mode for you and all
> interfaces are simultaneously collecting packets. My cheap USB power
> meter reads 4.37v@650mA between the hub and the host, so it's pushing
> the limit but appears stable.

Great work, thank you!

> On Mon, Nov 28, 2016 at 7:34 AM, Oleksij Rempel <fishor@gmx.net> wrote:
>> Hi Anthony,
>>
>> Am 28.11.2016 um 05:27 schrieb Anthony Romano:
>>> The usb_*_msg() functions expect a timeout in msecs but are given HZ,
>>> which is ticks per second. If HZ=100, firmware download often times out
>>> when there is modest USB utilization and the device fails to initialize.
>>
>>> Replaces HZ in usb_*_msg timeouts with 1000 msec since HZ is one second
>>> for timeouts in jiffies.
>>
>> wow..
>> This fix allow you use 4 adapter at same time?
>>> Signed-off-by: Anthony Romano <anthony.roman@coreos.com>

Acked-by: Oleksij Rempel <linux@rempel-privat.de>



-- 
Regards,
Oleksij


[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 213 bytes --]

^ permalink raw reply

* pull-request: wireless-drivers 2016-11-29
From: Kalle Valo @ 2016-11-29 14:59 UTC (permalink / raw)
  To: David Miller; +Cc: linux-wireless, netdev, linux-kernel

Hi Dave,

if there's still time here's one more patch to 3.9. I think this is good
to have in 3.9 as it fixes an issue where we were printing uninitialised
memory in mwifiex. I had this in wireless-drivers already for some time
as I was waiting for other fixes and nothing serious actually came up.

If this doesn't make it to 3.9 that's not a problem, I'll just merge
this to wireless-drivers-next. Let me know what you prefer.

Kalle

The following changes since commit d3532ea6ce4ea501e421d130555e59edc2945f99:

  brcmfmac: avoid maybe-uninitialized warning in brcmf_cfg80211_start_ap (2016-10-27 18:04:54 +0300)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers.git tags/wireless-drivers-for-davem-2016-11-29

for you to fetch changes up to fcd2042e8d36cf644bd2d69c26378d17158b17df:

  mwifiex: printk() overflow with 32-byte SSIDs (2016-11-17 13:16:52 +0200)

----------------------------------------------------------------
wireless-drivers fixes for 4.9

mwifiex

* properly terminate SSIDs so that uninitalised memory is not printed

----------------------------------------------------------------
Brian Norris (1):
      mwifiex: printk() overflow with 32-byte SSIDs

 drivers/net/wireless/marvell/mwifiex/cfg80211.c |   13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

^ permalink raw reply

* Re: Deadlock in hacked 4.9.0-rc6+ kernel.
From: Mohammed Shafi Shajakhan @ 2016-11-29 14:57 UTC (permalink / raw)
  To: Ben Greear; +Cc: linux-wireless@vger.kernel.org
In-Reply-To: <583D95B9.1010601@candelatech.com>

Hi Ben,

On Tue, Nov 29, 2016 at 06:50:33AM -0800, Ben Greear wrote:
> 
> 
> On 11/28/2016 11:34 PM, Mohammed Shafi Shajakhan wrote:
> >Hi Ben,
> >
> >On Mon, Nov 28, 2016 at 10:52:44AM -0800, Ben Greear wrote:
> >>I ported forward my patch set to the 4.9 kernel, and I am seeing lockups fairly
> >>often.  As always, could be something I added locally, but in case someone sees
> >>similar, then maybe I can reproduce it quicker and help track this down since my
> >>test config uses many virtual stations and virtual APs.
> >
> >[shafi] does this happens with a firmware crash (or) hardware restart ?, please
> >let us know, we have a potential fix for the same and we will send the fix for
> >linux wireless review soon, else please ignore.
> 
> It does look like the FW restarted, but not sure if that was due to crash or
> because all vdevs were admin-down for some reason.

[shafi] the kernel crash that happens after firmware crash / assert shall be helped
by the patch
https://patchwork.kernel.org/patch/9452265/

You could easily trigger the same in ath10k debugfs (simulate assert/hw-restart)

> 
> Thanks,
> Ben
> 
> >
> >>
> >>And, if someone knows the magic trick to make dmesg output from lockdep
> >>not be so split up, please let me know.
> >>
> >>
> >>[81871.799595] ath10k_pci 0000:05:00.0: boot warm reset complete
> >>[81873.983645] sta559: Failed to send nullfunc to AP 04:f0:21:0f:3c:3c after 1000ms, disconnecting
> >>[81873.991198] ath10k_pci 0000:05:00.0: mac ampdu vdev_id 49 sta 04:f0:21:0f:3c:3c tid 6 action 1
> >>[82195.484265] INFO: task mission-control:1506 blocked for more than 180 seconds.
> >>[82195.490228]       Tainted: G        W       4.9.0-rc6+ #9
> >>[82195.494367] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> >>[82195.500922] mission-control D    0  1506      1 0x00000000
> >>[82195.505152]  ffff8801f1c3a300 0000000000002629 ffff880214de2640 ffff8801f2f38000
> >>[82195.511330]  ffff88021e3198d8 ffffc90003867c80 ffffffff819322eb 0000000000000006
> >>[82195.518230]  ffff8801f2f38828 0000000003867c78 ffff88021e3198d8 0000000000000000
> >>[82195.525121] Call Trace:
> >>[82195.526300]  [<ffffffff819322eb>] ? __schedule+0x2fb/0xb30
> >>[82195.530862]  [<ffffffff81932b58>] schedule+0x38/0x90
> >>[82195.534552]  [<ffffffff81932f20>] schedule_preempt_disabled+0x10/0x20
> >>[82195.540073]  [<ffffffff81934b15>] mutex_lock_nested+0x175/0x3f0
> >>[82195.544723]  [<ffffffff81842df6>] ? rtnetlink_rcv+0x16/0x30
> >>[82195.549424]  [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>[82195.553555]  [<ffffffff8186c76d>] netlink_unicast+0x1cd/0x2e0
> >>[82195.558414]  [<ffffffff8186c6e9>] ? netlink_unicast+0x149/0x2e0
> >>[82195.563062]  [<ffffffff8186cb62>] netlink_sendmsg+0x2e2/0x390
> >>[82195.567889]  [<ffffffff812dcb98>] ? __fget+0x108/0x1f0
> >>[82195.571755]  [<ffffffff8180ca73>] sock_sendmsg+0x33/0x40
> >>[82195.575791]  [<ffffffff8180d041>] SYSC_sendto+0x101/0x190
> >>[82195.580258]  [<ffffffff813ea076>] ? security_file_permission+0x96/0xb0
> >>[82195.585521]  [<ffffffff812ba7e9>] ? rw_verify_area+0x49/0xb0
> >>[82195.589909]  [<ffffffff811771d9>] ? trace_hardirqs_on_caller+0x129/0x1b0
> >>[82195.595364]  [<ffffffff8100301a>] ? trace_hardirqs_on_thunk+0x1a/0x1c
> >>[82195.600538]  [<ffffffff8180dee9>] SyS_sendto+0x9/0x10
> >>[82195.604319]  [<ffffffff81939f45>] entry_SYSCALL_64_fastpath+0x23/0xc6
> >>[82195.609502]
> >>Showing all locks held in the system:
> >>[82195.613134] 2 locks held by khungtaskd/37:
> >>[82195.615958]  #0:
> >>[82195.616408]  (
> >>[82195.616802] rcu_read_lock
> >>[82195.617946] ){......}
> >>[82195.618983] , at:
> >>[82195.619522] [<ffffffff811ebd5c>] watchdog+0x9c/0x600
> >>[82195.623219]  #1:
> >>[82195.623666]  (
> >>[82195.624060] tasklist_lock
> >>[82195.625208] ){.+.+..}
> >>[82195.626213] , at:
> >>[82195.626748] [<ffffffff8117576d>] debug_show_all_locks+0x3d/0x1a0
> >>[82195.631513] 2 locks held by agetty/1149:
> >>[82195.634160]  #0:
> >>[82195.634610]  (
> >>[82195.635001] &tty->ldisc_sem
> >>[82195.636320] ){++++.+}
> >>[82195.637323] , at:
> >>[82195.637859] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
> >>[82195.642077]  #1:
> >>[82195.642528]  (
> >>[82195.642922] &ldata->atomic_read_lock
> >>[82195.645027] ){+.+...}
> >>[82195.646030] , at:
> >>[82195.646569] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
> >>[82195.650442] 1 lock held by mission-control/1506:
> >>[82195.653800]  #0:
> >>[82195.654249]  (
> >>[82195.654645] rtnl_mutex
> >>[82195.655527] ){+.+.+.}
> >>[82195.656534] , at:
> >>[82195.657068] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>[82195.661113] 2 locks held by bash/1691:
> >>[82195.663586]  #0:
> >>[82195.664033]  (
> >>[82195.664433] &tty->ldisc_sem
> >>[82195.665750] ){++++.+}
> >>[82195.666754] , at:
> >>[82195.667294] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
> >>[82195.671509]  #1:
> >>[82195.671954]  (
> >>[82195.672349] &ldata->atomic_read_lock
> >>[82195.674447] ){+.+...}
> >>[82195.675451] , at:
> >>[82195.675987] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
> >>[82195.679857] 1 lock held by evolution-calen/1768:
> >>[82195.683200]  #0:
> >>[82195.683649]  (
> >>[82195.684040] rtnl_mutex
> >>[82195.684925] ){+.+.+.}
> >>[82195.685930] , at:
> >>[82195.686467] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>[82195.690514] 2 locks held by hostapd/4100:
> >>[82195.693249]  #0:
> >>[82195.693694]  (
> >>[82195.694090] cb_lock
> >>[82195.694711] ){++++++}
> >>[82195.695741] , at:
> >>[82195.696279] [<ffffffff8186d494>] genl_rcv+0x14/0x40
> >>[82195.699888]  #1:
> >>[82195.700338]  (
> >>[82195.700731] genl_mutex
> >>[82195.701616] ){+.+.+.}
> >>[82195.702619] , at:
> >>[82195.703155] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82195.707113] 2 locks held by hostapd/4392:
> >>[82195.709847]  #0:
> >>[82195.710301]  (
> >>[82195.710695] cb_lock
> >>[82195.711317] ){++++++}
> >>[82195.712324] , at:
> >>[82195.712857] [<ffffffff8186d494>] genl_rcv+0x14/0x40
> >>[82195.716467]  #1:
> >>[82195.716911]  (
> >>[82195.717306] genl_mutex
> >>[82195.718186] ){+.+.+.}
> >>[82195.719193] , at:
> >>[82195.719727] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82195.723682] 3 locks held by wpa_supplicant/4574:
> >>[82195.727028]  #0:
> >>[82195.727480]  (
> >>[82195.727871] cb_lock
> >>[82195.728494] ){++++++}
> >>[82195.729501] , at:
> >>[82195.730034] [<ffffffff8186d494>] genl_rcv+0x14/0x40
> >>[82195.733644]  #1:
> >>[82195.734089]  (
> >>[82195.734489] genl_mutex
> >>[82195.735371] ){+.+.+.}
> >>[82195.736377] , at:
> >>[82195.736910] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82195.740867]  #2:
> >>[82195.741316]  (
> >>[82195.741712] rtnl_mutex
> >>[82195.742595] ){+.+.+.}
> >>[82195.743601] , at:
> >>[82195.744135] [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82195.747833] 2 locks held by hostapd/4733:
> >>[82195.750566]  #0:
> >>[82195.751014]  (
> >>[82195.751409] cb_lock
> >>[82195.752029] ){++++++}
> >>[82195.753033] , at:
> >>[82195.753570] [<ffffffff8186d494>] genl_rcv+0x14/0x40
> >>[82195.757177]  #1:
> >>[82195.757625]  (
> >>[82195.758018] genl_mutex
> >>[82195.758902] ){+.+.+.}
> >>[82195.759905] , at:
> >>[82195.760444] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82195.764400] 2 locks held by bash/5322:
> >>[82195.766874]  #0:
> >>[82195.767325]  (
> >>[82195.767718] &tty->ldisc_sem
> >>[82195.769036] ){++++.+}
> >>[82195.770040] , at:
> >>[82195.770580] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
> >>[82195.774795]  #1:
> >>[82195.775246]  (
> >>[82195.775640] &ldata->atomic_read_lock
> >>[82195.777738] ){+.+...}
> >>[82195.778744] , at:
> >>[82195.779283] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
> >>[82195.783152] 2 locks held by bash/24789:
> >>[82195.786358]  #0:
> >>[82195.786802]  (
> >>[82195.787198] &tty->ldisc_sem
> >>[82195.788515] ){++++.+}
> >>[82195.789519] , at:
> >>[82195.790052] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
> >>[82195.794271]  #1:
> >>[82195.794718]  (
> >>[82195.795109] &ldata->atomic_read_lock
> >>[82195.797207] ){+.+...}
> >>[82195.798212] , at:
> >>[82195.798749] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
> >>[82195.802624] 5 locks held by kworker/u8:1/1965:
> >>[82195.805792]  #0:
> >>[82195.806240]  (
> >>[82195.806632] "%s"wiphy_name(local->hw.wiphy)
> >>[82195.809338] ){++++.+}
> >>[82195.810339] , at:
> >>[82195.810877] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82195.815353]  #1:
> >>[82195.815800]  (
> >>[82195.816196] (&sdata->work)
> >>[82195.817425] ){+.+.+.}
> >>[82195.818430] , at:
> >>[82195.818964] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82195.823443]  #2:
> >>[82195.823890]  (
> >>[82195.824290] &wdev->mtx
> >>[82195.825170] ){+.+.+.}
> >>[82195.826175] , at:
> >>[82195.826753] [<ffffffffa0e65557>] ieee80211_sta_work+0x47/0x1b50 [mac80211]
> >>[82195.832359]  #3:
> >>[82195.832809]  (
> >>[82195.833203] &local->sta_mtx
> >>[82195.834519] ){+.+.+.}
> >>[82195.835525] , at:
> >>[82195.836072] [<ffffffffa0dffae6>] __sta_info_flush+0x86/0x190 [mac80211]
> >>[82195.841418]  #4:
> >>[82195.841863]  (
> >>[82195.842258] &ar->conf_mutex
> >>[82195.843578] ){+.+.+.}
> >>[82195.844582] , at:
> >>[82195.845129] [<ffffffffa12a3165>] ath10k_sta_state+0x205/0xbd0 [ath10k_core]
> >>[82195.850823] 3 locks held by kworker/u8:3/2064:
> >>[82195.853995]  #0:
> >>[82195.854443]  (
> >>[82195.854834] "%s""ath10k_wq"
> >>[82195.856150] ){.+.+.+}
> >>[82195.857151] , at:
> >>[82195.857689] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82195.862166]  #1:
> >>[82195.862614]  (
> >>[82195.863008] (&(&ar->debug.nop_dwork)->work)
> >>[82195.865714] ){+.+...}
> >>[82195.866721] , at:
> >>[82195.867264] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82195.871738]  #2:
> >>[82195.872182]  (
> >>[82195.872577] &ar->conf_mutex
> >>[82195.873896] ){+.+.+.}
> >>[82195.874899] , at:
> >>[82195.875445] [<ffffffffa12acbb4>] ath10k_debug_nop_dwork+0x24/0x80 [ath10k_core]
> >>[82195.881482] 4 locks held by kworker/0:2/2149:
> >>[82195.884563]  #0:
> >>[82195.885011]  (
> >>[82195.885409] "events_freezable"
> >>[82195.886986] ){.+.+..}
> >>[82195.887990] , at:
> >>[82195.888530] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82195.893006]  #1:
> >>[82195.893455]  (
> >>[82195.893846] (&local->restart_work)
> >>[82195.895772] ){+.+...}
> >>[82195.896773] , at:
> >>[82195.897314] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82195.901790]  #2:
> >>[82195.902242]  (
> >>[82195.902633] rtnl_mutex
> >>[82195.903517] ){+.+.+.}
> >>[82195.904523] , at:
> >>[82195.905057] [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82195.908753]  #3:
> >>[82195.909198]  (
> >>[82195.909593] &ar->conf_mutex
> >>[82195.910911] ){+.+.+.}
> >>[82195.911915] , at:
> >>[82195.912457] [<ffffffffa12a8686>] ath10k_start+0x26/0x5d0 [ath10k_core]
> >>[82195.917716] 3 locks held by kworker/3:3/2153:
> >>[82195.920797]  #0:
> >>[82195.921251]  (
> >>[82195.921645] "events"
> >>[82195.922353] ){.+.+.+}
> >>[82195.923354] , at:
> >>[82195.923890] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82195.928366]  #1:
> >>[82195.928813]  (
> >>[82195.929204] (linkwatch_work).work
> >>[82195.931043] ){+.+.+.}
> >>[82195.932047] , at:
> >>[82195.932584] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82195.937062]  #2:
> >>[82195.937511]  (
> >>[82195.937902] rtnl_mutex
> >>[82195.938785] ){+.+.+.}
> >>[82195.939791] , at:
> >>[82195.940328] [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82195.944024] 3 locks held by kworker/2:2/2984:
> >>[82195.947106]  #0:
> >>[82195.947555]  (
> >>[82195.947946] "%s"("ipv6_addrconf")
> >>[82195.949785] ){.+.+..}
> >>[82195.950789] , at:
> >>[82195.951326] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82195.955803]  #1:
> >>[82195.956257]  (
> >>[82195.956651] (addr_chk_work).work
> >>[82195.958402] ){+.+...}
> >>[82195.959406] , at:
> >>[82195.959941] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82195.964419]  #2:
> >>[82195.964867]  (
> >>[82195.965267] rtnl_mutex
> >>[82195.966146] ){+.+.+.}
> >>[82195.967151] , at:
> >>[82195.967688] [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82195.971388] 1 lock held by ip/3840:
> >>[82195.973602]  #0:
> >>[82195.974049]  (
> >>[82195.974447] rtnl_mutex
> >>[82195.975331] ){+.+.+.}
> >>[82195.976332] , at:
> >>[82195.976867] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>[82195.980910] 1 lock held by ip/3843:
> >>[82195.983121]  #0:
> >>[82195.983572]  (
> >>[82195.983963] rtnl_mutex
> >>[82195.984847] ){+.+.+.}
> >>[82195.985848] , at:
> >>[82195.986385] [<ffffffff8186959e>] netlink_dump+0x1e/0x290
> >>[82195.990430] 1 lock held by ip/3845:
> >>[82195.992641]  #0:
> >>[82195.993088]  (
> >>[82195.993483] rtnl_mutex
> >>[82195.994366] ){+.+.+.}
> >>[82195.995368] , at:
> >>[82195.995903] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>
> >>[82196.000163] =============================================
> >>
> >>[82196.004502] INFO: task evolution-calen:1768 blocked for more than 180 seconds.
> >>[82196.010457]       Tainted: G        W       4.9.0-rc6+ #9
> >>[82196.014591] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> >>[82196.021147] evolution-calen D    0  1768      1 0x00000000
> >>[82196.025724]  ffff8801ed8b1e00 000000000000f900 ffff880214de0000 ffff8801ef582640
> >>[82196.031902]  ffff88021e2998d8 ffffc90003c5bc80 ffffffff819322eb 0000000000000006
> >>[82196.038078]  ffff8801ef582e68 0000000003c5bc78 ffff88021e2998d8 0000000000000000
> >>[82196.044255] Call Trace:
> >>[82196.045430]  [<ffffffff819322eb>] ? __schedule+0x2fb/0xb30
> >>[82196.049645]  [<ffffffff81932b58>] schedule+0x38/0x90
> >>[82196.053337]  [<ffffffff81932f20>] schedule_preempt_disabled+0x10/0x20
> >>[82196.058860]  [<ffffffff81934b15>] mutex_lock_nested+0x175/0x3f0
> >>[82196.063507]  [<ffffffff81842df6>] ? rtnetlink_rcv+0x16/0x30
> >>[82196.067811]  [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>[82196.071936]  [<ffffffff8186c76d>] netlink_unicast+0x1cd/0x2e0
> >>[82196.076409]  [<ffffffff8186c6e9>] ? netlink_unicast+0x149/0x2e0
> >>[82196.081054]  [<ffffffff8186cb62>] netlink_sendmsg+0x2e2/0x390
> >>[82196.085526]  [<ffffffff812dcb98>] ? __fget+0x108/0x1f0
> >>[82196.089746]  [<ffffffff8180ca73>] sock_sendmsg+0x33/0x40
> >>[82196.093785]  [<ffffffff8180d041>] SYSC_sendto+0x101/0x190
> >>[82196.097909]  [<ffffffff813ea076>] ? security_file_permission+0x96/0xb0
> >>[82196.103166]  [<ffffffff812ba7e9>] ? rw_verify_area+0x49/0xb0
> >>[82196.107553]  [<ffffffff811771d9>] ? trace_hardirqs_on_caller+0x129/0x1b0
> >>[82196.112985]  [<ffffffff8100301a>] ? trace_hardirqs_on_thunk+0x1a/0x1c
> >>[82196.118162]  [<ffffffff8180dee9>] SyS_sendto+0x9/0x10
> >>[82196.122314]  [<ffffffff81939f45>] entry_SYSCALL_64_fastpath+0x23/0xc6
> >>[82196.127481]
> >>Showing all locks held in the system:
> >>[82196.131118] 2 locks held by khungtaskd/37:
> >>[82196.133939]  #0:
> >>[82196.134391]  (
> >>[82196.134785] rcu_read_lock
> >>[82196.135930] ){......}
> >>[82196.136935] , at:
> >>[82196.137478] [<ffffffff811ebd5c>] watchdog+0x9c/0x600
> >>[82196.141176]  #1:
> >>[82196.141628]  (
> >>[82196.142022] tasklist_lock
> >>[82196.143166] ){.+.+..}
> >>[82196.144172] , at:
> >>[82196.144710] [<ffffffff8117576d>] debug_show_all_locks+0x3d/0x1a0
> >>[82196.149456] 2 locks held by agetty/1149:
> >>[82196.152104]  #0:
> >>[82196.152555]  (
> >>[82196.152951] &tty->ldisc_sem
> >>[82196.154268] ){++++.+}
> >>[82196.155273] , at:
> >>[82196.155807] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
> >>[82196.160025]  #1:
> >>[82196.160477]  (
> >>[82196.160871] &ldata->atomic_read_lock
> >>[82196.162970] ){+.+...}
> >>[82196.163975] , at:
> >>[82196.164513] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
> >>[82196.168388] 1 lock held by mission-control/1506:
> >>[82196.171732]  #0:
> >>[82196.172177]  (
> >>[82196.172575] rtnl_mutex
> >>[82196.173459] ){+.+.+.}
> >>[82196.174463] , at:
> >>[82196.174999] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>[82196.179044] 2 locks held by bash/1691:
> >>[82196.181517]  #0:
> >>[82196.181964]  (
> >>[82196.182361] &tty->ldisc_sem
> >>[82196.183677] ){++++.+}
> >>[82196.184681] , at:
> >>[82196.185217] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
> >>[82196.189434]  #1:
> >>[82196.189881]  (
> >>[82196.190306] &ldata->atomic_read_lock
> >>[82196.192407] ){+.+...}
> >>[82196.193409] , at:
> >>[82196.193942] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
> >>[82196.197820] 1 lock held by evolution-calen/1768:
> >>[82196.201163]  #0:
> >>[82196.201612]  (
> >>[82196.202008] rtnl_mutex
> >>[82196.202889] ){+.+.+.}
> >>[82196.203890] , at:
> >>[82196.204428] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>[82196.208476] 2 locks held by hostapd/4100:
> >>[82196.211211]  #0:
> >>[82196.211661]  (
> >>[82196.212054] cb_lock
> >>[82196.212678] ){++++++}
> >>[82196.213681] , at:
> >>[82196.214214] [<ffffffff8186d494>] genl_rcv+0x14/0x40
> >>[82196.217824]  #1:
> >>[82196.218276]  (
> >>[82196.218667] genl_mutex
> >>[82196.219551] ){+.+.+.}
> >>[82196.220578] , at:
> >>[82196.221112] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82196.225075] 2 locks held by hostapd/4392:
> >>[82196.227814]  #0:
> >>[82196.228270]  (
> >>[82196.228664] cb_lock
> >>[82196.229289] ){++++++}
> >>[82196.230297] , at:
> >>[82196.230833] [<ffffffff8186d494>] genl_rcv+0x14/0x40
> >>[82196.234443]  #1:
> >>[82196.234891]  (
> >>[82196.235291] genl_mutex
> >>[82196.236171] ){+.+.+.}
> >>[82196.237176] , at:
> >>[82196.237711] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82196.241666] 3 locks held by wpa_supplicant/4574:
> >>[82196.245011]  #0:
> >>[82196.245463]  (
> >>[82196.245854] cb_lock
> >>[82196.246479] ){++++++}
> >>[82196.247483] , at:
> >>[82196.248016] [<ffffffff8186d494>] genl_rcv+0x14/0x40
> >>[82196.251627]  #1:
> >>[82196.252072]  (
> >>[82196.252471] genl_mutex
> >>[82196.253360] ){+.+.+.}
> >>[82196.254365] , at:
> >>[82196.254899] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82196.258856]  #2:
> >>[82196.259308]  (
> >>[82196.259704] rtnl_mutex
> >>[82196.260588] ){+.+.+.}
> >>[82196.261592] , at:
> >>[82196.262125] [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82196.265826] 2 locks held by hostapd/4733:
> >>[82196.268561]  #0:
> >>[82196.269006]  (
> >>[82196.269405] cb_lock
> >>[82196.270024] ){++++++}
> >>[82196.271032] , at:
> >>[82196.271572] [<ffffffff8186d494>] genl_rcv+0x14/0x40
> >>[82196.275181]  #1:
> >>[82196.275630]  (
> >>[82196.276021] genl_mutex
> >>[82196.276905] ){+.+.+.}
> >>[82196.277908] , at:
> >>[82196.278445] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82196.282403] 2 locks held by bash/5322:
> >>[82196.284879]  #0:
> >>[82196.285328]  (
> >>[82196.285719] &tty->ldisc_sem
> >>[82196.287038] ){++++.+}
> >>[82196.288042] , at:
> >>[82196.288580] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
> >>[82196.292798]  #1:
> >>[82196.293245]  (
> >>[82196.293641] &ldata->atomic_read_lock
> >>[82196.295741] ){+.+...}
> >>[82196.296743] , at:
> >>[82196.297283] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
> >>[82196.301151] 2 locks held by bash/24789:
> >>[82196.303712]  #0:
> >>[82196.304156]  (
> >>[82196.304552] &tty->ldisc_sem
> >>[82196.305869] ){++++.+}
> >>[82196.306875] , at:
> >>[82196.307413] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
> >>[82196.311631]  #1:
> >>[82196.312078]  (
> >>[82196.313123] &ldata->atomic_read_lock
> >>[82196.315221] ){+.+...}
> >>[82196.316227] , at:
> >>[82196.316765] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
> >>[82196.320638] 5 locks held by kworker/u8:1/1965:
> >>[82196.323806]  #0:
> >>[82196.324250]  (
> >>[82196.324651] "%s"wiphy_name(local->hw.wiphy)
> >>[82196.327365] ){++++.+}
> >>[82196.328367] , at:
> >>[82196.328902] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82196.333378]  #1:
> >>[82196.333822]  (
> >>[82196.334219] (&sdata->work)
> >>[82196.335449] ){+.+.+.}
> >>[82196.336453] , at:
> >>[82196.336986] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82196.341464]  #2:
> >>[82196.341913]  (
> >>[82196.342312] &wdev->mtx
> >>[82196.343191] ){+.+.+.}
> >>[82196.344196] , at:
> >>[82196.344784] [<ffffffffa0e65557>] ieee80211_sta_work+0x47/0x1b50 [mac80211]
> >>[82196.350397]  #3:
> >>[82196.350844]  (
> >>[82196.351238] &local->sta_mtx
> >>[82196.352558] ){+.+.+.}
> >>[82196.353560] , at:
> >>[82196.354107] [<ffffffffa0dffae6>] __sta_info_flush+0x86/0x190 [mac80211]
> >>[82196.359455]  #4:
> >>[82196.359900]  (
> >>[82196.360300] &ar->conf_mutex
> >>[82196.361617] ){+.+.+.}
> >>[82196.362621] , at:
> >>[82196.363162] [<ffffffffa12a3165>] ath10k_sta_state+0x205/0xbd0 [ath10k_core]
> >>[82196.368860] 3 locks held by kworker/u8:3/2064:
> >>[82196.372030]  #0:
> >>[82196.372479]  (
> >>[82196.372873] "%s""ath10k_wq"
> >>[82196.374192] ){.+.+.+}
> >>[82196.375196] , at:
> >>[82196.375734] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82196.380221]  #1:
> >>[82196.380674]  (
> >>[82196.381068] (&(&ar->debug.nop_dwork)->work)
> >>[82196.383774] ){+.+...}
> >>[82196.384778] , at:
> >>[82196.385316] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82196.389793]  #2:
> >>[82196.390240]  (
> >>[82196.390635] &ar->conf_mutex
> >>[82196.391954] ){+.+.+.}
> >>[82196.392959] , at:
> >>[82196.393510] [<ffffffffa12acbb4>] ath10k_debug_nop_dwork+0x24/0x80 [ath10k_core]
> >>[82196.399551] 4 locks held by kworker/0:2/2149:
> >>[82196.402635]  #0:
> >>[82196.403080]  (
> >>[82196.403480] "events_freezable"
> >>[82196.405057] ){.+.+..}
> >>[82196.406062] , at:
> >>[82196.406601] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82196.411079]  #1:
> >>[82196.411531]  (
> >>[82196.411925] (&local->restart_work)
> >>[82196.413853] ){+.+...}
> >>[82196.414858] , at:
> >>[82196.415397] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82196.419874]  #2:
> >>[82196.420327]  (
> >>[82196.420720] rtnl_mutex
> >>[82196.421606] ){+.+.+.}
> >>[82196.422611] , at:
> >>[82196.423145] [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82196.426841]  #3:
> >>[82196.427290]  (
> >>[82196.427686] &ar->conf_mutex
> >>[82196.429008] ){+.+.+.}
> >>[82196.430012] , at:
> >>[82196.430555] [<ffffffffa12a8686>] ath10k_start+0x26/0x5d0 [ath10k_core]
> >>[82196.435814] 3 locks held by kworker/3:3/2153:
> >>[82196.438895]  #0:
> >>[82196.439345]  (
> >>[82196.439741] "events"
> >>[82196.440449] ){.+.+.+}
> >>[82196.441455] , at:
> >>[82196.441989] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82196.446468]  #1:
> >>[82196.446916]  (
> >>[82196.447315] (linkwatch_work).work
> >>[82196.449154] ){+.+.+.}
> >>[82196.450156] , at:
> >>[82196.450694] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82196.455171]  #2:
> >>[82196.455626]  (
> >>[82196.456020] rtnl_mutex
> >>[82196.456903] ){+.+.+.}
> >>[82196.457908] , at:
> >>[82196.458446] [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82196.462143] 3 locks held by kworker/2:2/2984:
> >>[82196.465225]  #0:
> >>[82196.465676]  (
> >>[82196.466069] "%s"("ipv6_addrconf")
> >>[82196.467909] ){.+.+..}
> >>[82196.468916] , at:
> >>[82196.469454] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82196.473931]  #1:
> >>[82196.474385]  (
> >>[82196.474778] (addr_chk_work).work
> >>[82196.476529] ){+.+...}
> >>[82196.477534] , at:
> >>[82196.478067] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82196.482547]  #2:
> >>[82196.482994]  (
> >>[82196.483392] rtnl_mutex
> >>[82196.484272] ){+.+.+.}
> >>[82196.485279] , at:
> >>[82196.485820] [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82196.489517] 1 lock held by ip/3840:
> >>[82196.491731]  #0:
> >>[82196.492175]  (
> >>[82196.492574] rtnl_mutex
> >>[82196.493458] ){+.+.+.}
> >>[82196.494463] , at:
> >>[82196.494996] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>[82196.499043] 1 lock held by ip/3843:
> >>[82196.501257]  #0:
> >>[82196.501708]  (
> >>[82196.502105] rtnl_mutex
> >>[82196.502987] ){+.+.+.}
> >>[82196.503991] , at:
> >>[82196.504530] [<ffffffff8186959e>] netlink_dump+0x1e/0x290
> >>[82196.508573] 1 lock held by ip/3845:
> >>[82196.510794]  #0:
> >>[82196.511242]  (
> >>[82196.511641] rtnl_mutex
> >>[82196.512525] ){+.+.+.}
> >>[82196.513530] , at:
> >>[82196.514064] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>
> >>[82196.518327] =============================================
> >>
> >>[82196.522664] INFO: task hostapd:4100 blocked for more than 180 seconds.
> >>[82196.527934]       Tainted: G        W       4.9.0-rc6+ #9
> >>[82196.532058] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> >>[82196.538618] hostapd         D    0  4100      1 0x00000000
> >>[82196.542867]  ffff8802114d6900 0000000000004d8e ffffffff81e11580 ffff880211e04c80
> >>[82196.549068]  ffff88021e2198d8 ffffc900099ffb40 ffffffff819322eb 0000000000000006
> >>[82196.555252]  ffff880211e054a8 00000000099ffb38 ffff88021e2198d8 0000000000000000
> >>[82196.561441] Call Trace:
> >>[82196.562618]  [<ffffffff819322eb>] ? __schedule+0x2fb/0xb30
> >>[82196.566831]  [<ffffffff81932b58>] schedule+0x38/0x90
> >>[82196.570522]  [<ffffffff81932f20>] schedule_preempt_disabled+0x10/0x20
> >>[82196.575710]  [<ffffffff81934b15>] mutex_lock_nested+0x175/0x3f0
> >>[82196.580356]  [<ffffffff8186d8d4>] ? genl_rcv_msg+0xa4/0xb0
> >>[82196.584574]  [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82196.588613]  [<ffffffff8186d830>] ? genl_family_rcv_msg+0x370/0x370
> >>[82196.593636]  [<ffffffff8186cddf>] netlink_rcv_skb+0x9f/0xc0
> >>[82196.597937]  [<ffffffff8186d4a3>] genl_rcv+0x23/0x40
> >>[82196.601629]  [<ffffffff8186c76d>] netlink_unicast+0x1cd/0x2e0
> >>[82196.606099]  [<ffffffff8186c6e9>] ? netlink_unicast+0x149/0x2e0
> >>[82196.610746]  [<ffffffff8186cb62>] netlink_sendmsg+0x2e2/0x390
> >>[82196.615237]  [<ffffffff8180ca73>] sock_sendmsg+0x33/0x40
> >>[82196.619298]  [<ffffffff8180d55b>] ___sys_sendmsg+0x2db/0x2f0
> >>[82196.623685]  [<ffffffff81172eba>] ? up_write+0x1a/0x40
> >>[82196.627556]  [<ffffffff81357048>] ? ext4_file_write_iter+0x88/0x340
> >>[82196.632565]  [<ffffffff81195c0d>] ? debug_lockdep_rcu_enabled+0x1d/0x20
> >>[82196.637908]  [<ffffffff8180e170>] __sys_sendmsg+0x40/0x70
> >>[82196.642034]  [<ffffffff8180e1ad>] SyS_sendmsg+0xd/0x20
> >>[82196.645900]  [<ffffffff81939f45>] entry_SYSCALL_64_fastpath+0x23/0xc6
> >>[82196.651066]
> >>Showing all locks held in the system:
> >>[82196.654718] 2 locks held by khungtaskd/37:
> >>[82196.657540]  #0:
> >>[82196.657985]  (
> >>[82196.658385] rcu_read_lock
> >>[82196.659530] ){......}
> >>[82196.660534] , at:
> >>[82196.661069] [<ffffffff811ebd5c>] watchdog+0x9c/0x600
> >>[82196.664770]  #1:
> >>[82196.665219]  (
> >>[82196.665617] tasklist_lock
> >>[82196.666760] ){.+.+..}
> >>[82196.667766] , at:
> >>[82196.668306] [<ffffffff8117576d>] debug_show_all_locks+0x3d/0x1a0
> >>[82196.673057] 2 locks held by agetty/1149:
> >>[82196.675706]  #0:
> >>[82196.676168]  (
> >>[82196.676586] &tty->ldisc_sem
> >>[82196.677905] ){++++.+}
> >>[82196.678911] , at:
> >>[82196.679450] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
> >>[82196.683669]  #1:
> >>[82196.684114]  (
> >>[82196.684511] &ldata->atomic_read_lock
> >>[82196.686613] ){+.+...}
> >>[82196.687616] , at:
> >>[82196.688150] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
> >>[82196.692028] 1 lock held by mission-control/1506:
> >>[82196.695369]  #0:
> >>[82196.695814]  (
> >>[82196.696211] rtnl_mutex
> >>[82196.697092] ){+.+.+.}
> >>[82196.698093] , at:
> >>[82196.698633] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>[82196.702680] 2 locks held by bash/1691:
> >>[82196.705156]  #0:
> >>[82196.705607]  (
> >>[82196.706003] &tty->ldisc_sem
> >>[82196.707326] ){++++.+}
> >>[82196.708330] , at:
> >>[82196.708864] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
> >>[82196.713106]  #1:
> >>[82196.713576]  (
> >>[82196.713970] &ldata->atomic_read_lock
> >>[82196.716070] ){+.+...}
> >>[82196.717074] , at:
> >>[82196.717612] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
> >>[82196.721500] 1 lock held by evolution-calen/1768:
> >>[82196.724845]  #0:
> >>[82196.725293]  (
> >>[82196.725692] rtnl_mutex
> >>[82196.726576] ){+.+.+.}
> >>[82196.727580] , at:
> >>[82196.728117] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>[82196.732162] 2 locks held by hostapd/4100:
> >>[82196.734897]  #0:
> >>[82196.735347]  (
> >>[82196.735742] cb_lock
> >>[82196.736364] ){++++++}
> >>[82196.737364] , at:
> >>[82196.737900] [<ffffffff8186d494>] genl_rcv+0x14/0x40
> >>[82196.741517]  #1:
> >>[82196.741964]  (
> >>[82196.742363] genl_mutex
> >>[82196.743243] ){+.+.+.}
> >>[82196.744248] , at:
> >>[82196.744785] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82196.748743] 2 locks held by hostapd/4392:
> >>[82196.751478]  #0:
> >>[82196.751925]  (
> >>[82196.752330] cb_lock
> >>[82196.752947] ){++++++}
> >>[82196.753960] , at:
> >>[82196.754499] [<ffffffff8186d494>] genl_rcv+0x14/0x40
> >>[82196.758107]  #1:
> >>[82196.758559]  (
> >>[82196.758950] genl_mutex
> >>[82196.759833] ){+.+.+.}
> >>[82196.760839] , at:
> >>[82196.761376] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82196.765335] 3 locks held by wpa_supplicant/4574:
> >>[82196.768678]  #0:
> >>[82196.769123]  (
> >>[82196.769518] cb_lock
> >>[82196.770137] ){++++++}
> >>[82196.771139] , at:
> >>[82196.771676] [<ffffffff8186d494>] genl_rcv+0x14/0x40
> >>[82196.775285]  #1:
> >>[82196.775736]  (
> >>[82196.776133] genl_mutex
> >>[82196.777026] ){+.+.+.}
> >>[82196.778027] , at:
> >>[82196.778573] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82196.782527]  #2:
> >>[82196.782972]  (
> >>[82196.783367] rtnl_mutex
> >>[82196.784247] ){+.+.+.}
> >>[82196.785254] , at:
> >>[82196.785793] [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82196.789491] 2 locks held by hostapd/4733:
> >>[82196.792224]  #0:
> >>[82196.792673]  (
> >>[82196.793067] cb_lock
> >>[82196.793687] ){++++++}
> >>[82196.794688] , at:
> >>[82196.795224] [<ffffffff8186d494>] genl_rcv+0x14/0x40
> >>[82196.798834]  #1:
> >>[82196.799278]  (
> >>[82196.799679] genl_mutex
> >>[82196.800560] ){+.+.+.}
> >>[82196.801560] , at:
> >>[82196.802096] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82196.806053] 2 locks held by bash/5322:
> >>[82196.808524]  #0:
> >>[82196.808971]  (
> >>[82196.809365] &tty->ldisc_sem
> >>[82196.810684] ){++++.+}
> >>[82196.811687] , at:
> >>[82196.812224] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
> >>[82196.816440]  #1:
> >>[82196.816888]  (
> >>[82196.817278] &ldata->atomic_read_lock
> >>[82196.819377] ){+.+...}
> >>[82196.820380] , at:
> >>[82196.820917] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
> >>[82196.824787] 2 locks held by bash/24789:
> >>[82196.827352]  #0:
> >>[82196.827800]  (
> >>[82196.828196] &tty->ldisc_sem
> >>[82196.829512] ){++++.+}
> >>[82196.830516] , at:
> >>[82196.831050] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
> >>[82196.835268]  #1:
> >>[82196.835719]  (
> >>[82196.836112] &ldata->atomic_read_lock
> >>[82196.838209] ){+.+...}
> >>[82196.839214] , at:
> >>[82196.839751] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
> >>[82196.844271] 5 locks held by kworker/u8:1/1965:
> >>[82196.847439]  #0:
> >>[82196.847884]  (
> >>[82196.848280] "%s"wiphy_name(local->hw.wiphy)
> >>[82196.850986] ){++++.+}
> >>[82196.851987] , at:
> >>[82196.852525] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82196.857004]  #1:
> >>[82196.857456]  (
> >>[82196.857852] (&sdata->work)
> >>[82196.859082] ){+.+.+.}
> >>[82196.860086] , at:
> >>[82196.860624] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82196.865102]  #2:
> >>[82196.865554]  (
> >>[82196.865945] &wdev->mtx
> >>[82196.866829] ){+.+.+.}
> >>[82196.867833] , at:
> >>[82196.868406] [<ffffffffa0e65557>] ieee80211_sta_work+0x47/0x1b50 [mac80211]
> >>[82196.874011]  #3:
> >>[82196.874463]  (
> >>[82196.874854] &local->sta_mtx
> >>[82196.876172] ){+.+.+.}
> >>[82196.877176] , at:
> >>[82196.877728] [<ffffffffa0dffae6>] __sta_info_flush+0x86/0x190 [mac80211]
> >>[82196.883073]  #4:
> >>[82196.883524]  (
> >>[82196.883915] &ar->conf_mutex
> >>[82196.885234] ){+.+.+.}
> >>[82196.886237] , at:
> >>[82196.886785] [<ffffffffa12a3165>] ath10k_sta_state+0x205/0xbd0 [ath10k_core]
> >>[82196.892478] 3 locks held by kworker/u8:3/2064:
> >>[82196.895645]  #0:
> >>[82196.896092]  (
> >>[82196.896490] "%s""ath10k_wq"
> >>[82196.897807] ){.+.+.+}
> >>[82196.898811] , at:
> >>[82196.899351] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82196.903827]  #1:
> >>[82196.904272]  (
> >>[82196.904667] (&(&ar->debug.nop_dwork)->work)
> >>[82196.907377] ){+.+...}
> >>[82196.908379] , at:
> >>[82196.908916] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82196.913391]  #2:
> >>[82196.913835]  (
> >>[82196.914231] &ar->conf_mutex
> >>[82196.915548] ){+.+.+.}
> >>[82196.916552] , at:
> >>[82196.917093] [<ffffffffa12acbb4>] ath10k_debug_nop_dwork+0x24/0x80 [ath10k_core]
> >>[82196.923133] 4 locks held by kworker/0:2/2149:
> >>[82196.926216]  #0:
> >>[82196.926666]  (
> >>[82196.927057] "events_freezable"
> >>[82196.928635] ){.+.+..}
> >>[82196.929639] , at:
> >>[82196.930172] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82196.934651]  #1:
> >>[82196.935098]  (
> >>[82196.935498] (&local->restart_work)
> >>[82196.937423] ){+.+...}
> >>[82196.938427] , at:
> >>[82196.938960] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82196.943457]  #2:
> >>[82196.943904]  (
> >>[82196.944297] rtnl_mutex
> >>[82196.945182] ){+.+.+.}
> >>[82196.946188] , at:
> >>[82196.946726] [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82196.950419]  #3:
> >>[82196.950866]  (
> >>[82196.951257] &ar->conf_mutex
> >>[82196.952575] ){+.+.+.}
> >>[82196.953580] , at:
> >>[82196.954118] [<ffffffffa12a8686>] ath10k_start+0x26/0x5d0 [ath10k_core]
> >>[82196.959380] 3 locks held by kworker/3:3/2153:
> >>[82196.962463]  #0:
> >>[82196.962908]  (
> >>[82196.963299] "events"
> >>[82196.964010] ){.+.+.+}
> >>[82196.965014] , at:
> >>[82196.965554] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82196.970029]  #1:
> >>[82196.970478]  (
> >>[82196.970872] (linkwatch_work).work
> >>[82196.972713] ){+.+.+.}
> >>[82196.973716] , at:
> >>[82196.974250] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82196.978727]  #2:
> >>[82196.979172]  (
> >>[82196.979569] rtnl_mutex
> >>[82196.980456] ){+.+.+.}
> >>[82196.981459] , at:
> >>[82196.981993] [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82196.985692] 3 locks held by kworker/2:2/2984:
> >>[82196.988776]  #0:
> >>[82196.989221]  (
> >>[82196.989618] "%s"("ipv6_addrconf")
> >>[82196.991457] ){.+.+..}
> >>[82196.992460] , at:
> >>[82196.992996] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82196.997474]  #1:
> >>[82196.997921]  (
> >>[82196.998318] (addr_chk_work).work
> >>[82197.000069] ){+.+...}
> >>[82197.001073] , at:
> >>[82197.001610] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82197.006086]  #2:
> >>[82197.006535]  (
> >>[82197.006926] rtnl_mutex
> >>[82197.007811] ){+.+.+.}
> >>[82197.008814] , at:
> >>[82197.009355] [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82197.013051] 1 lock held by ip/3840:
> >>[82197.015265]  #0:
> >>[82197.015716]  (
> >>[82197.016110] rtnl_mutex
> >>[82197.016997] ){+.+.+.}
> >>[82197.018000] , at:
> >>[82197.018540] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>[82197.022583] 1 lock held by ip/3843:
> >>[82197.024794]  #0:
> >>[82197.025241]  (
> >>[82197.025636] rtnl_mutex
> >>[82197.026519] ){+.+.+.}
> >>[82197.027521] , at:
> >>[82197.028057] [<ffffffff8186959e>] netlink_dump+0x1e/0x290
> >>[82197.032098] 1 lock held by ip/3845:
> >>[82197.034322]  #0:
> >>[82197.034772]  (
> >>[82197.035165] rtnl_mutex
> >>[82197.036049] ){+.+.+.}
> >>[82197.037050] , at:
> >>[82197.037587] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>
> >>[82197.041839] =============================================
> >>
> >>[82197.046175] INFO: task hostapd:4392 blocked for more than 180 seconds.
> >>[82197.051436]       Tainted: G        W       4.9.0-rc6+ #9
> >>[82197.055562] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> >>[82197.062118] hostapd         D    0  4392      1 0x00000000
> >>[82197.066349]  ffff8802114d2800 0000000000000249 ffff880214de0000 ffff8801ed8f8000
> >>[82197.072535]  ffff88021e2998d8 ffffc90009e6bb40 ffffffff819322eb 0000000000000006
> >>[82197.078711]  ffff8801ed8f8828 0000000009e6bb38 ffff88021e2998d8 0000000000000000
> >>[82197.084886] Call Trace:
> >>[82197.086083]  [<ffffffff819322eb>] ? __schedule+0x2fb/0xb30
> >>[82197.090669]  [<ffffffff81932b58>] schedule+0x38/0x90
> >>[82197.094362]  [<ffffffff81932f20>] schedule_preempt_disabled+0x10/0x20
> >>[82197.099528]  [<ffffffff81934b15>] mutex_lock_nested+0x175/0x3f0
> >>[82197.104173]  [<ffffffff8186d8d4>] ? genl_rcv_msg+0xa4/0xb0
> >>[82197.108390]  [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82197.112429]  [<ffffffff8186d830>] ? genl_family_rcv_msg+0x370/0x370
> >>[82197.117424]  [<ffffffff8186cddf>] netlink_rcv_skb+0x9f/0xc0
> >>[82197.121722]  [<ffffffff8186d4a3>] genl_rcv+0x23/0x40
> >>[82197.125412]  [<ffffffff8186c76d>] netlink_unicast+0x1cd/0x2e0
> >>[82197.129887]  [<ffffffff8186c6e9>] ? netlink_unicast+0x149/0x2e0
> >>[82197.134535]  [<ffffffff8186cb62>] netlink_sendmsg+0x2e2/0x390
> >>[82197.139378]  [<ffffffff8180ca73>] sock_sendmsg+0x33/0x40
> >>[82197.143418]  [<ffffffff8180d55b>] ___sys_sendmsg+0x2db/0x2f0
> >>[82197.147805]  [<ffffffff81172eba>] ? up_write+0x1a/0x40
> >>[82197.151679]  [<ffffffff81357048>] ? ext4_file_write_iter+0x88/0x340
> >>[82197.156677]  [<ffffffff81195c0d>] ? debug_lockdep_rcu_enabled+0x1d/0x20
> >>[82197.162018]  [<ffffffff8180e170>] __sys_sendmsg+0x40/0x70
> >>[82197.166147]  [<ffffffff8180e1ad>] SyS_sendmsg+0xd/0x20
> >>[82197.170011]  [<ffffffff81939f45>] entry_SYSCALL_64_fastpath+0x23/0xc6
> >>[82197.175176]
> >>Showing all locks held in the system:
> >>[82197.178808] 2 locks held by khungtaskd/37:
> >>[82197.181630]  #0:
> >>[82197.182078]  (
> >>[82197.182473] rcu_read_lock
> >>[82197.183618] ){......}
> >>[82197.184622] , at:
> >>[82197.185159] [<ffffffff811ebd5c>] watchdog+0x9c/0x600
> >>[82197.188863]  #1:
> >>[82197.189311]  (
> >>[82197.189711] tasklist_lock
> >>[82197.190855] ){.+.+..}
> >>[82197.191859] , at:
> >>[82197.192397] [<ffffffff8117576d>] debug_show_all_locks+0x3d/0x1a0
> >>[82197.197144] 2 locks held by agetty/1149:
> >>[82197.199793]  #0:
> >>[82197.200240]  (
> >>[82197.200638] &tty->ldisc_sem
> >>[82197.201957] ){++++.+}
> >>[82197.202961] , at:
> >>[82197.203499] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
> >>[82197.207717]  #1:
> >>[82197.208164]  (
> >>[82197.208560] &ldata->atomic_read_lock
> >>[82197.210659] ){+.+...}
> >>[82197.211661] , at:
> >>[82197.212195] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
> >>[82197.216074] 1 lock held by mission-control/1506:
> >>[82197.219419]  #0:
> >>[82197.219863]  (
> >>[82197.220254] rtnl_mutex
> >>[82197.221139] ){+.+.+.}
> >>[82197.222143] , at:
> >>[82197.222683] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>[82197.226726] 2 locks held by bash/1691:
> >>[82197.229202]  #0:
> >>[82197.229651]  (
> >>[82197.230043] &tty->ldisc_sem
> >>[82197.231363] ){++++.+}
> >>[82197.232368] , at:
> >>[82197.232905] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
> >>[82197.237130]  #1:
> >>[82197.237579]  (
> >>[82197.237974] &ldata->atomic_read_lock
> >>[82197.240073] ){+.+...}
> >>[82197.241077] , at:
> >>[82197.241615] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
> >>[82197.245485] 1 lock held by evolution-calen/1768:
> >>[82197.248828]  #0:
> >>[82197.249273]  (
> >>[82197.249668] rtnl_mutex
> >>[82197.250552] ){+.+.+.}
> >>[82197.251557] , at:
> >>[82197.252090] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>[82197.256139] 2 locks held by hostapd/4100:
> >>[82197.258872]  #0:
> >>[82197.259317]  (
> >>[82197.259713] cb_lock
> >>[82197.260333] ){++++++}
> >>[82197.261338] , at:
> >>[82197.261875] [<ffffffff8186d494>] genl_rcv+0x14/0x40
> >>[82197.265486]  #1:
> >>[82197.265934]  (
> >>[82197.266334] genl_mutex
> >>[82197.267221] ){+.+.+.}
> >>[82197.268228] , at:
> >>[82197.268766] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82197.272723] 2 locks held by hostapd/4392:
> >>[82197.275459]  #0:
> >>[82197.275907]  (
> >>[82197.276308] cb_lock
> >>[82197.276933] ){++++++}
> >>[82197.277937] , at:
> >>[82197.278477] [<ffffffff8186d494>] genl_rcv+0x14/0x40
> >>[82197.282085]  #1:
> >>[82197.282535]  (
> >>[82197.282926] genl_mutex
> >>[82197.283809] ){+.+.+.}
> >>[82197.284816] , at:
> >>[82197.285349] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82197.289315] 3 locks held by wpa_supplicant/4574:
> >>[82197.292662]  #0:
> >>[82197.293109]  (
> >>[82197.293507] cb_lock
> >>[82197.294127] ){++++++}
> >>[82197.295134] , at:
> >>[82197.295675] [<ffffffff8186d494>] genl_rcv+0x14/0x40
> >>[82197.299283]  #1:
> >>[82197.299733]  (
> >>[82197.300124] genl_mutex
> >>[82197.301014] ){+.+.+.}
> >>[82197.302019] , at:
> >>[82197.302557] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82197.306511]  #2:
> >>[82197.306958]  (
> >>[82197.307359] rtnl_mutex
> >>[82197.308240] ){+.+.+.}
> >>[82197.309248] , at:
> >>[82197.309788] [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82197.313486] 2 locks held by hostapd/4733:
> >>[82197.316221]  #0:
> >>[82197.316672]  (
> >>[82197.317068] cb_lock
> >>[82197.317690] ){++++++}
> >>[82197.318692] , at:
> >>[82197.319225] [<ffffffff8186d494>] genl_rcv+0x14/0x40
> >>[82197.322835]  #1:
> >>[82197.323280]  (
> >>[82197.323676] genl_mutex
> >>[82197.324559] ){+.+.+.}
> >>[82197.325566] , at:
> >>[82197.326099] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82197.330059] 2 locks held by bash/5322:
> >>[82197.332533]  #0:
> >>[82197.332978]  (
> >>[82197.333379] &tty->ldisc_sem
> >>[82197.334698] ){++++.+}
> >>[82197.335699] , at:
> >>[82197.336235] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
> >>[82197.340455]  #1:
> >>[82197.340903]  (
> >>[82197.341294] &ldata->atomic_read_lock
> >>[82197.343393] ){+.+...}
> >>[82197.344398] , at:
> >>[82197.344932] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
> >>[82197.348804] 2 locks held by bash/24789:
> >>[82197.351369]  #0:
> >>[82197.351815]  (
> >>[82197.352211] &tty->ldisc_sem
> >>[82197.353529] ){++++.+}
> >>[82197.354531] , at:
> >>[82197.355065] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
> >>[82197.359283]  #1:
> >>[82197.359737]  (
> >>[82197.360130] &ldata->atomic_read_lock
> >>[82197.362230] ){+.+...}
> >>[82197.363234] , at:
> >>[82197.363772] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
> >>[82197.367651] 5 locks held by kworker/u8:1/1965:
> >>[82197.370825]  #0:
> >>[82197.371272]  (
> >>[82197.372317] "%s"wiphy_name(local->hw.wiphy)
> >>[82197.375026] ){++++.+}
> >>[82197.376030] , at:
> >>[82197.376567] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82197.381045]  #1:
> >>[82197.381497]  (
> >>[82197.381888] (&sdata->work)
> >>[82197.383119] ){+.+.+.}
> >>[82197.384124] , at:
> >>[82197.384662] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82197.389139]  #2:
> >>[82197.389588]  (
> >>[82197.389982] &wdev->mtx
> >>[82197.390866] ){+.+.+.}
> >>[82197.391872] , at:
> >>[82197.392435] [<ffffffffa0e65557>] ieee80211_sta_work+0x47/0x1b50 [mac80211]
> >>[82197.398042]  #3:
> >>[82197.398492]  (
> >>[82197.398887] &local->sta_mtx
> >>[82197.400205] ){+.+.+.}
> >>[82197.401209] , at:
> >>[82197.401760] [<ffffffffa0dffae6>] __sta_info_flush+0x86/0x190 [mac80211]
> >>[82197.407107]  #4:
> >>[82197.407557]  (
> >>[82197.407953] &ar->conf_mutex
> >>[82197.409270] ){+.+.+.}
> >>[82197.410274] , at:
> >>[82197.410818] [<ffffffffa12a3165>] ath10k_sta_state+0x205/0xbd0 [ath10k_core]
> >>[82197.416513] 3 locks held by kworker/u8:3/2064:
> >>[82197.419684]  #0:
> >>[82197.420132]  (
> >>[82197.420533] "%s""ath10k_wq"
> >>[82197.421854] ){.+.+.+}
> >>[82197.422859] , at:
> >>[82197.423397] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82197.427874]  #1:
> >>[82197.428321]  (
> >>[82197.428717] (&(&ar->debug.nop_dwork)->work)
> >>[82197.431423] ){+.+...}
> >>[82197.432425] , at:
> >>[82197.432961] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82197.437439]  #2:
> >>[82197.437884]  (
> >>[82197.438275] &ar->conf_mutex
> >>[82197.439595] ){+.+.+.}
> >>[82197.440598] , at:
> >>[82197.441137] [<ffffffffa12acbb4>] ath10k_debug_nop_dwork+0x24/0x80 [ath10k_core]
> >>[82197.447178] 4 locks held by kworker/0:2/2149:
> >>[82197.450265]  #0:
> >>[82197.450717]  (
> >>[82197.451111] "events_freezable"
> >>[82197.452690] ){.+.+..}
> >>[82197.453694] , at:
> >>[82197.454228] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82197.458707]  #1:
> >>[82197.459152]  (
> >>[82197.459548] (&local->restart_work)
> >>[82197.461474] ){+.+...}
> >>[82197.462478] , at:
> >>[82197.463012] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82197.467488]  #2:
> >>[82197.467936]  (
> >>[82197.468330] rtnl_mutex
> >>[82197.469215] ){+.+.+.}
> >>[82197.470220] , at:
> >>[82197.470758] [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82197.474454]  #3:
> >>[82197.474899]  (
> >>[82197.475290] &ar->conf_mutex
> >>[82197.476607] ){+.+.+.}
> >>[82197.477612] , at:
> >>[82197.478152] [<ffffffffa12a8686>] ath10k_start+0x26/0x5d0 [ath10k_core]
> >>[82197.483413] 3 locks held by kworker/3:3/2153:
> >>[82197.486497]  #0:
> >>[82197.486945]  (
> >>[82197.487336] "events"
> >>[82197.488048] ){.+.+.+}
> >>[82197.489052] , at:
> >>[82197.489590] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82197.494068]  #1:
> >>[82197.494521]  (
> >>[82197.494917] (linkwatch_work).work
> >>[82197.496766] ){+.+.+.}
> >>[82197.497771] , at:
> >>[82197.498305] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82197.502782]  #2:
> >>[82197.503230]  (
> >>[82197.503626] rtnl_mutex
> >>[82197.504510] ){+.+.+.}
> >>[82197.505515] , at:
> >>[82197.506048] [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82197.509746] 3 locks held by kworker/2:2/2984:
> >>[82197.512830]  #0:
> >>[82197.513275]  (
> >>[82197.513673] "%s"("ipv6_addrconf")
> >>[82197.515513] ){.+.+..}
> >>[82197.516517] , at:
> >>[82197.517051] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82197.521531]  #1:
> >>[82197.521976]  (
> >>[82197.522372] (addr_chk_work).work
> >>[82197.524128] ){+.+...}
> >>[82197.525141] , at:
> >>[82197.525683] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82197.530160]  #2:
> >>[82197.530612]  (
> >>[82197.531005] rtnl_mutex
> >>[82197.531889] ){+.+.+.}
> >>[82197.532893] , at:
> >>[82197.533429] [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82197.537128] 1 lock held by ip/3840:
> >>[82197.539344]  #0:
> >>[82197.539794]  (
> >>[82197.540190] rtnl_mutex
> >>[82197.541072] ){+.+.+.}
> >>[82197.542078] , at:
> >>[82197.542616] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>[82197.546660] 1 lock held by ip/3843:
> >>[82197.548874]  #0:
> >>[82197.549322]  (
> >>[82197.549718] rtnl_mutex
> >>[82197.550602] ){+.+.+.}
> >>[82197.551609] , at:
> >>[82197.552147] [<ffffffff8186959e>] netlink_dump+0x1e/0x290
> >>[82197.556190] 1 lock held by ip/3845:
> >>[82197.558411]  #0:
> >>[82197.558859]  (
> >>[82197.559249] rtnl_mutex
> >>[82197.560134] ){+.+.+.}
> >>[82197.561140] , at:
> >>[82197.561679] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>
> >>[82197.565933] =============================================
> >>
> >>[82197.570269] INFO: task wpa_supplicant:4574 blocked for more than 180 seconds.
> >>[82197.576194]       Tainted: G        W       4.9.0-rc6+ #9
> >>[82197.580317] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> >>[82197.586875] wpa_supplicant  D    0  4574      1 0x00000000
> >>[82197.591104]  ffff8801ed8b1400 000000000000edfb ffff880214de0000 ffff88020f462640
> >>[82197.597301]  ffff88021e2998d8 ffffc9000a397a70 ffffffff819322eb 0000000000000006
> >>[82197.603500]  ffff88020f462e68 000000000a397a68 ffff88021e2998d8 0000000000000000
> >>[82197.609677] Call Trace:
> >>[82197.610851]  [<ffffffff819322eb>] ? __schedule+0x2fb/0xb30
> >>[82197.615062]  [<ffffffff81932b58>] schedule+0x38/0x90
> >>[82197.618753]  [<ffffffff81932f20>] schedule_preempt_disabled+0x10/0x20
> >>[82197.623922]  [<ffffffff81934b15>] mutex_lock_nested+0x175/0x3f0
> >>[82197.628568]  [<ffffffff81841882>] ? rtnl_lock+0x12/0x20
> >>[82197.632525]  [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82197.636334]  [<ffffffffa06d5f22>] nl80211_pre_doit+0xd2/0x1b0 [cfg80211]
> >>[82197.641780]  [<ffffffff8186d63c>] genl_family_rcv_msg+0x17c/0x370
> >>[82197.646600]  [<ffffffff8117726d>] ? trace_hardirqs_on+0xd/0x10
> >>[82197.651156]  [<ffffffff8186d8a8>] genl_rcv_msg+0x78/0xb0
> >>[82197.655194]  [<ffffffff8186d830>] ? genl_family_rcv_msg+0x370/0x370
> >>[82197.660189]  [<ffffffff8186cddf>] netlink_rcv_skb+0x9f/0xc0
> >>[82197.664486]  [<ffffffff8186d4a3>] genl_rcv+0x23/0x40
> >>[82197.668176]  [<ffffffff8186c76d>] netlink_unicast+0x1cd/0x2e0
> >>[82197.672662]  [<ffffffff8186c6e9>] ? netlink_unicast+0x149/0x2e0
> >>[82197.677311]  [<ffffffff8186cb62>] netlink_sendmsg+0x2e2/0x390
> >>[82197.681786]  [<ffffffff8180ca73>] sock_sendmsg+0x33/0x40
> >>[82197.685827]  [<ffffffff8180d55b>] ___sys_sendmsg+0x2db/0x2f0
> >>[82197.690216]  [<ffffffff81195c0d>] ? debug_lockdep_rcu_enabled+0x1d/0x20
> >>[82197.695557]  [<ffffffff812685ae>] ? __might_fault+0x3e/0x90
> >>[82197.699876]  [<ffffffff812685ae>] ? __might_fault+0x3e/0x90
> >>[82197.704175]  [<ffffffff81904e87>] ? unix_ioctl+0x77/0x80
> >>[82197.708215]  [<ffffffff8180a480>] ? sock_do_ioctl+0x20/0x50
> >>[82197.712517]  [<ffffffff8180ab38>] ? sock_ioctl+0x208/0x2d0
> >>[82197.716728]  [<ffffffff8180e170>] __sys_sendmsg+0x40/0x70
> >>[82197.720853]  [<ffffffff8180e1ad>] SyS_sendmsg+0xd/0x20
> >>[82197.724720]  [<ffffffff81939f45>] entry_SYSCALL_64_fastpath+0x23/0xc6
> >>[82197.729888]
> >>Showing all locks held in the system:
> >>[82197.733521] 2 locks held by khungtaskd/37:
> >>[82197.736345]  #0:
> >>[82197.736795]  (
> >>[82197.737190] rcu_read_lock
> >>[82197.738334] ){......}
> >>[82197.739337] , at:
> >>[82197.739878] [<ffffffff811ebd5c>] watchdog+0x9c/0x600
> >>[82197.743605]  #1:
> >>[82197.744052]  (
> >>[82197.744453] tasklist_lock
> >>[82197.745599] ){.+.+..}
> >>[82197.746606] , at:
> >>[82197.747140] [<ffffffff8117576d>] debug_show_all_locks+0x3d/0x1a0
> >>[82197.751888] 2 locks held by agetty/1149:
> >>[82197.754533]  #0:
> >>[82197.754981]  (
> >>[82197.755372] &tty->ldisc_sem
> >>[82197.756689] ){++++.+}
> >>[82197.757692] , at:
> >>[82197.758228] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
> >>[82197.762450]  #1:
> >>[82197.762898]  (
> >>[82197.763294] &ldata->atomic_read_lock
> >>[82197.765398] ){+.+...}
> >>[82197.766403] , at:
> >>[82197.766938] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
> >>[82197.770835] 1 lock held by mission-control/1506:
> >>[82197.774179]  #0:
> >>[82197.774628]  (
> >>[82197.775024] rtnl_mutex
> >>[82197.775907] ){+.+.+.}
> >>[82197.776914] , at:
> >>[82197.777455] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>[82197.781511] 2 locks held by bash/1691:
> >>[82197.783987]  #0:
> >>[82197.784438]  (
> >>[82197.784832] &tty->ldisc_sem
> >>[82197.786151] ){++++.+}
> >>[82197.787154] , at:
> >>[82197.787692] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
> >>[82197.791909]  #1:
> >>[82197.792354]  (
> >>[82197.792749] &ldata->atomic_read_lock
> >>[82197.794849] ){+.+...}
> >>[82197.795851] , at:
> >>[82197.796387] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
> >>[82197.800256] 1 lock held by evolution-calen/1768:
> >>[82197.803603]  #0:
> >>[82197.804051]  (
> >>[82197.804448] rtnl_mutex
> >>[82197.805330] ){+.+.+.}
> >>[82197.806335] , at:
> >>[82197.806872] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>[82197.810915] 2 locks held by hostapd/4100:
> >>[82197.813650]  #0:
> >>[82197.814096]  (
> >>[82197.814492] cb_lock
> >>[82197.815112] ){++++++}
> >>[82197.816115] , at:
> >>[82197.816651] [<ffffffff8186d494>] genl_rcv+0x14/0x40
> >>[82197.820260]  #1:
> >>[82197.820711]  (
> >>[82197.821108] genl_mutex
> >>[82197.821989] ){+.+.+.}
> >>[82197.822989] , at:
> >>[82197.823529] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82197.827485] 2 locks held by hostapd/4392:
> >>[82197.830218]  #0:
> >>[82197.830672]  (
> >>[82197.831065] cb_lock
> >>[82197.831687] ){++++++}
> >>[82197.832687] , at:
> >>[82197.833223] [<ffffffff8186d494>] genl_rcv+0x14/0x40
> >>[82197.836833]  #1:
> >>[82197.837278]  (
> >>[82197.837675] genl_mutex
> >>[82197.838561] ){+.+.+.}
> >>[82197.839572] , at:
> >>[82197.840108] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82197.844067] 3 locks held by wpa_supplicant/4574:
> >>[82197.847410]  #0:
> >>[82197.847859]  (
> >>[82197.848250] cb_lock
> >>[82197.848874] ){++++++}
> >>[82197.849877] , at:
> >>[82197.850417] [<ffffffff8186d494>] genl_rcv+0x14/0x40
> >>[82197.854025]  #1:
> >>[82197.854476]  (
> >>[82197.854872] genl_mutex
> >>[82197.855755] ){+.+.+.}
> >>[82197.856758] , at:
> >>[82197.857294] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82197.861249]  #2:
> >>[82197.861698]  (
> >>[82197.862092] rtnl_mutex
> >>[82197.862977] ){+.+.+.}
> >>[82197.863978] , at:
> >>[82197.864515] [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82197.868209] 2 locks held by hostapd/4733:
> >>[82197.870943]  #0:
> >>[82197.871387]  (
> >>[82197.871783] cb_lock
> >>[82197.872402] ){++++++}
> >>[82197.873413] , at:
> >>[82197.873947] [<ffffffff8186d494>] genl_rcv+0x14/0x40
> >>[82197.877554]  #1:
> >>[82197.878000]  (
> >>[82197.878391] genl_mutex
> >>[82197.879275] ){+.+.+.}
> >>[82197.880281] , at:
> >>[82197.880828] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82197.884784] 2 locks held by bash/5322:
> >>[82197.887256]  #0:
> >>[82197.887705]  (
> >>[82197.888099] &tty->ldisc_sem
> >>[82197.889417] ){++++.+}
> >>[82197.890425] , at:
> >>[82197.890960] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
> >>[82197.895176]  #1:
> >>[82197.895627]  (
> >>[82197.896018] &ldata->atomic_read_lock
> >>[82197.898117] ){+.+...}
> >>[82197.899120] , at:
> >>[82197.899658] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
> >>[82197.903548] 2 locks held by bash/24789:
> >>[82197.906113]  #0:
> >>[82197.906564]  (
> >>[82197.906957] &tty->ldisc_sem
> >>[82197.908273] ){++++.+}
> >>[82197.909276] , at:
> >>[82197.909817] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
> >>[82197.914676]  #1:
> >>[82197.915123]  (
> >>[82197.915518] &ldata->atomic_read_lock
> >>[82197.917618] ){+.+...}
> >>[82197.918621] , at:
> >>[82197.919154] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
> >>[82197.923029] 5 locks held by kworker/u8:1/1965:
> >>[82197.926195]  #0:
> >>[82197.926643]  (
> >>[82197.927037] "%s"wiphy_name(local->hw.wiphy)
> >>[82197.929742] ){++++.+}
> >>[82197.930745] , at:
> >>[82197.931279] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82197.935755]  #1:
> >>[82197.936200]  (
> >>[82197.936600] (&sdata->work)
> >>[82197.937831] ){+.+.+.}
> >>[82197.938834] , at:
> >>[82197.939370] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82197.943864]  #2:
> >>[82197.944311]  (
> >>[82197.944706] &wdev->mtx
> >>[82197.945590] ){+.+.+.}
> >>[82197.946590] , at:
> >>[82197.947160] [<ffffffffa0e65557>] ieee80211_sta_work+0x47/0x1b50 [mac80211]
> >>[82197.952766]  #3:
> >>[82197.953213]  (
> >>[82197.953611] &local->sta_mtx
> >>[82197.954929] ){+.+.+.}
> >>[82197.955932] , at:
> >>[82197.956485] [<ffffffffa0dffae6>] __sta_info_flush+0x86/0x190 [mac80211]
> >>[82197.961829]  #4:
> >>[82197.962276]  (
> >>[82197.962671] &ar->conf_mutex
> >>[82197.963989] ){+.+.+.}
> >>[82197.964995] , at:
> >>[82197.965541] [<ffffffffa12a3165>] ath10k_sta_state+0x205/0xbd0 [ath10k_core]
> >>[82197.971233] 3 locks held by kworker/u8:3/2064:
> >>[82197.974402]  #0:
> >>[82197.974851]  (
> >>[82197.975244] "%s""ath10k_wq"
> >>[82197.976561] ){.+.+.+}
> >>[82197.977565] , at:
> >>[82197.978101] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82197.982578]  #1:
> >>[82197.983025]  (
> >>[82197.983424] (&(&ar->debug.nop_dwork)->work)
> >>[82197.986131] ){+.+...}
> >>[82197.987132] , at:
> >>[82197.987670] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82197.992147]  #2:
> >>[82197.992596]  (
> >>[82197.992987] &ar->conf_mutex
> >>[82197.994305] ){+.+.+.}
> >>[82197.995308] , at:
> >>[82197.995853] [<ffffffffa12acbb4>] ath10k_debug_nop_dwork+0x24/0x80 [ath10k_core]
> >>[82198.001892] 4 locks held by kworker/0:2/2149:
> >>[82198.004973]  #0:
> >>[82198.005423]  (
> >>[82198.005818] "events_freezable"
> >>[82198.007396] ){.+.+..}
> >>[82198.008400] , at:
> >>[82198.008938] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82198.013414]  #1:
> >>[82198.013863]  (
> >>[82198.014255] (&local->restart_work)
> >>[82198.016181] ){+.+...}
> >>[82198.017184] , at:
> >>[82198.017722] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82198.022202]  #2:
> >>[82198.022649]  (
> >>[82198.023042] rtnl_mutex
> >>[82198.023924] ){+.+.+.}
> >>[82198.024927] , at:
> >>[82198.025463] [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82198.029160]  #3:
> >>[82198.029613]  (
> >>[82198.030007] &ar->conf_mutex
> >>[82198.031326] ){+.+.+.}
> >>[82198.032332] , at:
> >>[82198.032880] [<ffffffffa12a8686>] ath10k_start+0x26/0x5d0 [ath10k_core]
> >>[82198.038139] 3 locks held by kworker/3:3/2153:
> >>[82198.041222]  #0:
> >>[82198.041676]  (
> >>[82198.042070] "events"
> >>[82198.042782] ){.+.+.+}
> >>[82198.043786] , at:
> >>[82198.044320] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82198.048800]  #1:
> >>[82198.049246]  (
> >>[82198.049646] (linkwatch_work).work
> >>[82198.051490] ){+.+.+.}
> >>[82198.052497] , at:
> >>[82198.053031] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82198.057510]  #2:
> >>[82198.057957]  (
> >>[82198.058351] rtnl_mutex
> >>[82198.059238] ){+.+.+.}
> >>[82198.060245] , at:
> >>[82198.060788] [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82198.064488] 3 locks held by kworker/2:2/2984:
> >>[82198.067571]  #0:
> >>[82198.068016]  (
> >>[82198.068413] "%s"("ipv6_addrconf")
> >>[82198.070258] ){.+.+..}
> >>[82198.071265] , at:
> >>[82198.071808] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82198.076287]  #1:
> >>[82198.076741]  (
> >>[82198.077136] (addr_chk_work).work
> >>[82198.078892] ){+.+...}
> >>[82198.079899] , at:
> >>[82198.080442] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82198.084919]  #2:
> >>[82198.085367]  (
> >>[82198.085766] rtnl_mutex
> >>[82198.086651] ){+.+.+.}
> >>[82198.087657] , at:
> >>[82198.088193] [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82198.091893] 1 lock held by ip/3840:
> >>[82198.094110]  #0:
> >>[82198.094562]  (
> >>[82198.094958] rtnl_mutex
> >>[82198.095847] ){+.+.+.}
> >>[82198.096851] , at:
> >>[82198.097385] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>[82198.101432] 1 lock held by ip/3843:
> >>[82198.103651]  #0:
> >>[82198.104100]  (
> >>[82198.104499] rtnl_mutex
> >>[82198.105380] ){+.+.+.}
> >>[82198.106387] , at:
> >>[82198.106930] [<ffffffff8186959e>] netlink_dump+0x1e/0x290
> >>[82198.110974] 1 lock held by ip/3845:
> >>[82198.113192]  #0:
> >>[82198.113643]  (
> >>[82198.114036] rtnl_mutex
> >>[82198.114922] ){+.+.+.}
> >>[82198.115928] , at:
> >>[82198.116470] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>
> >>[82198.120727] =============================================
> >>
> >>[82198.125246] INFO: task hostapd:4733 blocked for more than 180 seconds.
> >>[82198.130511]       Tainted: G        W       4.9.0-rc6+ #9
> >>[82198.134637] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> >>[82198.141190] hostapd         D    0  4733      1 0x00000000
> >>[82198.145419]  ffff8802114d3700 000000000000d4bf ffff880214de0000 ffff8801f1ca8000
> >>[82198.151603]  ffff88021e2998d8 ffffc9000a5ffb40 ffffffff819322eb 0000000000000006
> >>[82198.157785]  ffff8801f1ca8828 000000000a5ffb38 ffff88021e2998d8 0000000000000000
> >>[82198.163963] Call Trace:
> >>[82198.165138]  [<ffffffff819322eb>] ? __schedule+0x2fb/0xb30
> >>[82198.169348]  [<ffffffff81932b58>] schedule+0x38/0x90
> >>[82198.173040]  [<ffffffff81932f20>] schedule_preempt_disabled+0x10/0x20
> >>[82198.178581]  [<ffffffff81934b15>] mutex_lock_nested+0x175/0x3f0
> >>[82198.183231]  [<ffffffff8186d8d4>] ? genl_rcv_msg+0xa4/0xb0
> >>[82198.187459]  [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82198.191504]  [<ffffffff8186d830>] ? genl_family_rcv_msg+0x370/0x370
> >>[82198.196509]  [<ffffffff8186cddf>] netlink_rcv_skb+0x9f/0xc0
> >>[82198.200809]  [<ffffffff8186d4a3>] genl_rcv+0x23/0x40
> >>[82198.204499]  [<ffffffff8186c76d>] netlink_unicast+0x1cd/0x2e0
> >>[82198.208974]  [<ffffffff8186c6e9>] ? netlink_unicast+0x149/0x2e0
> >>[82198.213624]  [<ffffffff8186cb62>] netlink_sendmsg+0x2e2/0x390
> >>[82198.218099]  [<ffffffff8180ca73>] sock_sendmsg+0x33/0x40
> >>[82198.222136]  [<ffffffff8180d55b>] ___sys_sendmsg+0x2db/0x2f0
> >>[82198.226523]  [<ffffffff81172eba>] ? up_write+0x1a/0x40
> >>[82198.230391]  [<ffffffff81357048>] ? ext4_file_write_iter+0x88/0x340
> >>[82198.235387]  [<ffffffff81195c0d>] ? debug_lockdep_rcu_enabled+0x1d/0x20
> >>[82198.241083]  [<ffffffff8180e170>] __sys_sendmsg+0x40/0x70
> >>[82198.245211]  [<ffffffff8180e1ad>] SyS_sendmsg+0xd/0x20
> >>[82198.249075]  [<ffffffff81939f45>] entry_SYSCALL_64_fastpath+0x23/0xc6
> >>[82198.254241]
> >>Showing all locks held in the system:
> >>[82198.257876] 2 locks held by khungtaskd/37:
> >>[82198.260698]  #0:
> >>[82198.261143]  (
> >>[82198.261544] rcu_read_lock
> >>[82198.262692] ){......}
> >>[82198.263696] , at:
> >>[82198.264232] [<ffffffff811ebd5c>] watchdog+0x9c/0x600
> >>[82198.267927]  #1:
> >>[82198.268374]  (
> >>[82198.268770] tasklist_lock
> >>[82198.269914] ){.+.+..}
> >>[82198.270919] , at:
> >>[82198.271459] [<ffffffff8117576d>] debug_show_all_locks+0x3d/0x1a0
> >>[82198.276203] 2 locks held by agetty/1149:
> >>[82198.278852]  #0:
> >>[82198.279299]  (
> >>[82198.279700] &tty->ldisc_sem
> >>[82198.281017] ){++++.+}
> >>[82198.282020] , at:
> >>[82198.282558] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
> >>[82198.286775]  #1:
> >>[82198.287219]  (
> >>[82198.287618] &ldata->atomic_read_lock
> >>[82198.289719] ){+.+...}
> >>[82198.290723] , at:
> >>[82198.291257] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
> >>[82198.295134] 1 lock held by mission-control/1506:
> >>[82198.298476]  #0:
> >>[82198.298921]  (
> >>[82198.299317] rtnl_mutex
> >>[82198.300203] ){+.+.+.}
> >>[82198.301209] , at:
> >>[82198.301747] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>[82198.305792] 2 locks held by bash/1691:
> >>[82198.308266]  #0:
> >>[82198.308718]  (
> >>[82198.309114] &tty->ldisc_sem
> >>[82198.310435] ){++++.+}
> >>[82198.311441] , at:
> >>[82198.311983] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
> >>[82198.316207]  #1:
> >>[82198.316660]  (
> >>[82198.317057] &ldata->atomic_read_lock
> >>[82198.319153] ){+.+...}
> >>[82198.320158] , at:
> >>[82198.320696] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
> >>[82198.324567] 1 lock held by evolution-calen/1768:
> >>[82198.327911]  #0:
> >>[82198.328356]  (
> >>[82198.328752] rtnl_mutex
> >>[82198.329635] ){+.+.+.}
> >>[82198.330639] , at:
> >>[82198.331172] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>[82198.335221] 2 locks held by hostapd/4100:
> >>[82198.337954]  #0:
> >>[82198.338399]  (
> >>[82198.338813] cb_lock
> >>[82198.339432] ){++++++}
> >>[82198.340437] , at:
> >>[82198.340975] [<ffffffff8186d494>] genl_rcv+0x14/0x40
> >>[82198.344585]  #1:
> >>[82198.345030]  (
> >>[82198.345421] genl_mutex
> >>[82198.346306] ){+.+.+.}
> >>[82198.347310] , at:
> >>[82198.347847] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82198.351804] 2 locks held by hostapd/4392:
> >>[82198.354538]  #0:
> >>[82198.354983]  (
> >>[82198.355379] cb_lock
> >>[82198.356001] ){++++++}
> >>[82198.357002] , at:
> >>[82198.357539] [<ffffffff8186d494>] genl_rcv+0x14/0x40
> >>[82198.361149]  #1:
> >>[82198.361599]  (
> >>[82198.361991] genl_mutex
> >>[82198.362875] ){+.+.+.}
> >>[82198.363880] , at:
> >>[82198.364414] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82198.368373] 3 locks held by wpa_supplicant/4574:
> >>[82198.371714]  #0:
> >>[82198.372161]  (
> >>[82198.372560] cb_lock
> >>[82198.373180] ){++++++}
> >>[82198.374185] , at:
> >>[82198.374723] [<ffffffff8186d494>] genl_rcv+0x14/0x40
> >>[82198.378332]  #1:
> >>[82198.378782]  (
> >>[82198.379175] genl_mutex
> >>[82198.380059] ){+.+.+.}
> >>[82198.381066] , at:
> >>[82198.381604] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82198.385560]  #2:
> >>[82198.386005]  (
> >>[82198.386401] rtnl_mutex
> >>[82198.387283] ){+.+.+.}
> >>[82198.388284] , at:
> >>[82198.388821] [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82198.392520] 2 locks held by hostapd/4733:
> >>[82198.395258]  #0:
> >>[82198.395708]  (
> >>[82198.396101] cb_lock
> >>[82198.396726] ){++++++}
> >>[82198.397730] , at:
> >>[82198.398266] [<ffffffff8186d494>] genl_rcv+0x14/0x40
> >>[82198.401874]  #1:
> >>[82198.402318]  (
> >>[82198.402714] genl_mutex
> >>[82198.403598] ){+.+.+.}
> >>[82198.404602] , at:
> >>[82198.405138] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82198.409094] 2 locks held by bash/5322:
> >>[82198.411571]  #0:
> >>[82198.412018]  (
> >>[82198.412412] &tty->ldisc_sem
> >>[82198.413729] ){++++.+}
> >>[82198.414735] , at:
> >>[82198.415269] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
> >>[82198.419487]  #1:
> >>[82198.419935]  (
> >>[82198.420329] &ldata->atomic_read_lock
> >>[82198.422428] ){+.+...}
> >>[82198.423433] , at:
> >>[82198.423970] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
> >>[82198.427840] 2 locks held by bash/24789:
> >>[82198.430403]  #0:
> >>[82198.430855]  (
> >>[82198.431248] &tty->ldisc_sem
> >>[82198.432568] ){++++.+}
> >>[82198.433570] , at:
> >>[82198.434106] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
> >>[82198.438322]  #1:
> >>[82198.438776]  (
> >>[82198.439169] &ldata->atomic_read_lock
> >>[82198.441270] ){+.+...}
> >>[82198.442919] , at:
> >>[82198.443453] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
> >>[82198.447342] 5 locks held by kworker/u8:1/1965:
> >>[82198.450512]  #0:
> >>[82198.450959]  (
> >>[82198.451350] "%s"wiphy_name(local->hw.wiphy)
> >>[82198.454057] ){++++.+}
> >>[82198.455059] , at:
> >>[82198.455598] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82198.460074]  #1:
> >>[82198.460527]  (
> >>[82198.460932] (&sdata->work)
> >>[82198.462167] ){+.+.+.}
> >>[82198.463172] , at:
> >>[82198.463710] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82198.468186]  #2:
> >>[82198.468635]  (
> >>[82198.469029] &wdev->mtx
> >>[82198.469913] ){+.+.+.}
> >>[82198.470920] , at:
> >>[82198.471487] [<ffffffffa0e65557>] ieee80211_sta_work+0x47/0x1b50 [mac80211]
> >>[82198.477106]  #3:
> >>[82198.477556]  (
> >>[82198.477947] &local->sta_mtx
> >>[82198.479266] ){+.+.+.}
> >>[82198.480270] , at:
> >>[82198.480821] [<ffffffffa0dffae6>] __sta_info_flush+0x86/0x190 [mac80211]
> >>[82198.486165]  #4:
> >>[82198.486617]  (
> >>[82198.487008] &ar->conf_mutex
> >>[82198.488327] ){+.+.+.}
> >>[82198.489332] , at:
> >>[82198.489877] [<ffffffffa12a3165>] ath10k_sta_state+0x205/0xbd0 [ath10k_core]
> >>[82198.495570] 3 locks held by kworker/u8:3/2064:
> >>[82198.498739]  #0:
> >>[82198.499184]  (
> >>[82198.499585] "%s""ath10k_wq"
> >>[82198.500904] ){.+.+.+}
> >>[82198.501911] , at:
> >>[82198.502444] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82198.506921]  #1:
> >>[82198.507370]  (
> >>[82198.507771] (&(&ar->debug.nop_dwork)->work)
> >>[82198.510480] ){+.+...}
> >>[82198.511487] , at:
> >>[82198.512021] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82198.516500]  #2:
> >>[82198.516945]  (
> >>[82198.517336] &ar->conf_mutex
> >>[82198.518655] ){+.+.+.}
> >>[82198.519659] , at:
> >>[82198.520201] [<ffffffffa12acbb4>] ath10k_debug_nop_dwork+0x24/0x80 [ath10k_core]
> >>[82198.526242] 4 locks held by kworker/0:2/2149:
> >>[82198.529326]  #0:
> >>[82198.529776]  (
> >>[82198.530167] "events_freezable"
> >>[82198.531746] ){.+.+..}
> >>[82198.532748] , at:
> >>[82198.533284] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82198.537762]  #1:
> >>[82198.538209]  (
> >>[82198.538608] (&local->restart_work)
> >>[82198.540537] ){+.+...}
> >>[82198.541543] , at:
> >>[82198.542077] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82198.546554]  #2:
> >>[82198.547001]  (
> >>[82198.547395] rtnl_mutex
> >>[82198.548280] ){+.+.+.}
> >>[82198.549284] , at:
> >>[82198.549824] [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82198.553519]  #3:
> >>[82198.553964]  (
> >>[82198.554355] &ar->conf_mutex
> >>[82198.555674] ){+.+.+.}
> >>[82198.556677] , at:
> >>[82198.557216] [<ffffffffa12a8686>] ath10k_start+0x26/0x5d0 [ath10k_core]
> >>[82198.562479] 3 locks held by kworker/3:3/2153:
> >>[82198.565563]  #0:
> >>[82198.566011]  (
> >>[82198.566407] "events"
> >>[82198.567122] ){.+.+.+}
> >>[82198.568126] , at:
> >>[82198.568666] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82198.573148]  #1:
> >>[82198.573598]  (
> >>[82198.573989] (linkwatch_work).work
> >>[82198.575827] ){+.+.+.}
> >>[82198.576831] , at:
> >>[82198.577365] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82198.581846]  #2:
> >>[82198.582291]  (
> >>[82198.582690] rtnl_mutex
> >>[82198.583574] ){+.+.+.}
> >>[82198.584578] , at:
> >>[82198.585114] [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82198.588810] 3 locks held by kworker/2:2/2984:
> >>[82198.591894]  #0:
> >>[82198.592339]  (
> >>[82198.592740] "%s"("ipv6_addrconf")
> >>[82198.594582] ){.+.+..}
> >>[82198.595586] , at:
> >>[82198.596120] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82198.600603]  #1:
> >>[82198.601049]  (
> >>[82198.601445] (addr_chk_work).work
> >>[82198.603198] ){+.+...}
> >>[82198.604203] , at:
> >>[82198.604744] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82198.609219]  #2:
> >>[82198.609671]  (
> >>[82198.610062] rtnl_mutex
> >>[82198.610947] ){+.+.+.}
> >>[82198.611951] , at:
> >>[82198.612491] [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82198.616188] 1 lock held by ip/3840:
> >>[82198.618404]  #0:
> >>[82198.618853]  (
> >>[82198.619244] rtnl_mutex
> >>[82198.620128] ){+.+.+.}
> >>[82198.621135] , at:
> >>[82198.621672] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>[82198.625726] 1 lock held by ip/3843:
> >>[82198.627941]  #0:
> >>[82198.628386]  (
> >>[82198.628782] rtnl_mutex
> >>[82198.629665] ){+.+.+.}
> >>[82198.630672] , at:
> >>[82198.631207] [<ffffffff8186959e>] netlink_dump+0x1e/0x290
> >>[82198.635251] 1 lock held by ip/3845:
> >>[82198.637470]  #0:
> >>[82198.637920]  (
> >>[82198.638311] rtnl_mutex
> >>[82198.639195] ){+.+.+.}
> >>[82198.640200] , at:
> >>[82198.640737] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>
> >>[82198.644997] =============================================
> >>
> >>[82198.649338] INFO: task kworker/u8:1:1965 blocked for more than 180 seconds.
> >>[82198.655030]       Tainted: G        W       4.9.0-rc6+ #9
> >>[82198.659158] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> >>[82198.665739] kworker/u8:1    D    0  1965      2 0x00000000
> >>[82198.669993] Workqueue: phy0 ieee80211_iface_work [mac80211]
> >>[82198.674305]  ffff8802114d6900 000000000000abfd ffffffff81e11580 ffff8801f1c0a640
> >>[82198.680525]  ffff88021e2198d8 ffffc9000e6a3990 ffffffff819322eb 0000000000000006
> >>[82198.686705]  ffff8801f1c0ae68 000000000e6a3988 ffff88021e2198d8 0000000000000000
> >>[82198.692880] Call Trace:
> >>[82198.694054]  [<ffffffff819322eb>] ? __schedule+0x2fb/0xb30
> >>[82198.698266]  [<ffffffff81932b58>] schedule+0x38/0x90
> >>[82198.701974]  [<ffffffff81932f20>] schedule_preempt_disabled+0x10/0x20
> >>[82198.707140]  [<ffffffff81934b15>] mutex_lock_nested+0x175/0x3f0
> >>[82198.711796]  [<ffffffffa12a3165>] ? ath10k_sta_state+0x205/0xbd0 [ath10k_core]
> >>[82198.717750]  [<ffffffffa12a3165>] ath10k_sta_state+0x205/0xbd0 [ath10k_core]
> >>[82198.723545]  [<ffffffffa0df5d7f>] drv_sta_state+0xaf/0xa30 [mac80211]
> >>[82198.728742]  [<ffffffffa0dfe7d0>] sta_info_move_state+0x2a0/0x3c0 [mac80211]
> >>[82198.734529]  [<ffffffffa0dff6ab>] __sta_info_destroy_part2+0x7b/0x230 [mac80211]
> >>[82198.740663]  [<ffffffffa0dffb5b>] __sta_info_flush+0xfb/0x190 [mac80211]
> >>[82198.746110]  [<ffffffffa0e61096>] ieee80211_set_disassoc+0xc6/0x430 [mac80211]
> >>[82198.752087]  [<ffffffffa0e61433>] ieee80211_sta_connection_lost+0x33/0x70 [mac80211]
> >>[82198.758592]  [<ffffffffa0e65c69>] ieee80211_sta_work+0x759/0x1b50 [mac80211]
> >>[82198.764368]  [<ffffffff8117707f>] ? mark_held_locks+0x6f/0xa0
> >>[82198.768858]  [<ffffffff8193981e>] ? _raw_spin_unlock_irqrestore+0x4e/0x70
> >>[82198.774372]  [<ffffffff8117726d>] ? trace_hardirqs_on+0xd/0x10
> >>[82198.778947]  [<ffffffffa0e143d3>] ieee80211_iface_work+0x373/0x410 [mac80211]
> >>[82198.784810]  [<ffffffff8113a804>] ? process_one_work+0x164/0x740
> >>[82198.789545]  [<ffffffff8113a883>] process_one_work+0x1e3/0x740
> >>[82198.794103]  [<ffffffff8113a804>] ? process_one_work+0x164/0x740
> >>[82198.798835]  [<ffffffff8113ae26>] worker_thread+0x46/0x4f0
> >>[82198.803066]  [<ffffffff8113ade0>] ? process_one_work+0x740/0x740
> >>[82198.807800]  [<ffffffff8114166a>] kthread+0xfa/0x110
> >>[82198.811493]  [<ffffffff81141570>] ? kthread_park+0x60/0x60
> >>[82198.815712]  [<ffffffff8193a1ea>] ret_from_fork+0x2a/0x40
> >>[82198.819837]
> >>Showing all locks held in the system:
> >>[82198.823469] 2 locks held by khungtaskd/37:
> >>[82198.826309]  #0:
> >>[82198.826762]  (
> >>[82198.827157] rcu_read_lock
> >>[82198.828301] ){......}
> >>[82198.829305] , at:
> >>[82198.829844] [<ffffffff811ebd5c>] watchdog+0x9c/0x600
> >>[82198.833539]  #1:
> >>[82198.833984]  (
> >>[82198.834375] tasklist_lock
> >>[82198.835519] ){.+.+..}
> >>[82198.836526] , at:
> >>[82198.837060] [<ffffffff8117576d>] debug_show_all_locks+0x3d/0x1a0
> >>[82198.841813] 2 locks held by agetty/1149:
> >>[82198.844464]  #0:
> >>[82198.844915]  (
> >>[82198.845309] &tty->ldisc_sem
> >>[82198.846627] ){++++.+}
> >>[82198.847631] , at:
> >>[82198.848164] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
> >>[82198.852381]  #1:
> >>[82198.852832]  (
> >>[82198.853225] &ldata->atomic_read_lock
> >>[82198.855325] ){+.+...}
> >>[82198.856328] , at:
> >>[82198.856867] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
> >>[82198.860743] 1 lock held by mission-control/1506:
> >>[82198.864086]  #0:
> >>[82198.864537]  (
> >>[82198.864929] rtnl_mutex
> >>[82198.865813] ){+.+.+.}
> >>[82198.866817] , at:
> >>[82198.867353] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>[82198.871407] 2 locks held by bash/1691:
> >>[82198.873879]  #0:
> >>[82198.874327]  (
> >>[82198.874722] &tty->ldisc_sem
> >>[82198.876041] ){++++.+}
> >>[82198.877043] , at:
> >>[82198.877583] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
> >>[82198.881799]  #1:
> >>[82198.882244]  (
> >>[82198.882644] &ldata->atomic_read_lock
> >>[82198.884743] ){+.+...}
> >>[82198.885746] , at:
> >>[82198.886280] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
> >>[82198.890149] 1 lock held by evolution-calen/1768:
> >>[82198.893488]  #0:
> >>[82198.893937]  (
> >>[82198.894331] rtnl_mutex
> >>[82198.895214] ){+.+.+.}
> >>[82198.896218] , at:
> >>[82198.896757] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>[82198.900800] 2 locks held by hostapd/4100:
> >>[82198.903538]  #0:
> >>[82198.903985]  (
> >>[82198.904386] cb_lock
> >>[82198.905010] ){++++++}
> >>[82198.906017] , at:
> >>[82198.906554] [<ffffffff8186d494>] genl_rcv+0x14/0x40
> >>[82198.910163]  #1:
> >>[82198.910612]  (
> >>[82198.911006] genl_mutex
> >>[82198.911887] ){+.+.+.}
> >>[82198.912888] , at:
> >>[82198.913423] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82198.917382] 2 locks held by hostapd/4392:
> >>[82198.920116]  #0:
> >>[82198.920565]  (
> >>[82198.920958] cb_lock
> >>[82198.921579] ){++++++}
> >>[82198.922580] , at:
> >>[82198.923116] [<ffffffff8186d494>] genl_rcv+0x14/0x40
> >>[82198.926727]  #1:
> >>[82198.927175]  (
> >>[82198.927570] genl_mutex
> >>[82198.928450] ){+.+.+.}
> >>[82198.929456] , at:
> >>[82198.929991] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82198.933949] 3 locks held by wpa_supplicant/4574:
> >>[82198.937289]  #0:
> >>[82198.937740]  (
> >>[82198.938134] cb_lock
> >>[82198.938757] ){++++++}
> >>[82198.939759] , at:
> >>[82198.940292] [<ffffffff8186d494>] genl_rcv+0x14/0x40
> >>[82198.943903]  #1:
> >>[82198.944351]  (
> >>[82198.944745] genl_mutex
> >>[82198.945631] ){+.+.+.}
> >>[82198.946635] , at:
> >>[82198.947170] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82198.951126]  #2:
> >>[82198.951575]  (
> >>[82198.951965] rtnl_mutex
> >>[82198.952849] ){+.+.+.}
> >>[82198.953850] , at:
> >>[82198.954386] [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82198.958082] 2 locks held by hostapd/4733:
> >>[82198.960818]  #0:
> >>[82198.961265]  (
> >>[82198.961664] cb_lock
> >>[82198.962284] ){++++++}
> >>[82198.963288] , at:
> >>[82198.963826] [<ffffffff8186d494>] genl_rcv+0x14/0x40
> >>[82198.967437]  #1:
> >>[82198.967886]  (
> >>[82198.968280] genl_mutex
> >>[82198.969163] ){+.+.+.}
> >>[82198.970164] , at:
> >>[82198.970704] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82198.974662] 2 locks held by bash/5322:
> >>[82198.977138]  #0:
> >>[82198.977587]  (
> >>[82198.977978] &tty->ldisc_sem
> >>[82198.979295] ){++++.+}
> >>[82198.980299] , at:
> >>[82198.980839] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
> >>[82198.985056]  #1:
> >>[82198.985500]  (
> >>[82198.985900] &ldata->atomic_read_lock
> >>[82198.987997] ){+.+...}
> >>[82198.989002] , at:
> >>[82198.989541] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
> >>[82198.993409] 2 locks held by bash/24789:
> >>[82198.995969]  #0:
> >>[82198.996416]  (
> >>[82198.997455] &tty->ldisc_sem
> >>[82198.998773] ){++++.+}
> >>[82198.999777] , at:
> >>[82199.000313] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
> >>[82199.004534]  #1:
> >>[82199.004983]  (
> >>[82199.005377] &ldata->atomic_read_lock
> >>[82199.007476] ){+.+...}
> >>[82199.008480] , at:
> >>[82199.009018] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
> >>[82199.012891] 5 locks held by kworker/u8:1/1965:
> >>[82199.016057]  #0:
> >>[82199.016504]  (
> >>[82199.016905] "%s"wiphy_name(local->hw.wiphy)
> >>[82199.019615] ){++++.+}
> >>[82199.020621] , at:
> >>[82199.021155] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82199.025633]  #1:
> >>[82199.026080]  (
> >>[82199.026471] (&sdata->work)
> >>[82199.027702] ){+.+.+.}
> >>[82199.028706] , at:
> >>[82199.029242] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82199.033719]  #2:
> >>[82199.034167]  (
> >>[82199.034564] &wdev->mtx
> >>[82199.035444] ){+.+.+.}
> >>[82199.036446] , at:
> >>[82199.037006] [<ffffffffa0e65557>] ieee80211_sta_work+0x47/0x1b50 [mac80211]
> >>[82199.042610]  #3:
> >>[82199.043059]  (
> >>[82199.043455] &local->sta_mtx
> >>[82199.044775] ){+.+.+.}
> >>[82199.045779] , at:
> >>[82199.046328] [<ffffffffa0dffae6>] __sta_info_flush+0x86/0x190 [mac80211]
> >>[82199.051671]  #4:
> >>[82199.052119]  (
> >>[82199.052520] &ar->conf_mutex
> >>[82199.053839] ){+.+.+.}
> >>[82199.054845] , at:
> >>[82199.055384] [<ffffffffa12a3165>] ath10k_sta_state+0x205/0xbd0 [ath10k_core]
> >>[82199.061077] 3 locks held by kworker/u8:3/2064:
> >>[82199.064243]  #0:
> >>[82199.064692]  (
> >>[82199.065086] "%s""ath10k_wq"
> >>[82199.066402] ){.+.+.+}
> >>[82199.067406] , at:
> >>[82199.067944] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82199.072422]  #1:
> >>[82199.072871]  (
> >>[82199.073265] (&(&ar->debug.nop_dwork)->work)
> >>[82199.075972] ){+.+...}
> >>[82199.076973] , at:
> >>[82199.077510] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82199.081989]  #2:
> >>[82199.082434]  (
> >>[82199.082832] &ar->conf_mutex
> >>[82199.084150] ){+.+.+.}
> >>[82199.085154] , at:
> >>[82199.085698] [<ffffffffa12acbb4>] ath10k_debug_nop_dwork+0x24/0x80 [ath10k_core]
> >>[82199.091736] 4 locks held by kworker/0:2/2149:
> >>[82199.094817]  #0:
> >>[82199.095265]  (
> >>[82199.095663] "events_freezable"
> >>[82199.097240] ){.+.+..}
> >>[82199.098247] , at:
> >>[82199.098784] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82199.103261]  #1:
> >>[82199.103710]  (
> >>[82199.104101] (&local->restart_work)
> >>[82199.106027] ){+.+...}
> >>[82199.107029] , at:
> >>[82199.107567] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82199.112044]  #2:
> >>[82199.112489]  (
> >>[82199.112884] rtnl_mutex
> >>[82199.113768] ){+.+.+.}
> >>[82199.114771] , at:
> >>[82199.115307] [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82199.119002]  #3:
> >>[82199.119449]  (
> >>[82199.119848] &ar->conf_mutex
> >>[82199.121166] ){+.+.+.}
> >>[82199.122169] , at:
> >>[82199.122711] [<ffffffffa12a8686>] ath10k_start+0x26/0x5d0 [ath10k_core]
> >>[82199.127968] 3 locks held by kworker/3:3/2153:
> >>[82199.131048]  #0:
> >>[82199.131496]  (
> >>[82199.131894] "events"
> >>[82199.132607] ){.+.+.+}
> >>[82199.133609] , at:
> >>[82199.134143] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82199.138623]  #1:
> >>[82199.139070]  (
> >>[82199.139463] (linkwatch_work).work
> >>[82199.141302] ){+.+.+.}
> >>[82199.142306] , at:
> >>[82199.142844] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82199.147321]  #2:
> >>[82199.147770]  (
> >>[82199.148161] rtnl_mutex
> >>[82199.149044] ){+.+.+.}
> >>[82199.150048] , at:
> >>[82199.150587] [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82199.154284] 3 locks held by kworker/2:2/2984:
> >>[82199.157363]  #0:
> >>[82199.157815]  (
> >>[82199.158210] "%s"("ipv6_addrconf")
> >>[82199.160049] ){.+.+..}
> >>[82199.161052] , at:
> >>[82199.161590] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82199.166067]  #1:
> >>[82199.166511]  (
> >>[82199.166909] (addr_chk_work).work
> >>[82199.168663] ){+.+...}
> >>[82199.169666] , at:
> >>[82199.170201] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82199.174678]  #2:
> >>[82199.175126]  (
> >>[82199.175527] rtnl_mutex
> >>[82199.176410] ){+.+.+.}
> >>[82199.177415] , at:
> >>[82199.177952] [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82199.181649] 1 lock held by ip/3840:
> >>[82199.183860]  #0:
> >>[82199.184307]  (
> >>[82199.184702] rtnl_mutex
> >>[82199.185586] ){+.+.+.}
> >>[82199.186587] , at:
> >>[82199.187120] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>[82199.191166] 1 lock held by ip/3843:
> >>[82199.193381]  #0:
> >>[82199.193832]  (
> >>[82199.194228] rtnl_mutex
> >>[82199.195110] ){+.+.+.}
> >>[82199.196111] , at:
> >>[82199.196650] [<ffffffff8186959e>] netlink_dump+0x1e/0x290
> >>[82199.200692] 1 lock held by ip/3845:
> >>[82199.202905]  #0:
> >>[82199.203353]  (
> >>[82199.203750] rtnl_mutex
> >>[82199.204637] ){+.+.+.}
> >>[82199.205642] , at:
> >>[82199.206175] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>
> >>[82199.210434] =============================================
> >>
> >>[82199.214770] INFO: task kworker/u8:3:2064 blocked for more than 180 seconds.
> >>[82199.220464]       Tainted: G        W       4.9.0-rc6+ #9
> >>[82199.224590] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> >>[82199.231148] kworker/u8:3    D    0  2064      2 0x00000000
> >>[82199.235388] Workqueue: ath10k_wq ath10k_debug_nop_dwork [ath10k_core]
> >>[82199.240577]  ffff880210f72d00 000000000000402d ffff880214de4c80 ffff880210c3cc80
> >>[82199.246767]  ffff88021e3998d8 ffffc9000e7d3cd0 ffffffff819322eb 0000000000000006
> >>[82199.252950]  ffff880210c3d4a8 000000000e7d3cc8 ffff88021e3998d8 0000000000000000
> >>[82199.259135] Call Trace:
> >>[82199.260313]  [<ffffffff819322eb>] ? __schedule+0x2fb/0xb30
> >>[82199.264540]  [<ffffffff81932b58>] schedule+0x38/0x90
> >>[82199.268232]  [<ffffffff81932f20>] schedule_preempt_disabled+0x10/0x20
> >>[82199.273408]  [<ffffffff81934b15>] mutex_lock_nested+0x175/0x3f0
> >>[82199.278444]  [<ffffffffa12acbb4>] ? ath10k_debug_nop_dwork+0x24/0x80 [ath10k_core]
> >>[82199.284757]  [<ffffffffa12acbb4>] ath10k_debug_nop_dwork+0x24/0x80 [ath10k_core]
> >>[82199.290889]  [<ffffffff8113a883>] process_one_work+0x1e3/0x740
> >>[82199.295457]  [<ffffffff8113a804>] ? process_one_work+0x164/0x740
> >>[82199.300197]  [<ffffffff8113ae26>] worker_thread+0x46/0x4f0
> >>[82199.304418]  [<ffffffff8113ade0>] ? process_one_work+0x740/0x740
> >>[82199.309157]  [<ffffffff8114166a>] kthread+0xfa/0x110
> >>[82199.312851]  [<ffffffff81141570>] ? kthread_park+0x60/0x60
> >>[82199.317071]  [<ffffffff8193a1ea>] ret_from_fork+0x2a/0x40
> >>[82199.321203]
> >>Showing all locks held in the system:
> >>[82199.324841] 2 locks held by khungtaskd/37:
> >>[82199.327667]  #0:
> >>[82199.328116]  (
> >>[82199.328510] rcu_read_lock
> >>[82199.329657] ){......}
> >>[82199.330665] , at:
> >>[82199.331203] [<ffffffff811ebd5c>] watchdog+0x9c/0x600
> >>[82199.334900]  #1:
> >>[82199.335346]  (
> >>[82199.335748] tasklist_lock
> >>[82199.336898] ){.+.+..}
> >>[82199.337905] , at:
> >>[82199.338443] [<ffffffff8117576d>] debug_show_all_locks+0x3d/0x1a0
> >>[82199.343193] 2 locks held by agetty/1149:
> >>[82199.345845]  #0:
> >>[82199.346293]  (
> >>[82199.346692] &tty->ldisc_sem
> >>[82199.348018] ){++++.+}
> >>[82199.349023] , at:
> >>[82199.349564] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
> >>[82199.353782]  #1:
> >>[82199.354230]  (
> >>[82199.354628] &ldata->atomic_read_lock
> >>[82199.356734] ){+.+...}
> >>[82199.357743] , at:
> >>[82199.358280] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
> >>[82199.362162] 1 lock held by mission-control/1506:
> >>[82199.365510]  #0:
> >>[82199.365963]  (
> >>[82199.366356] rtnl_mutex
> >>[82199.367241] ){+.+.+.}
> >>[82199.368246] , at:
> >>[82199.368784] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>[82199.372829] 2 locks held by bash/1691:
> >>[82199.375305]  #0:
> >>[82199.375762]  (
> >>[82199.376158] &tty->ldisc_sem
> >>[82199.377477] ){++++.+}
> >>[82199.378485] , at:
> >>[82199.379026] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
> >>[82199.383249]  #1:
> >>[82199.383701]  (
> >>[82199.384096] &ldata->atomic_read_lock
> >>[82199.386198] ){+.+...}
> >>[82199.387205] , at:
> >>[82199.387746] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
> >>[82199.391616] 1 lock held by evolution-calen/1768:
> >>[82199.394963]  #0:
> >>[82199.395411]  (
> >>[82199.395812] rtnl_mutex
> >>[82199.396700] ){+.+.+.}
> >>[82199.397708] , at:
> >>[82199.398244] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>[82199.402292] 2 locks held by hostapd/4100:
> >>[82199.405033]  #0:
> >>[82199.405480]  (
> >>[82199.405890] cb_lock
> >>[82199.406511] ){++++++}
> >>[82199.407521] , at:
> >>[82199.408062] [<ffffffff8186d494>] genl_rcv+0x14/0x40
> >>[82199.411675]  #1:
> >>[82199.412122]  (
> >>[82199.412518] genl_mutex
> >>[82199.413402] ){+.+.+.}
> >>[82199.414409] , at:
> >>[82199.414950] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82199.418910] 2 locks held by hostapd/4392:
> >>[82199.421649]  #0:
> >>[82199.422097]  (
> >>[82199.422493] cb_lock
> >>[82199.423117] ){++++++}
> >>[82199.424121] , at:
> >>[82199.424660] [<ffffffff8186d494>] genl_rcv+0x14/0x40
> >>[82199.428269]  #1:
> >>[82199.428719]  (
> >>[82199.429112] genl_mutex
> >>[82199.429997] ){+.+.+.}
> >>[82199.431003] , at:
> >>[82199.431537] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82199.435501] 3 locks held by wpa_supplicant/4574:
> >>[82199.438843]  #0:
> >>[82199.439290]  (
> >>[82199.439704] cb_lock
> >>[82199.440324] ){++++++}
> >>[82199.441332] , at:
> >>[82199.441872] [<ffffffff8186d494>] genl_rcv+0x14/0x40
> >>[82199.445480]  #1:
> >>[82199.445930]  (
> >>[82199.446326] genl_mutex
> >>[82199.447207] ){+.+.+.}
> >>[82199.448209] , at:
> >>[82199.448746] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82199.452705]  #2:
> >>[82199.453152]  (
> >>[82199.453543] rtnl_mutex
> >>[82199.454428] ){+.+.+.}
> >>[82199.455432] , at:
> >>[82199.455970] [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82199.459667] 2 locks held by hostapd/4733:
> >>[82199.462401]  #0:
> >>[82199.462850]  (
> >>[82199.463241] cb_lock
> >>[82199.463866] ){++++++}
> >>[82199.464870] , at:
> >>[82199.465404] [<ffffffff8186d494>] genl_rcv+0x14/0x40
> >>[82199.469020]  #1:
> >>[82199.469467]  (
> >>[82199.469863] genl_mutex
> >>[82199.470747] ){+.+.+.}
> >>[82199.471752] , at:
> >>[82199.472285] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82199.476244] 2 locks held by bash/5322:
> >>[82199.478718]  #0:
> >>[82199.479166]  (
> >>[82199.479568] &tty->ldisc_sem
> >>[82199.480892] ){++++.+}
> >>[82199.481896] , at:
> >>[82199.482430] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
> >>[82199.486649]  #1:
> >>[82199.487096]  (
> >>[82199.487490] &ldata->atomic_read_lock
> >>[82199.489589] ){+.+...}
> >>[82199.490593] , at:
> >>[82199.491126] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
> >>[82199.494998] 2 locks held by bash/24789:
> >>[82199.497563]  #0:
> >>[82199.498010]  (
> >>[82199.498406] &tty->ldisc_sem
> >>[82199.499723] ){++++.+}
> >>[82199.500728] , at:
> >>[82199.501261] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
> >>[82199.505479]  #1:
> >>[82199.505931]  (
> >>[82199.506322] &ldata->atomic_read_lock
> >>[82199.508421] ){+.+...}
> >>[82199.509425] , at:
> >>[82199.509962] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
> >>[82199.513836] 5 locks held by kworker/u8:1/1965:
> >>[82199.517005]  #0:
> >>[82199.517453]  (
> >>[82199.517848] "%s"wiphy_name(local->hw.wiphy)
> >>[82199.520563] ){++++.+}
> >>[82199.522214] , at:
> >>[82199.522759] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82199.527237]  #1:
> >>[82199.527691]  (
> >>[82199.528085] (&sdata->work)
> >>[82199.529321] ){+.+.+.}
> >>[82199.530323] , at:
> >>[82199.530862] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82199.535345]  #2:
> >>[82199.535797]  (
> >>[82199.536191] &wdev->mtx
> >>[82199.537075] ){+.+.+.}
> >>[82199.538079] , at:
> >>[82199.538651] [<ffffffffa0e65557>] ieee80211_sta_work+0x47/0x1b50 [mac80211]
> >>[82199.544262]  #3:
> >>[82199.544715]  (
> >>[82199.545109] &local->sta_mtx
> >>[82199.546426] ){+.+.+.}
> >>[82199.547430] , at:
> >>[82199.547990] [<ffffffffa0dffae6>] __sta_info_flush+0x86/0x190 [mac80211]
> >>[82199.553338]  #4:
> >>[82199.553788]  (
> >>[82199.554182] &ar->conf_mutex
> >>[82199.555503] ){+.+.+.}
> >>[82199.556504] , at:
> >>[82199.557049] [<ffffffffa12a3165>] ath10k_sta_state+0x205/0xbd0 [ath10k_core]
> >>[82199.562743] 3 locks held by kworker/u8:3/2064:
> >>[82199.565913]  #0:
> >>[82199.566358]  (
> >>[82199.566754] "%s""ath10k_wq"
> >>[82199.568072] ){.+.+.+}
> >>[82199.569076] , at:
> >>[82199.569614] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82199.574091]  #1:
> >>[82199.574538]  (
> >>[82199.574934] (&(&ar->debug.nop_dwork)->work)
> >>[82199.577641] ){+.+...}
> >>[82199.578643] , at:
> >>[82199.579179] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82199.583655]  #2:
> >>[82199.584103]  (
> >>[82199.584499] &ar->conf_mutex
> >>[82199.585816] ){+.+.+.}
> >>[82199.586821] , at:
> >>[82199.587360] [<ffffffffa12acbb4>] ath10k_debug_nop_dwork+0x24/0x80 [ath10k_core]
> >>[82199.593402] 4 locks held by kworker/0:2/2149:
> >>[82199.596483]  #0:
> >>[82199.596933]  (
> >>[82199.597324] "events_freezable"
> >>[82199.598903] ){.+.+..}
> >>[82199.599907] , at:
> >>[82199.600441] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82199.604919]  #1:
> >>[82199.605367]  (
> >>[82199.605765] (&local->restart_work)
> >>[82199.607690] ){+.+...}
> >>[82199.608694] , at:
> >>[82199.609228] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82199.613706]  #2:
> >>[82199.614153]  (
> >>[82199.614544] rtnl_mutex
> >>[82199.615429] ){+.+.+.}
> >>[82199.616433] , at:
> >>[82199.616970] [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82199.620668]  #3:
> >>[82199.621112]  (
> >>[82199.621503] &ar->conf_mutex
> >>[82199.622828] ){+.+.+.}
> >>[82199.623830] , at:
> >>[82199.624369] [<ffffffffa12a8686>] ath10k_start+0x26/0x5d0 [ath10k_core]
> >>[82199.629628] 3 locks held by kworker/3:3/2153:
> >>[82199.632709]  #0:
> >>[82199.633154]  (
> >>[82199.633545] "events"
> >>[82199.634257] ){.+.+.+}
> >>[82199.635261] , at:
> >>[82199.635799] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82199.640276]  #1:
> >>[82199.640726]  (
> >>[82199.641119] (linkwatch_work).work
> >>[82199.642958] ){+.+.+.}
> >>[82199.643962] , at:
> >>[82199.644506] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82199.648993]  #2:
> >>[82199.649438]  (
> >>[82199.649834] rtnl_mutex
> >>[82199.650718] ){+.+.+.}
> >>[82199.651722] , at:
> >>[82199.652256] [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82199.655955] 3 locks held by kworker/2:2/2984:
> >>[82199.659038]  #0:
> >>[82199.659483]  (
> >>[82199.659879] "%s"("ipv6_addrconf")
> >>[82199.661721] ){.+.+..}
> >>[82199.662733] , at:
> >>[82199.663270] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82199.667746]  #1:
> >>[82199.668194]  (
> >>[82199.668596] (addr_chk_work).work
> >>[82199.670349] ){+.+...}
> >>[82199.671353] , at:
> >>[82199.671891] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82199.676368]  #2:
> >>[82199.676821]  (
> >>[82199.677214] rtnl_mutex
> >>[82199.678100] ){+.+.+.}
> >>[82199.679104] , at:
> >>[82199.679642] [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82199.683342] 1 lock held by ip/3840:
> >>[82199.685557]  #0:
> >>[82199.686006]  (
> >>[82199.686397] rtnl_mutex
> >>[82199.687281] ){+.+.+.}
> >>[82199.688287] , at:
> >>[82199.688825] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>[82199.692869] 1 lock held by ip/3843:
> >>[82199.695084]  #0:
> >>[82199.695531]  (
> >>[82199.695932] rtnl_mutex
> >>[82199.696819] ){+.+.+.}
> >>[82199.697826] , at:
> >>[82199.698363] [<ffffffff8186959e>] netlink_dump+0x1e/0x290
> >>[82199.702407] 1 lock held by ip/3845:
> >>[82199.704621]  #0:
> >>[82199.705069]  (
> >>[82199.705464] rtnl_mutex
> >>[82199.706349] ){+.+.+.}
> >>[82199.707352] , at:
> >>[82199.707890] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>
> >>[82199.712145] =============================================
> >>
> >>[82199.716482] INFO: task kworker/3:3:2153 blocked for more than 180 seconds.
> >>[82199.722089]       Tainted: G        W       4.9.0-rc6+ #9
> >>[82199.726232] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> >>[82199.732798] kworker/3:3     D    0  2153      2 0x00000000
> >>[82199.737044] Workqueue: events linkwatch_event
> >>[82199.740140]  ffff8802114d6900 000000000000728c ffff880213dacc80 ffff8801d9490000
> >>[82199.746317]  ffff88021e3998d8 ffffc9000e8f3cd0 ffffffff819322eb 0000000000000006
> >>[82199.752515]  ffff880213dacc80 000000000e8f3cc8 ffff88021e3998d8 0000000000000000
> >>[82199.758699] Call Trace:
> >>[82199.759894]  [<ffffffff819322eb>] ? __schedule+0x2fb/0xb30
> >>[82199.764108]  [<ffffffff81932b58>] schedule+0x38/0x90
> >>[82199.767798]  [<ffffffff81932f20>] schedule_preempt_disabled+0x10/0x20
> >>[82199.772967]  [<ffffffff81934b15>] mutex_lock_nested+0x175/0x3f0
> >>[82199.777618]  [<ffffffff81841882>] ? rtnl_lock+0x12/0x20
> >>[82199.781570]  [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82199.785368]  [<ffffffff81849309>] linkwatch_event+0x9/0x30
> >>[82199.789602]  [<ffffffff8113a883>] process_one_work+0x1e3/0x740
> >>[82199.794179]  [<ffffffff8113a804>] ? process_one_work+0x164/0x740
> >>[82199.798953]  [<ffffffff8113ae26>] worker_thread+0x46/0x4f0
> >>[82199.803164]  [<ffffffff8113ade0>] ? process_one_work+0x740/0x740
> >>[82199.807915]  [<ffffffff8113ade0>] ? process_one_work+0x740/0x740
> >>[82199.812650]  [<ffffffff8114166a>] kthread+0xfa/0x110
> >>[82199.816340]  [<ffffffff81141570>] ? kthread_park+0x60/0x60
> >>[82199.820554]  [<ffffffff8193a1ea>] ret_from_fork+0x2a/0x40
> >>[82199.824679]
> >>Showing all locks held in the system:
> >>[82199.828330] 2 locks held by khungtaskd/37:
> >>[82199.831152]  #0:
> >>[82199.831602]  (
> >>[82199.831993] rcu_read_lock
> >>[82199.833136] ){......}
> >>[82199.834138] , at:
> >>[82199.834677] [<ffffffff811ebd5c>] watchdog+0x9c/0x600
> >>[82199.838374]  #1:
> >>[82199.838825]  (
> >>[82199.839216] tasklist_lock
> >>[82199.840360] ){.+.+..}
> >>[82199.841361] , at:
> >>[82199.841900] [<ffffffff8117576d>] debug_show_all_locks+0x3d/0x1a0
> >>[82199.846648] 2 locks held by agetty/1149:
> >>[82199.849296]  #0:
> >>[82199.849746]  (
> >>[82199.850142] &tty->ldisc_sem
> >>[82199.851467] ){++++.+}
> >>[82199.852472] , at:
> >>[82199.853010] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
> >>[82199.857225]  #1:
> >>[82199.857674]  (
> >>[82199.858068] &ldata->atomic_read_lock
> >>[82199.860166] ){+.+...}
> >>[82199.861167] , at:
> >>[82199.861707] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
> >>[82199.865581] 1 lock held by mission-control/1506:
> >>[82199.868920]  #0:
> >>[82199.869368]  (
> >>[82199.869765] rtnl_mutex
> >>[82199.870648] ){+.+.+.}
> >>[82199.871649] , at:
> >>[82199.872185] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>[82199.876230] 2 locks held by bash/1691:
> >>[82199.878706]  #0:
> >>[82199.879151]  (
> >>[82199.879547] &tty->ldisc_sem
> >>[82199.880864] ){++++.+}
> >>[82199.881867] , at:
> >>[82199.882403] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
> >>[82199.886619]  #1:
> >>[82199.887064]  (
> >>[82199.887460] &ldata->atomic_read_lock
> >>[82199.889557] ){+.+...}
> >>[82199.890560] , at:
> >>[82199.891098] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
> >>[82199.894974] 1 lock held by evolution-calen/1768:
> >>[82199.898317]  #0:
> >>[82199.898765]  (
> >>[82199.899159] rtnl_mutex
> >>[82199.900040] ){+.+.+.}
> >>[82199.901042] , at:
> >>[82199.901578] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>[82199.905627] 2 locks held by hostapd/4100:
> >>[82199.908361]  #0:
> >>[82199.908810]  (
> >>[82199.909203] cb_lock
> >>[82199.909825] ){++++++}
> >>[82199.910825] , at:
> >>[82199.911361] [<ffffffff8186d494>] genl_rcv+0x14/0x40
> >>[82199.914971]  #1:
> >>[82199.915419]  (
> >>[82199.915814] genl_mutex
> >>[82199.916697] ){+.+.+.}
> >>[82199.917698] , at:
> >>[82199.918234] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82199.922192] 2 locks held by hostapd/4392:
> >>[82199.924927]  #0:
> >>[82199.925374]  (
> >>[82199.925772] cb_lock
> >>[82199.926393] ){++++++}
> >>[82199.927398] , at:
> >>[82199.927935] [<ffffffff8186d494>] genl_rcv+0x14/0x40
> >>[82199.931544]  #1:
> >>[82199.931994]  (
> >>[82199.932385] genl_mutex
> >>[82199.933268] ){+.+.+.}
> >>[82199.934269] , at:
> >>[82199.934806] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82199.938760] 3 locks held by wpa_supplicant/4574:
> >>[82199.942100]  #0:
> >>[82199.942547]  (
> >>[82199.942944] cb_lock
> >>[82199.943563] ){++++++}
> >>[82199.944567] , at:
> >>[82199.945104] [<ffffffff8186d494>] genl_rcv+0x14/0x40
> >>[82199.948711]  #1:
> >>[82199.949158]  (
> >>[82199.949549] genl_mutex
> >>[82199.950433] ){+.+.+.}
> >>[82199.951437] , at:
> >>[82199.951977] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82199.955932]  #2:
> >>[82199.956379]  (
> >>[82199.956781] rtnl_mutex
> >>[82199.957664] ){+.+.+.}
> >>[82199.958670] , at:
> >>[82199.959204] [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82199.962903] 2 locks held by hostapd/4733:
> >>[82199.965639]  #0:
> >>[82199.966084]  (
> >>[82199.966480] cb_lock
> >>[82199.967101] ){++++++}
> >>[82199.968103] , at:
> >>[82199.968640] [<ffffffff8186d494>] genl_rcv+0x14/0x40
> >>[82199.972246]  #1:
> >>[82199.972695]  (
> >>[82199.973088] genl_mutex
> >>[82199.973970] ){+.+.+.}
> >>[82199.974970] , at:
> >>[82199.975506] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82199.979463] 2 locks held by bash/5322:
> >>[82199.981939]  #0:
> >>[82199.982396]  (
> >>[82199.982803] &tty->ldisc_sem
> >>[82199.984120] ){++++.+}
> >>[82199.985123] , at:
> >>[82199.985664] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
> >>[82199.989879]  #1:
> >>[82199.990325]  (
> >>[82199.990723] &ldata->atomic_read_lock
> >>[82199.992822] ){+.+...}
> >>[82199.993825] , at:
> >>[82199.994359] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
> >>[82199.998233] 2 locks held by bash/24789:
> >>[82200.000791]  #0:
> >>[82200.001239]  (
> >>[82200.001634] &tty->ldisc_sem
> >>[82200.002963] ){++++.+}
> >>[82200.003964] , at:
> >>[82200.004500] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
> >>[82200.008719]  #1:
> >>[82200.009164]  (
> >>[82200.009555] &ldata->atomic_read_lock
> >>[82200.011653] ){+.+...}
> >>[82200.012656] , at:
> >>[82200.013193] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
> >>[82200.017065] 5 locks held by kworker/u8:1/1965:
> >>[82200.020233]  #0:
> >>[82200.020682]  (
> >>[82200.021073] "%s"wiphy_name(local->hw.wiphy)
> >>[82200.023779] ){++++.+}
> >>[82200.024780] , at:
> >>[82200.025317] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82200.029794]  #1:
> >>[82200.030241]  (
> >>[82200.030642] (&sdata->work)
> >>[82200.031873] ){+.+.+.}
> >>[82200.032877] , at:
> >>[82200.033411] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82200.037888]  #2:
> >>[82200.038335]  (
> >>[82200.038730] &wdev->mtx
> >>[82200.039615] ){+.+.+.}
> >>[82200.041265] , at:
> >>[82200.041831] [<ffffffffa0e65557>] ieee80211_sta_work+0x47/0x1b50 [mac80211]
> >>[82200.047435]  #3:
> >>[82200.047887]  (
> >>[82200.048281] &local->sta_mtx
> >>[82200.049601] ){+.+.+.}
> >>[82200.050605] , at:
> >>[82200.051157] [<ffffffffa0dffae6>] __sta_info_flush+0x86/0x190 [mac80211]
> >>[82200.056501]  #4:
> >>[82200.056950]  (
> >>[82200.057343] &ar->conf_mutex
> >>[82200.058660] ){+.+.+.}
> >>[82200.059664] , at:
> >>[82200.060203] [<ffffffffa12a3165>] ath10k_sta_state+0x205/0xbd0 [ath10k_core]
> >>[82200.065897] 3 locks held by kworker/u8:3/2064:
> >>[82200.069064]  #0:
> >>[82200.069508]  (
> >>[82200.069904] "%s""ath10k_wq"
> >>[82200.071222] ){.+.+.+}
> >>[82200.072225] , at:
> >>[82200.072765] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82200.077239]  #1:
> >>[82200.077691]  (
> >>[82200.078084] (&(&ar->debug.nop_dwork)->work)
> >>[82200.080792] ){+.+...}
> >>[82200.081793] , at:
> >>[82200.082329] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82200.086806]  #2:
> >>[82200.087253]  (
> >>[82200.087648] &ar->conf_mutex
> >>[82200.088966] ){+.+.+.}
> >>[82200.089969] , at:
> >>[82200.090510] [<ffffffffa12acbb4>] ath10k_debug_nop_dwork+0x24/0x80 [ath10k_core]
> >>[82200.096551] 4 locks held by kworker/0:2/2149:
> >>[82200.099644]  #0:
> >>[82200.100089]  (
> >>[82200.100485] "events_freezable"
> >>[82200.102067] ){.+.+..}
> >>[82200.103070] , at:
> >>[82200.103604] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82200.108095]  #1:
> >>[82200.108542]  (
> >>[82200.108937] (&local->restart_work)
> >>[82200.110863] ){+.+...}
> >>[82200.111867] , at:
> >>[82200.112401] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82200.116882]  #2:
> >>[82200.117331]  (
> >>[82200.117729] rtnl_mutex
> >>[82200.118615] ){+.+.+.}
> >>[82200.119619] , at:
> >>[82200.120154] [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82200.123850]  #3:
> >>[82200.124297]  (
> >>[82200.124691] &ar->conf_mutex
> >>[82200.126010] ){+.+.+.}
> >>[82200.127015] , at:
> >>[82200.127553] [<ffffffffa12a8686>] ath10k_start+0x26/0x5d0 [ath10k_core]
> >>[82200.132814] 3 locks held by kworker/3:3/2153:
> >>[82200.135894]  #0:
> >>[82200.136339]  (
> >>[82200.136734] "events"
> >>[82200.137441] ){.+.+.+}
> >>[82200.138446] , at:
> >>[82200.138984] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82200.143461]  #1:
> >>[82200.143911]  (
> >>[82200.144304] (linkwatch_work).work
> >>[82200.146143] ){+.+.+.}
> >>[82200.147146] , at:
> >>[82200.147686] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82200.152162]  #2:
> >>[82200.152606]  (
> >>[82200.153008] rtnl_mutex
> >>[82200.153896] ){+.+.+.}
> >>[82200.154899] , at:
> >>[82200.155435] [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82200.159131] 3 locks held by kworker/2:2/2984:
> >>[82200.162214]  #0:
> >>[82200.162665]  (
> >>[82200.163061] "%s"("ipv6_addrconf")
> >>[82200.164903] ){.+.+..}
> >>[82200.165907] , at:
> >>[82200.166441] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82200.170916]  #1:
> >>[82200.171361]  (
> >>[82200.171761] (addr_chk_work).work
> >>[82200.173511] ){+.+...}
> >>[82200.174515] , at:
> >>[82200.175053] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82200.179529]  #2:
> >>[82200.179980]  (
> >>[82200.180374] rtnl_mutex
> >>[82200.181257] ){+.+.+.}
> >>[82200.182260] , at:
> >>[82200.182797] [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82200.186496] 1 lock held by ip/3840:
> >>[82200.188709]  #0:
> >>[82200.189156]  (
> >>[82200.189547] rtnl_mutex
> >>[82200.190431] ){+.+.+.}
> >>[82200.191432] , at:
> >>[82200.191969] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>[82200.196010] 1 lock held by ip/3843:
> >>[82200.198223]  #0:
> >>[82200.198671]  (
> >>[82200.199065] rtnl_mutex
> >>[82200.199946] ){+.+.+.}
> >>[82200.200947] , at:
> >>[82200.201492] [<ffffffff8186959e>] netlink_dump+0x1e/0x290
> >>[82200.205536] 1 lock held by ip/3845:
> >>[82200.207751]  #0:
> >>[82200.208203]  (
> >>[82200.208599] rtnl_mutex
> >>[82200.209480] ){+.+.+.}
> >>[82200.210481] , at:
> >>[82200.211018] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>
> >>[82200.215271] =============================================
> >>
> >>[82200.219605] INFO: task kworker/2:2:2984 blocked for more than 180 seconds.
> >>[82200.225215]       Tainted: G        W       4.9.0-rc6+ #9
> >>[82200.229343] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> >>[82200.235900] kworker/2:2     D    0  2984      2 0x00000000
> >>[82200.240157] Workqueue: ipv6_addrconf addrconf_verify_work [ipv6]
> >>[82200.244902]  ffff880210f75500 00000000000023ac ffff880214de2640 ffff880203aacc80
> >>[82200.251081]  ffff88021e3198d8 ffffc9000f3c3cd0 ffffffff819322eb 0000000000000006
> >>[82200.257259]  ffff880203aad4a8 000000000f3c3cc8 ffff88021e3198d8 0000000000000000
> >>[82200.263451] Call Trace:
> >>[82200.264630]  [<ffffffff819322eb>] ? __schedule+0x2fb/0xb30
> >>[82200.268840]  [<ffffffff81932b58>] schedule+0x38/0x90
> >>[82200.272532]  [<ffffffff81932f20>] schedule_preempt_disabled+0x10/0x20
> >>[82200.278056]  [<ffffffff81934b15>] mutex_lock_nested+0x175/0x3f0
> >>[82200.282711]  [<ffffffff81841882>] ? rtnl_lock+0x12/0x20
> >>[82200.286664]  [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82200.290452]  [<ffffffffa0014539>] addrconf_verify_work+0x9/0x20 [ipv6]
> >>[82200.295706]  [<ffffffff8113a883>] process_one_work+0x1e3/0x740
> >>[82200.300269]  [<ffffffff8113a804>] ? process_one_work+0x164/0x740
> >>[82200.305004]  [<ffffffff8113ae26>] worker_thread+0x46/0x4f0
> >>[82200.309218]  [<ffffffff8113ade0>] ? process_one_work+0x740/0x740
> >>[82200.313952]  [<ffffffff8113ade0>] ? process_one_work+0x740/0x740
> >>[82200.318688]  [<ffffffff8114166a>] kthread+0xfa/0x110
> >>[82200.322378]  [<ffffffff81141570>] ? kthread_park+0x60/0x60
> >>[82200.326591]  [<ffffffff8193a1ea>] ret_from_fork+0x2a/0x40
> >>[82200.330715]
> >>Showing all locks held in the system:
> >>[82200.334348] 2 locks held by khungtaskd/37:
> >>[82200.337171]  #0:
> >>[82200.337619]  (
> >>[82200.338026] rcu_read_lock
> >>[82200.339172] ){......}
> >>[82200.340173] , at:
> >>[82200.340717] [<ffffffff811ebd5c>] watchdog+0x9c/0x600
> >>[82200.344414]  #1:
> >>[82200.344864]  (
> >>[82200.345257] tasklist_lock
> >>[82200.346401] ){.+.+..}
> >>[82200.347408] , at:
> >>[82200.347946] [<ffffffff8117576d>] debug_show_all_locks+0x3d/0x1a0
> >>[82200.352691] 2 locks held by agetty/1149:
> >>[82200.355340]  #0:
> >>[82200.355792]  (
> >>[82200.356186] &tty->ldisc_sem
> >>[82200.357505] ){++++.+}
> >>[82200.358509] , at:
> >>[82200.359047] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
> >>[82200.363265]  #1:
> >>[82200.363718]  (
> >>[82200.364112] &ldata->atomic_read_lock
> >>[82200.366212] ){+.+...}
> >>[82200.367220] , at:
> >>[82200.367757] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
> >>[82200.371649] 1 lock held by mission-control/1506:
> >>[82200.374991]  #0:
> >>[82200.375439]  (
> >>[82200.375838] rtnl_mutex
> >>[82200.376722] ){+.+.+.}
> >>[82200.377726] , at:
> >>[82200.378260] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>[82200.382305] 2 locks held by bash/1691:
> >>[82200.384781]  #0:
> >>[82200.385226]  (
> >>[82200.385616] &tty->ldisc_sem
> >>[82200.386936] ){++++.+}
> >>[82200.387941] , at:
> >>[82200.388474] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
> >>[82200.392692]  #1:
> >>[82200.393140]  (
> >>[82200.393536] &ldata->atomic_read_lock
> >>[82200.395636] ){+.+...}
> >>[82200.396642] , at:
> >>[82200.397175] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
> >>[82200.401049] 1 lock held by evolution-calen/1768:
> >>[82200.404391]  #0:
> >>[82200.404843]  (
> >>[82200.405239] rtnl_mutex
> >>[82200.406123] ){+.+.+.}
> >>[82200.407129] , at:
> >>[82200.407668] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>[82200.411719] 2 locks held by hostapd/4100:
> >>[82200.414457]  #0:
> >>[82200.414909]  (
> >>[82200.415305] cb_lock
> >>[82200.415927] ){++++++}
> >>[82200.416928] , at:
> >>[82200.417462] [<ffffffff8186d494>] genl_rcv+0x14/0x40
> >>[82200.421072]  #1:
> >>[82200.421516]  (
> >>[82200.421912] genl_mutex
> >>[82200.422797] ){+.+.+.}
> >>[82200.423801] , at:
> >>[82200.424334] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82200.428293] 2 locks held by hostapd/4392:
> >>[82200.431028]  #0:
> >>[82200.431476]  (
> >>[82200.431876] cb_lock
> >>[82200.432498] ){++++++}
> >>[82200.433504] , at:
> >>[82200.434042] [<ffffffff8186d494>] genl_rcv+0x14/0x40
> >>[82200.437651]  #1:
> >>[82200.438095]  (
> >>[82200.438487] genl_mutex
> >>[82200.439371] ){+.+.+.}
> >>[82200.440375] , at:
> >>[82200.440915] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82200.444876] 3 locks held by wpa_supplicant/4574:
> >>[82200.448221]  #0:
> >>[82200.448670]  (
> >>[82200.449063] cb_lock
> >>[82200.449688] ){++++++}
> >>[82200.450694] , at:
> >>[82200.451226] [<ffffffff8186d494>] genl_rcv+0x14/0x40
> >>[82200.454837]  #1:
> >>[82200.455282]  (
> >>[82200.455688] genl_mutex
> >>[82200.456570] ){+.+.+.}
> >>[82200.457575] , at:
> >>[82200.458113] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82200.462069]  #2:
> >>[82200.462514]  (
> >>[82200.462909] rtnl_mutex
> >>[82200.463806] ){+.+.+.}
> >>[82200.464812] , at:
> >>[82200.465345] [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82200.469045] 2 locks held by hostapd/4733:
> >>[82200.471785]  #0:
> >>[82200.472232]  (
> >>[82200.472623] cb_lock
> >>[82200.473248] ){++++++}
> >>[82200.474253] , at:
> >>[82200.474792] [<ffffffff8186d494>] genl_rcv+0x14/0x40
> >>[82200.478399]  #1:
> >>[82200.478851]  (
> >>[82200.479244] genl_mutex
> >>[82200.480128] ){+.+.+.}
> >>[82200.481135] , at:
> >>[82200.481672] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
> >>[82200.485629] 2 locks held by bash/5322:
> >>[82200.488100]  #0:
> >>[82200.488547]  (
> >>[82200.488943] &tty->ldisc_sem
> >>[82200.490260] ){++++.+}
> >>[82200.491265] , at:
> >>[82200.491802] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
> >>[82200.496019]  #1:
> >>[82200.496464]  (
> >>[82200.496860] &ldata->atomic_read_lock
> >>[82200.498958] ){+.+...}
> >>[82200.499963] , at:
> >>[82200.500496] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
> >>[82200.504367] 2 locks held by bash/24789:
> >>[82200.506929]  #0:
> >>[82200.507376]  (
> >>[82200.507775] &tty->ldisc_sem
> >>[82200.509094] ){++++.+}
> >>[82200.510098] , at:
> >>[82200.510632] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
> >>[82200.514856]  #1:
> >>[82200.515302]  (
> >>[82200.515701] &ldata->atomic_read_lock
> >>[82200.517800] ){+.+...}
> >>[82200.518804] , at:
> >>[82200.519337] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
> >>[82200.523229] 5 locks held by kworker/u8:1/1965:
> >>[82200.526402]  #0:
> >>[82200.526854]  (
> >>[82200.527248] "%s"wiphy_name(local->hw.wiphy)
> >>[82200.529957] ){++++.+}
> >>[82200.530961] , at:
> >>[82200.531496] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82200.535975]  #1:
> >>[82200.536420]  (
> >>[82200.536819] (&sdata->work)
> >>[82200.538051] ){+.+.+.}
> >>[82200.539055] , at:
> >>[82200.539590] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82200.544079]  #2:
> >>[82200.544526]  (
> >>[82200.544947] &wdev->mtx
> >>[82200.545835] ){+.+.+.}
> >>[82200.546843] , at:
> >>[82200.547406] [<ffffffffa0e65557>] ieee80211_sta_work+0x47/0x1b50 [mac80211]
> >>[82200.553015]  #3:
> >>[82200.553464]  (
> >>[82200.553863] &local->sta_mtx
> >>[82200.555182] ){+.+.+.}
> >>[82200.556186] , at:
> >>[82200.556745] [<ffffffffa0dffae6>] __sta_info_flush+0x86/0x190 [mac80211]
> >>[82200.562092]  #4:
> >>[82200.562537]  (
> >>[82200.562933] &ar->conf_mutex
> >>[82200.564249] ){+.+.+.}
> >>[82200.565900] , at:
> >>[82200.566441] [<ffffffffa12a3165>] ath10k_sta_state+0x205/0xbd0 [ath10k_core]
> >>[82200.572139] 3 locks held by kworker/u8:3/2064:
> >>[82200.575309]  #0:
> >>[82200.575758]  (
> >>[82200.576154] "%s""ath10k_wq"
> >>[82200.577471] ){.+.+.+}
> >>[82200.578474] , at:
> >>[82200.579023] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82200.583500]  #1:
> >>[82200.583952]  (
> >>[82200.584342] (&(&ar->debug.nop_dwork)->work)
> >>[82200.587049] ){+.+...}
> >>[82200.588050] , at:
> >>[82200.588587] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82200.593063]  #2:
> >>[82200.593511]  (
> >>[82200.593907] &ar->conf_mutex
> >>[82200.595223] ){+.+.+.}
> >>[82200.596228] , at:
> >>[82200.596772] [<ffffffffa12acbb4>] ath10k_debug_nop_dwork+0x24/0x80 [ath10k_core]
> >>[82200.602813] 4 locks held by kworker/0:2/2149:
> >>[82200.605898]  #0:
> >>[82200.606346]  (
> >>[82200.606742] "events_freezable"
> >>[82200.608318] ){.+.+..}
> >>[82200.609325] , at:
> >>[82200.609863] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82200.614339]  #1:
> >>[82200.614791]  (
> >>[82200.615188] (&local->restart_work)
> >>[82200.617118] ){+.+...}
> >>[82200.618120] , at:
> >>[82200.618661] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82200.623138]  #2:
> >>[82200.623583]  (
> >>[82200.623978] rtnl_mutex
> >>[82200.624862] ){+.+.+.}
> >>[82200.625866] , at:
> >>[82200.626402] [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82200.630098]  #3:
> >>[82200.630543]  (
> >>[82200.630938] &ar->conf_mutex
> >>[82200.632255] ){+.+.+.}
> >>[82200.633261] , at:
> >>[82200.633804] [<ffffffffa12a8686>] ath10k_start+0x26/0x5d0 [ath10k_core]
> >>[82200.639063] 3 locks held by kworker/3:3/2153:
> >>[82200.642147]  #0:
> >>[82200.642594]  (
> >>[82200.642993] "events"
> >>[82200.643709] ){.+.+.+}
> >>[82200.644725] , at:
> >>[82200.645261] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82200.649741]  #1:
> >>[82200.650189]  (
> >>[82200.650580] (linkwatch_work).work
> >>[82200.652421] ){+.+.+.}
> >>[82200.653423] , at:
> >>[82200.653961] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82200.658440]  #2:
> >>[82200.658890]  (
> >>[82200.659281] rtnl_mutex
> >>[82200.660166] ){+.+.+.}
> >>[82200.661170] , at:
> >>[82200.661707] [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82200.665405] 3 locks held by kworker/2:2/2984:
> >>[82200.668486]  #0:
> >>[82200.668934]  (
> >>[82200.669327] "%s"("ipv6_addrconf")
> >>[82200.671166] ){.+.+..}
> >>[82200.672174] , at:
> >>[82200.672712] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82200.677187]  #1:
> >>[82200.677632]  (
> >>[82200.678033] (addr_chk_work).work
> >>[82200.679787] ){+.+...}
> >>[82200.680791] , at:
> >>[82200.681324] [<ffffffff8113a804>] process_one_work+0x164/0x740
> >>[82200.685804]  #2:
> >>[82200.686251]  (
> >>[82200.686647] rtnl_mutex
> >>[82200.687529] ){+.+.+.}
> >>[82200.688533] , at:
> >>[82200.689073] [<ffffffff81841882>] rtnl_lock+0x12/0x20
> >>[82200.692771] 1 lock held by ip/3840:
> >>[82200.694985]  #0:
> >>[82200.695433]  (
> >>[82200.695834] rtnl_mutex
> >>[82200.696720] ){+.+.+.}
> >>[82200.697725] , at:
> >>[82200.698258] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>[82200.702304] 1 lock held by ip/3843:
> >>[82200.704518]  #0:
> >>[82200.704970]  (
> >>[82200.705366] rtnl_mutex
> >>[82200.706248] ){+.+.+.}
> >>[82200.707251] , at:
> >>[82200.707790] [<ffffffff8186959e>] netlink_dump+0x1e/0x290
> >>[82200.711830] 1 lock held by ip/3845:
> >>[82200.714044]  #0:
> >>[82200.714489]  (
> >>[82200.714885] rtnl_mutex
> >>[82200.715769] ){+.+.+.}
> >>[82200.716773] , at:
> >>[82200.717307] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
> >>
> >>[82200.721567] =============================================
> >>
> >
> >regards,
> >shafi
> >
> 
> -- 
> Ben Greear <greearb@candelatech.com>
> Candela Technologies Inc  http://www.candelatech.com

^ permalink raw reply

* Re: [PATCH 03/12] brcmfmac: move pno helper functions in separate source file
From: Kalle Valo @ 2016-11-29 14:54 UTC (permalink / raw)
  To: Rafał Miłecki; +Cc: Arend Van Spriel, Johannes Berg, linux-wireless
In-Reply-To: <CACna6rx20tvodySME7+oeSbp_MmLDBta0C92tihEVK3GJkJ77w@mail.gmail.com>

Rafa=C5=82 Mi=C5=82ecki <zajec5@gmail.com> writes:

> On 29 November 2016 at 10:23, Arend Van Spriel
> <arend.vanspriel@broadcom.com> wrote:
>> On 29-11-2016 8:57, Johannes Berg wrote:
>>> On Tue, 2016-11-29 at 08:08 +0100, Rafa=C5=82 Mi=C5=82ecki wrote:
>>>> On 23 November 2016 at 11:25, Arend van Spriel
>>>> <arend.vanspriel@broadcom.com> wrote:
>>>>>
>>>>> Introducing new source file for pno related functionality. Moving
>>>>> existing pno functions.
>>>>
>>>> Let me ask one basic question as I'm curious: what that PNO stands
>>>> for? I couldn't find it explained in the code.
>>>
>>> It's an Android term - Preferred Network Offload(ing?)
>>
>> Yeah. The module is called pfn in our firmware, which stands for
>> preferred network. So not sure whether it was a BRCM term morphed into
>> Android term or vice versa.
>>
>> Kalle,
>>
>> If needed I could drop the use of the term and resubmit the series.
>
> I don't have anything against it, I was just trying to understand that
> part of driver (which makes more sense now, thanks).

I don't have any problems as these are already implemented, you are only
moving code around. But if you were adding a new feature to the driver
when an explanation for the acronym is very much preferred.

--=20
Kalle Valo

^ permalink raw reply

* Re: [PATCH] mmc: pwrseq: add support for Marvell SD8787 chip
From: Rob Herring @ 2016-11-29 14:51 UTC (permalink / raw)
  To: Ulf Hansson
  Cc: Matt Ranostay, linux-wireless@vger.kernel.org,
	linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
	linux-mmc@vger.kernel.org, Tony Lindgren, Mark Rutland,
	Srinivas Kandagatla
In-Reply-To: <CAPDyKFr=TE+EuZ9rZV3ygsjBFN_mRrE2imkFa-wQs_ykM5d+cQ@mail.gmail.com>

On Mon, Nov 28, 2016 at 9:54 AM, Ulf Hansson <ulf.hansson@linaro.org> wrote:
> [...]
>
>>> +
>>> +Example:
>>> +
>>> +     wifi_pwrseq: wifi_pwrseq {
>>> +             compatible = "mmc-pwrseq-sd8787";
>>> +             pwrdn-gpio = <&twl_gpio 0 GPIO_ACTIVE_LOW>;
>>> +             reset-gpio = <&twl_gpio 1 GPIO_ACTIVE_LOW>;
>>> +     }
>>> diff --git a/Documentation/devicetree/bindings/net/wireless/marvell-sd8xxx.txt b/Documentation/devicetree/bindings/net/wireless/marvell-sd8xxx.txt
>>> index c421aba0a5bc..08fd65d35725 100644
>>> --- a/Documentation/devicetree/bindings/net/wireless/marvell-sd8xxx.txt
>>> +++ b/Documentation/devicetree/bindings/net/wireless/marvell-sd8xxx.txt
>>> @@ -32,6 +32,9 @@ Optional properties:
>>>                so that the wifi chip can wakeup host platform under certain condition.
>>>                during system resume, the irq will be disabled to make sure
>>>                unnecessary interrupt is not received.
>>> +  - vmmc-supply: a phandle of a regulator, supplying VCC to the card
>>
>> This is why pwrseq is wrong. You have some properties in the card node
>> and some in pwrseq node. Everything should be in the card node.
>
> Put "all" in the card node, just doesn't work for MMC. Particular in
> cases when we have removable cards, as then it would be wrong to have
> a card node.

When is there a problem with removable cards? The connector is
standard and everything needed (CD, VMMC, VDDIO, etc.) is defined in
the host controller node. If that isn't sufficient, then we should
start defining a connector node.

> The mmc pwrseq DT bindings just follows the legacy approach for MMC
> and that's why the pwrseq handle is at the controller node. Yes, would
> could have done it differently, but this is the case now, so we will
> have to accept that.

We're stuck with supporting the existing cases. That doesn't mean
we're stuck with the same thing for new cases.

Rob

^ permalink raw reply

* Re: Deadlock in hacked 4.9.0-rc6+ kernel.
From: Ben Greear @ 2016-11-29 14:50 UTC (permalink / raw)
  To: Mohammed Shafi Shajakhan; +Cc: linux-wireless@vger.kernel.org
In-Reply-To: <20161129073443.GC7255@atheros-ThinkPad-T61>



On 11/28/2016 11:34 PM, Mohammed Shafi Shajakhan wrote:
> Hi Ben,
>
> On Mon, Nov 28, 2016 at 10:52:44AM -0800, Ben Greear wrote:
>> I ported forward my patch set to the 4.9 kernel, and I am seeing lockups fairly
>> often.  As always, could be something I added locally, but in case someone sees
>> similar, then maybe I can reproduce it quicker and help track this down since my
>> test config uses many virtual stations and virtual APs.
>
> [shafi] does this happens with a firmware crash (or) hardware restart ?, please
> let us know, we have a potential fix for the same and we will send the fix for
> linux wireless review soon, else please ignore.

It does look like the FW restarted, but not sure if that was due to crash or
because all vdevs were admin-down for some reason.

Thanks,
Ben

>
>>
>> And, if someone knows the magic trick to make dmesg output from lockdep
>> not be so split up, please let me know.
>>
>>
>> [81871.799595] ath10k_pci 0000:05:00.0: boot warm reset complete
>> [81873.983645] sta559: Failed to send nullfunc to AP 04:f0:21:0f:3c:3c after 1000ms, disconnecting
>> [81873.991198] ath10k_pci 0000:05:00.0: mac ampdu vdev_id 49 sta 04:f0:21:0f:3c:3c tid 6 action 1
>> [82195.484265] INFO: task mission-control:1506 blocked for more than 180 seconds.
>> [82195.490228]       Tainted: G        W       4.9.0-rc6+ #9
>> [82195.494367] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
>> [82195.500922] mission-control D    0  1506      1 0x00000000
>> [82195.505152]  ffff8801f1c3a300 0000000000002629 ffff880214de2640 ffff8801f2f38000
>> [82195.511330]  ffff88021e3198d8 ffffc90003867c80 ffffffff819322eb 0000000000000006
>> [82195.518230]  ffff8801f2f38828 0000000003867c78 ffff88021e3198d8 0000000000000000
>> [82195.525121] Call Trace:
>> [82195.526300]  [<ffffffff819322eb>] ? __schedule+0x2fb/0xb30
>> [82195.530862]  [<ffffffff81932b58>] schedule+0x38/0x90
>> [82195.534552]  [<ffffffff81932f20>] schedule_preempt_disabled+0x10/0x20
>> [82195.540073]  [<ffffffff81934b15>] mutex_lock_nested+0x175/0x3f0
>> [82195.544723]  [<ffffffff81842df6>] ? rtnetlink_rcv+0x16/0x30
>> [82195.549424]  [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>> [82195.553555]  [<ffffffff8186c76d>] netlink_unicast+0x1cd/0x2e0
>> [82195.558414]  [<ffffffff8186c6e9>] ? netlink_unicast+0x149/0x2e0
>> [82195.563062]  [<ffffffff8186cb62>] netlink_sendmsg+0x2e2/0x390
>> [82195.567889]  [<ffffffff812dcb98>] ? __fget+0x108/0x1f0
>> [82195.571755]  [<ffffffff8180ca73>] sock_sendmsg+0x33/0x40
>> [82195.575791]  [<ffffffff8180d041>] SYSC_sendto+0x101/0x190
>> [82195.580258]  [<ffffffff813ea076>] ? security_file_permission+0x96/0xb0
>> [82195.585521]  [<ffffffff812ba7e9>] ? rw_verify_area+0x49/0xb0
>> [82195.589909]  [<ffffffff811771d9>] ? trace_hardirqs_on_caller+0x129/0x1b0
>> [82195.595364]  [<ffffffff8100301a>] ? trace_hardirqs_on_thunk+0x1a/0x1c
>> [82195.600538]  [<ffffffff8180dee9>] SyS_sendto+0x9/0x10
>> [82195.604319]  [<ffffffff81939f45>] entry_SYSCALL_64_fastpath+0x23/0xc6
>> [82195.609502]
>> Showing all locks held in the system:
>> [82195.613134] 2 locks held by khungtaskd/37:
>> [82195.615958]  #0:
>> [82195.616408]  (
>> [82195.616802] rcu_read_lock
>> [82195.617946] ){......}
>> [82195.618983] , at:
>> [82195.619522] [<ffffffff811ebd5c>] watchdog+0x9c/0x600
>> [82195.623219]  #1:
>> [82195.623666]  (
>> [82195.624060] tasklist_lock
>> [82195.625208] ){.+.+..}
>> [82195.626213] , at:
>> [82195.626748] [<ffffffff8117576d>] debug_show_all_locks+0x3d/0x1a0
>> [82195.631513] 2 locks held by agetty/1149:
>> [82195.634160]  #0:
>> [82195.634610]  (
>> [82195.635001] &tty->ldisc_sem
>> [82195.636320] ){++++.+}
>> [82195.637323] , at:
>> [82195.637859] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
>> [82195.642077]  #1:
>> [82195.642528]  (
>> [82195.642922] &ldata->atomic_read_lock
>> [82195.645027] ){+.+...}
>> [82195.646030] , at:
>> [82195.646569] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
>> [82195.650442] 1 lock held by mission-control/1506:
>> [82195.653800]  #0:
>> [82195.654249]  (
>> [82195.654645] rtnl_mutex
>> [82195.655527] ){+.+.+.}
>> [82195.656534] , at:
>> [82195.657068] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>> [82195.661113] 2 locks held by bash/1691:
>> [82195.663586]  #0:
>> [82195.664033]  (
>> [82195.664433] &tty->ldisc_sem
>> [82195.665750] ){++++.+}
>> [82195.666754] , at:
>> [82195.667294] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
>> [82195.671509]  #1:
>> [82195.671954]  (
>> [82195.672349] &ldata->atomic_read_lock
>> [82195.674447] ){+.+...}
>> [82195.675451] , at:
>> [82195.675987] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
>> [82195.679857] 1 lock held by evolution-calen/1768:
>> [82195.683200]  #0:
>> [82195.683649]  (
>> [82195.684040] rtnl_mutex
>> [82195.684925] ){+.+.+.}
>> [82195.685930] , at:
>> [82195.686467] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>> [82195.690514] 2 locks held by hostapd/4100:
>> [82195.693249]  #0:
>> [82195.693694]  (
>> [82195.694090] cb_lock
>> [82195.694711] ){++++++}
>> [82195.695741] , at:
>> [82195.696279] [<ffffffff8186d494>] genl_rcv+0x14/0x40
>> [82195.699888]  #1:
>> [82195.700338]  (
>> [82195.700731] genl_mutex
>> [82195.701616] ){+.+.+.}
>> [82195.702619] , at:
>> [82195.703155] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82195.707113] 2 locks held by hostapd/4392:
>> [82195.709847]  #0:
>> [82195.710301]  (
>> [82195.710695] cb_lock
>> [82195.711317] ){++++++}
>> [82195.712324] , at:
>> [82195.712857] [<ffffffff8186d494>] genl_rcv+0x14/0x40
>> [82195.716467]  #1:
>> [82195.716911]  (
>> [82195.717306] genl_mutex
>> [82195.718186] ){+.+.+.}
>> [82195.719193] , at:
>> [82195.719727] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82195.723682] 3 locks held by wpa_supplicant/4574:
>> [82195.727028]  #0:
>> [82195.727480]  (
>> [82195.727871] cb_lock
>> [82195.728494] ){++++++}
>> [82195.729501] , at:
>> [82195.730034] [<ffffffff8186d494>] genl_rcv+0x14/0x40
>> [82195.733644]  #1:
>> [82195.734089]  (
>> [82195.734489] genl_mutex
>> [82195.735371] ){+.+.+.}
>> [82195.736377] , at:
>> [82195.736910] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82195.740867]  #2:
>> [82195.741316]  (
>> [82195.741712] rtnl_mutex
>> [82195.742595] ){+.+.+.}
>> [82195.743601] , at:
>> [82195.744135] [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82195.747833] 2 locks held by hostapd/4733:
>> [82195.750566]  #0:
>> [82195.751014]  (
>> [82195.751409] cb_lock
>> [82195.752029] ){++++++}
>> [82195.753033] , at:
>> [82195.753570] [<ffffffff8186d494>] genl_rcv+0x14/0x40
>> [82195.757177]  #1:
>> [82195.757625]  (
>> [82195.758018] genl_mutex
>> [82195.758902] ){+.+.+.}
>> [82195.759905] , at:
>> [82195.760444] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82195.764400] 2 locks held by bash/5322:
>> [82195.766874]  #0:
>> [82195.767325]  (
>> [82195.767718] &tty->ldisc_sem
>> [82195.769036] ){++++.+}
>> [82195.770040] , at:
>> [82195.770580] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
>> [82195.774795]  #1:
>> [82195.775246]  (
>> [82195.775640] &ldata->atomic_read_lock
>> [82195.777738] ){+.+...}
>> [82195.778744] , at:
>> [82195.779283] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
>> [82195.783152] 2 locks held by bash/24789:
>> [82195.786358]  #0:
>> [82195.786802]  (
>> [82195.787198] &tty->ldisc_sem
>> [82195.788515] ){++++.+}
>> [82195.789519] , at:
>> [82195.790052] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
>> [82195.794271]  #1:
>> [82195.794718]  (
>> [82195.795109] &ldata->atomic_read_lock
>> [82195.797207] ){+.+...}
>> [82195.798212] , at:
>> [82195.798749] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
>> [82195.802624] 5 locks held by kworker/u8:1/1965:
>> [82195.805792]  #0:
>> [82195.806240]  (
>> [82195.806632] "%s"wiphy_name(local->hw.wiphy)
>> [82195.809338] ){++++.+}
>> [82195.810339] , at:
>> [82195.810877] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82195.815353]  #1:
>> [82195.815800]  (
>> [82195.816196] (&sdata->work)
>> [82195.817425] ){+.+.+.}
>> [82195.818430] , at:
>> [82195.818964] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82195.823443]  #2:
>> [82195.823890]  (
>> [82195.824290] &wdev->mtx
>> [82195.825170] ){+.+.+.}
>> [82195.826175] , at:
>> [82195.826753] [<ffffffffa0e65557>] ieee80211_sta_work+0x47/0x1b50 [mac80211]
>> [82195.832359]  #3:
>> [82195.832809]  (
>> [82195.833203] &local->sta_mtx
>> [82195.834519] ){+.+.+.}
>> [82195.835525] , at:
>> [82195.836072] [<ffffffffa0dffae6>] __sta_info_flush+0x86/0x190 [mac80211]
>> [82195.841418]  #4:
>> [82195.841863]  (
>> [82195.842258] &ar->conf_mutex
>> [82195.843578] ){+.+.+.}
>> [82195.844582] , at:
>> [82195.845129] [<ffffffffa12a3165>] ath10k_sta_state+0x205/0xbd0 [ath10k_core]
>> [82195.850823] 3 locks held by kworker/u8:3/2064:
>> [82195.853995]  #0:
>> [82195.854443]  (
>> [82195.854834] "%s""ath10k_wq"
>> [82195.856150] ){.+.+.+}
>> [82195.857151] , at:
>> [82195.857689] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82195.862166]  #1:
>> [82195.862614]  (
>> [82195.863008] (&(&ar->debug.nop_dwork)->work)
>> [82195.865714] ){+.+...}
>> [82195.866721] , at:
>> [82195.867264] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82195.871738]  #2:
>> [82195.872182]  (
>> [82195.872577] &ar->conf_mutex
>> [82195.873896] ){+.+.+.}
>> [82195.874899] , at:
>> [82195.875445] [<ffffffffa12acbb4>] ath10k_debug_nop_dwork+0x24/0x80 [ath10k_core]
>> [82195.881482] 4 locks held by kworker/0:2/2149:
>> [82195.884563]  #0:
>> [82195.885011]  (
>> [82195.885409] "events_freezable"
>> [82195.886986] ){.+.+..}
>> [82195.887990] , at:
>> [82195.888530] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82195.893006]  #1:
>> [82195.893455]  (
>> [82195.893846] (&local->restart_work)
>> [82195.895772] ){+.+...}
>> [82195.896773] , at:
>> [82195.897314] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82195.901790]  #2:
>> [82195.902242]  (
>> [82195.902633] rtnl_mutex
>> [82195.903517] ){+.+.+.}
>> [82195.904523] , at:
>> [82195.905057] [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82195.908753]  #3:
>> [82195.909198]  (
>> [82195.909593] &ar->conf_mutex
>> [82195.910911] ){+.+.+.}
>> [82195.911915] , at:
>> [82195.912457] [<ffffffffa12a8686>] ath10k_start+0x26/0x5d0 [ath10k_core]
>> [82195.917716] 3 locks held by kworker/3:3/2153:
>> [82195.920797]  #0:
>> [82195.921251]  (
>> [82195.921645] "events"
>> [82195.922353] ){.+.+.+}
>> [82195.923354] , at:
>> [82195.923890] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82195.928366]  #1:
>> [82195.928813]  (
>> [82195.929204] (linkwatch_work).work
>> [82195.931043] ){+.+.+.}
>> [82195.932047] , at:
>> [82195.932584] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82195.937062]  #2:
>> [82195.937511]  (
>> [82195.937902] rtnl_mutex
>> [82195.938785] ){+.+.+.}
>> [82195.939791] , at:
>> [82195.940328] [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82195.944024] 3 locks held by kworker/2:2/2984:
>> [82195.947106]  #0:
>> [82195.947555]  (
>> [82195.947946] "%s"("ipv6_addrconf")
>> [82195.949785] ){.+.+..}
>> [82195.950789] , at:
>> [82195.951326] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82195.955803]  #1:
>> [82195.956257]  (
>> [82195.956651] (addr_chk_work).work
>> [82195.958402] ){+.+...}
>> [82195.959406] , at:
>> [82195.959941] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82195.964419]  #2:
>> [82195.964867]  (
>> [82195.965267] rtnl_mutex
>> [82195.966146] ){+.+.+.}
>> [82195.967151] , at:
>> [82195.967688] [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82195.971388] 1 lock held by ip/3840:
>> [82195.973602]  #0:
>> [82195.974049]  (
>> [82195.974447] rtnl_mutex
>> [82195.975331] ){+.+.+.}
>> [82195.976332] , at:
>> [82195.976867] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>> [82195.980910] 1 lock held by ip/3843:
>> [82195.983121]  #0:
>> [82195.983572]  (
>> [82195.983963] rtnl_mutex
>> [82195.984847] ){+.+.+.}
>> [82195.985848] , at:
>> [82195.986385] [<ffffffff8186959e>] netlink_dump+0x1e/0x290
>> [82195.990430] 1 lock held by ip/3845:
>> [82195.992641]  #0:
>> [82195.993088]  (
>> [82195.993483] rtnl_mutex
>> [82195.994366] ){+.+.+.}
>> [82195.995368] , at:
>> [82195.995903] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>>
>> [82196.000163] =============================================
>>
>> [82196.004502] INFO: task evolution-calen:1768 blocked for more than 180 seconds.
>> [82196.010457]       Tainted: G        W       4.9.0-rc6+ #9
>> [82196.014591] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
>> [82196.021147] evolution-calen D    0  1768      1 0x00000000
>> [82196.025724]  ffff8801ed8b1e00 000000000000f900 ffff880214de0000 ffff8801ef582640
>> [82196.031902]  ffff88021e2998d8 ffffc90003c5bc80 ffffffff819322eb 0000000000000006
>> [82196.038078]  ffff8801ef582e68 0000000003c5bc78 ffff88021e2998d8 0000000000000000
>> [82196.044255] Call Trace:
>> [82196.045430]  [<ffffffff819322eb>] ? __schedule+0x2fb/0xb30
>> [82196.049645]  [<ffffffff81932b58>] schedule+0x38/0x90
>> [82196.053337]  [<ffffffff81932f20>] schedule_preempt_disabled+0x10/0x20
>> [82196.058860]  [<ffffffff81934b15>] mutex_lock_nested+0x175/0x3f0
>> [82196.063507]  [<ffffffff81842df6>] ? rtnetlink_rcv+0x16/0x30
>> [82196.067811]  [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>> [82196.071936]  [<ffffffff8186c76d>] netlink_unicast+0x1cd/0x2e0
>> [82196.076409]  [<ffffffff8186c6e9>] ? netlink_unicast+0x149/0x2e0
>> [82196.081054]  [<ffffffff8186cb62>] netlink_sendmsg+0x2e2/0x390
>> [82196.085526]  [<ffffffff812dcb98>] ? __fget+0x108/0x1f0
>> [82196.089746]  [<ffffffff8180ca73>] sock_sendmsg+0x33/0x40
>> [82196.093785]  [<ffffffff8180d041>] SYSC_sendto+0x101/0x190
>> [82196.097909]  [<ffffffff813ea076>] ? security_file_permission+0x96/0xb0
>> [82196.103166]  [<ffffffff812ba7e9>] ? rw_verify_area+0x49/0xb0
>> [82196.107553]  [<ffffffff811771d9>] ? trace_hardirqs_on_caller+0x129/0x1b0
>> [82196.112985]  [<ffffffff8100301a>] ? trace_hardirqs_on_thunk+0x1a/0x1c
>> [82196.118162]  [<ffffffff8180dee9>] SyS_sendto+0x9/0x10
>> [82196.122314]  [<ffffffff81939f45>] entry_SYSCALL_64_fastpath+0x23/0xc6
>> [82196.127481]
>> Showing all locks held in the system:
>> [82196.131118] 2 locks held by khungtaskd/37:
>> [82196.133939]  #0:
>> [82196.134391]  (
>> [82196.134785] rcu_read_lock
>> [82196.135930] ){......}
>> [82196.136935] , at:
>> [82196.137478] [<ffffffff811ebd5c>] watchdog+0x9c/0x600
>> [82196.141176]  #1:
>> [82196.141628]  (
>> [82196.142022] tasklist_lock
>> [82196.143166] ){.+.+..}
>> [82196.144172] , at:
>> [82196.144710] [<ffffffff8117576d>] debug_show_all_locks+0x3d/0x1a0
>> [82196.149456] 2 locks held by agetty/1149:
>> [82196.152104]  #0:
>> [82196.152555]  (
>> [82196.152951] &tty->ldisc_sem
>> [82196.154268] ){++++.+}
>> [82196.155273] , at:
>> [82196.155807] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
>> [82196.160025]  #1:
>> [82196.160477]  (
>> [82196.160871] &ldata->atomic_read_lock
>> [82196.162970] ){+.+...}
>> [82196.163975] , at:
>> [82196.164513] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
>> [82196.168388] 1 lock held by mission-control/1506:
>> [82196.171732]  #0:
>> [82196.172177]  (
>> [82196.172575] rtnl_mutex
>> [82196.173459] ){+.+.+.}
>> [82196.174463] , at:
>> [82196.174999] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>> [82196.179044] 2 locks held by bash/1691:
>> [82196.181517]  #0:
>> [82196.181964]  (
>> [82196.182361] &tty->ldisc_sem
>> [82196.183677] ){++++.+}
>> [82196.184681] , at:
>> [82196.185217] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
>> [82196.189434]  #1:
>> [82196.189881]  (
>> [82196.190306] &ldata->atomic_read_lock
>> [82196.192407] ){+.+...}
>> [82196.193409] , at:
>> [82196.193942] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
>> [82196.197820] 1 lock held by evolution-calen/1768:
>> [82196.201163]  #0:
>> [82196.201612]  (
>> [82196.202008] rtnl_mutex
>> [82196.202889] ){+.+.+.}
>> [82196.203890] , at:
>> [82196.204428] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>> [82196.208476] 2 locks held by hostapd/4100:
>> [82196.211211]  #0:
>> [82196.211661]  (
>> [82196.212054] cb_lock
>> [82196.212678] ){++++++}
>> [82196.213681] , at:
>> [82196.214214] [<ffffffff8186d494>] genl_rcv+0x14/0x40
>> [82196.217824]  #1:
>> [82196.218276]  (
>> [82196.218667] genl_mutex
>> [82196.219551] ){+.+.+.}
>> [82196.220578] , at:
>> [82196.221112] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82196.225075] 2 locks held by hostapd/4392:
>> [82196.227814]  #0:
>> [82196.228270]  (
>> [82196.228664] cb_lock
>> [82196.229289] ){++++++}
>> [82196.230297] , at:
>> [82196.230833] [<ffffffff8186d494>] genl_rcv+0x14/0x40
>> [82196.234443]  #1:
>> [82196.234891]  (
>> [82196.235291] genl_mutex
>> [82196.236171] ){+.+.+.}
>> [82196.237176] , at:
>> [82196.237711] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82196.241666] 3 locks held by wpa_supplicant/4574:
>> [82196.245011]  #0:
>> [82196.245463]  (
>> [82196.245854] cb_lock
>> [82196.246479] ){++++++}
>> [82196.247483] , at:
>> [82196.248016] [<ffffffff8186d494>] genl_rcv+0x14/0x40
>> [82196.251627]  #1:
>> [82196.252072]  (
>> [82196.252471] genl_mutex
>> [82196.253360] ){+.+.+.}
>> [82196.254365] , at:
>> [82196.254899] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82196.258856]  #2:
>> [82196.259308]  (
>> [82196.259704] rtnl_mutex
>> [82196.260588] ){+.+.+.}
>> [82196.261592] , at:
>> [82196.262125] [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82196.265826] 2 locks held by hostapd/4733:
>> [82196.268561]  #0:
>> [82196.269006]  (
>> [82196.269405] cb_lock
>> [82196.270024] ){++++++}
>> [82196.271032] , at:
>> [82196.271572] [<ffffffff8186d494>] genl_rcv+0x14/0x40
>> [82196.275181]  #1:
>> [82196.275630]  (
>> [82196.276021] genl_mutex
>> [82196.276905] ){+.+.+.}
>> [82196.277908] , at:
>> [82196.278445] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82196.282403] 2 locks held by bash/5322:
>> [82196.284879]  #0:
>> [82196.285328]  (
>> [82196.285719] &tty->ldisc_sem
>> [82196.287038] ){++++.+}
>> [82196.288042] , at:
>> [82196.288580] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
>> [82196.292798]  #1:
>> [82196.293245]  (
>> [82196.293641] &ldata->atomic_read_lock
>> [82196.295741] ){+.+...}
>> [82196.296743] , at:
>> [82196.297283] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
>> [82196.301151] 2 locks held by bash/24789:
>> [82196.303712]  #0:
>> [82196.304156]  (
>> [82196.304552] &tty->ldisc_sem
>> [82196.305869] ){++++.+}
>> [82196.306875] , at:
>> [82196.307413] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
>> [82196.311631]  #1:
>> [82196.312078]  (
>> [82196.313123] &ldata->atomic_read_lock
>> [82196.315221] ){+.+...}
>> [82196.316227] , at:
>> [82196.316765] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
>> [82196.320638] 5 locks held by kworker/u8:1/1965:
>> [82196.323806]  #0:
>> [82196.324250]  (
>> [82196.324651] "%s"wiphy_name(local->hw.wiphy)
>> [82196.327365] ){++++.+}
>> [82196.328367] , at:
>> [82196.328902] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82196.333378]  #1:
>> [82196.333822]  (
>> [82196.334219] (&sdata->work)
>> [82196.335449] ){+.+.+.}
>> [82196.336453] , at:
>> [82196.336986] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82196.341464]  #2:
>> [82196.341913]  (
>> [82196.342312] &wdev->mtx
>> [82196.343191] ){+.+.+.}
>> [82196.344196] , at:
>> [82196.344784] [<ffffffffa0e65557>] ieee80211_sta_work+0x47/0x1b50 [mac80211]
>> [82196.350397]  #3:
>> [82196.350844]  (
>> [82196.351238] &local->sta_mtx
>> [82196.352558] ){+.+.+.}
>> [82196.353560] , at:
>> [82196.354107] [<ffffffffa0dffae6>] __sta_info_flush+0x86/0x190 [mac80211]
>> [82196.359455]  #4:
>> [82196.359900]  (
>> [82196.360300] &ar->conf_mutex
>> [82196.361617] ){+.+.+.}
>> [82196.362621] , at:
>> [82196.363162] [<ffffffffa12a3165>] ath10k_sta_state+0x205/0xbd0 [ath10k_core]
>> [82196.368860] 3 locks held by kworker/u8:3/2064:
>> [82196.372030]  #0:
>> [82196.372479]  (
>> [82196.372873] "%s""ath10k_wq"
>> [82196.374192] ){.+.+.+}
>> [82196.375196] , at:
>> [82196.375734] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82196.380221]  #1:
>> [82196.380674]  (
>> [82196.381068] (&(&ar->debug.nop_dwork)->work)
>> [82196.383774] ){+.+...}
>> [82196.384778] , at:
>> [82196.385316] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82196.389793]  #2:
>> [82196.390240]  (
>> [82196.390635] &ar->conf_mutex
>> [82196.391954] ){+.+.+.}
>> [82196.392959] , at:
>> [82196.393510] [<ffffffffa12acbb4>] ath10k_debug_nop_dwork+0x24/0x80 [ath10k_core]
>> [82196.399551] 4 locks held by kworker/0:2/2149:
>> [82196.402635]  #0:
>> [82196.403080]  (
>> [82196.403480] "events_freezable"
>> [82196.405057] ){.+.+..}
>> [82196.406062] , at:
>> [82196.406601] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82196.411079]  #1:
>> [82196.411531]  (
>> [82196.411925] (&local->restart_work)
>> [82196.413853] ){+.+...}
>> [82196.414858] , at:
>> [82196.415397] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82196.419874]  #2:
>> [82196.420327]  (
>> [82196.420720] rtnl_mutex
>> [82196.421606] ){+.+.+.}
>> [82196.422611] , at:
>> [82196.423145] [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82196.426841]  #3:
>> [82196.427290]  (
>> [82196.427686] &ar->conf_mutex
>> [82196.429008] ){+.+.+.}
>> [82196.430012] , at:
>> [82196.430555] [<ffffffffa12a8686>] ath10k_start+0x26/0x5d0 [ath10k_core]
>> [82196.435814] 3 locks held by kworker/3:3/2153:
>> [82196.438895]  #0:
>> [82196.439345]  (
>> [82196.439741] "events"
>> [82196.440449] ){.+.+.+}
>> [82196.441455] , at:
>> [82196.441989] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82196.446468]  #1:
>> [82196.446916]  (
>> [82196.447315] (linkwatch_work).work
>> [82196.449154] ){+.+.+.}
>> [82196.450156] , at:
>> [82196.450694] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82196.455171]  #2:
>> [82196.455626]  (
>> [82196.456020] rtnl_mutex
>> [82196.456903] ){+.+.+.}
>> [82196.457908] , at:
>> [82196.458446] [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82196.462143] 3 locks held by kworker/2:2/2984:
>> [82196.465225]  #0:
>> [82196.465676]  (
>> [82196.466069] "%s"("ipv6_addrconf")
>> [82196.467909] ){.+.+..}
>> [82196.468916] , at:
>> [82196.469454] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82196.473931]  #1:
>> [82196.474385]  (
>> [82196.474778] (addr_chk_work).work
>> [82196.476529] ){+.+...}
>> [82196.477534] , at:
>> [82196.478067] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82196.482547]  #2:
>> [82196.482994]  (
>> [82196.483392] rtnl_mutex
>> [82196.484272] ){+.+.+.}
>> [82196.485279] , at:
>> [82196.485820] [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82196.489517] 1 lock held by ip/3840:
>> [82196.491731]  #0:
>> [82196.492175]  (
>> [82196.492574] rtnl_mutex
>> [82196.493458] ){+.+.+.}
>> [82196.494463] , at:
>> [82196.494996] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>> [82196.499043] 1 lock held by ip/3843:
>> [82196.501257]  #0:
>> [82196.501708]  (
>> [82196.502105] rtnl_mutex
>> [82196.502987] ){+.+.+.}
>> [82196.503991] , at:
>> [82196.504530] [<ffffffff8186959e>] netlink_dump+0x1e/0x290
>> [82196.508573] 1 lock held by ip/3845:
>> [82196.510794]  #0:
>> [82196.511242]  (
>> [82196.511641] rtnl_mutex
>> [82196.512525] ){+.+.+.}
>> [82196.513530] , at:
>> [82196.514064] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>>
>> [82196.518327] =============================================
>>
>> [82196.522664] INFO: task hostapd:4100 blocked for more than 180 seconds.
>> [82196.527934]       Tainted: G        W       4.9.0-rc6+ #9
>> [82196.532058] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
>> [82196.538618] hostapd         D    0  4100      1 0x00000000
>> [82196.542867]  ffff8802114d6900 0000000000004d8e ffffffff81e11580 ffff880211e04c80
>> [82196.549068]  ffff88021e2198d8 ffffc900099ffb40 ffffffff819322eb 0000000000000006
>> [82196.555252]  ffff880211e054a8 00000000099ffb38 ffff88021e2198d8 0000000000000000
>> [82196.561441] Call Trace:
>> [82196.562618]  [<ffffffff819322eb>] ? __schedule+0x2fb/0xb30
>> [82196.566831]  [<ffffffff81932b58>] schedule+0x38/0x90
>> [82196.570522]  [<ffffffff81932f20>] schedule_preempt_disabled+0x10/0x20
>> [82196.575710]  [<ffffffff81934b15>] mutex_lock_nested+0x175/0x3f0
>> [82196.580356]  [<ffffffff8186d8d4>] ? genl_rcv_msg+0xa4/0xb0
>> [82196.584574]  [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82196.588613]  [<ffffffff8186d830>] ? genl_family_rcv_msg+0x370/0x370
>> [82196.593636]  [<ffffffff8186cddf>] netlink_rcv_skb+0x9f/0xc0
>> [82196.597937]  [<ffffffff8186d4a3>] genl_rcv+0x23/0x40
>> [82196.601629]  [<ffffffff8186c76d>] netlink_unicast+0x1cd/0x2e0
>> [82196.606099]  [<ffffffff8186c6e9>] ? netlink_unicast+0x149/0x2e0
>> [82196.610746]  [<ffffffff8186cb62>] netlink_sendmsg+0x2e2/0x390
>> [82196.615237]  [<ffffffff8180ca73>] sock_sendmsg+0x33/0x40
>> [82196.619298]  [<ffffffff8180d55b>] ___sys_sendmsg+0x2db/0x2f0
>> [82196.623685]  [<ffffffff81172eba>] ? up_write+0x1a/0x40
>> [82196.627556]  [<ffffffff81357048>] ? ext4_file_write_iter+0x88/0x340
>> [82196.632565]  [<ffffffff81195c0d>] ? debug_lockdep_rcu_enabled+0x1d/0x20
>> [82196.637908]  [<ffffffff8180e170>] __sys_sendmsg+0x40/0x70
>> [82196.642034]  [<ffffffff8180e1ad>] SyS_sendmsg+0xd/0x20
>> [82196.645900]  [<ffffffff81939f45>] entry_SYSCALL_64_fastpath+0x23/0xc6
>> [82196.651066]
>> Showing all locks held in the system:
>> [82196.654718] 2 locks held by khungtaskd/37:
>> [82196.657540]  #0:
>> [82196.657985]  (
>> [82196.658385] rcu_read_lock
>> [82196.659530] ){......}
>> [82196.660534] , at:
>> [82196.661069] [<ffffffff811ebd5c>] watchdog+0x9c/0x600
>> [82196.664770]  #1:
>> [82196.665219]  (
>> [82196.665617] tasklist_lock
>> [82196.666760] ){.+.+..}
>> [82196.667766] , at:
>> [82196.668306] [<ffffffff8117576d>] debug_show_all_locks+0x3d/0x1a0
>> [82196.673057] 2 locks held by agetty/1149:
>> [82196.675706]  #0:
>> [82196.676168]  (
>> [82196.676586] &tty->ldisc_sem
>> [82196.677905] ){++++.+}
>> [82196.678911] , at:
>> [82196.679450] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
>> [82196.683669]  #1:
>> [82196.684114]  (
>> [82196.684511] &ldata->atomic_read_lock
>> [82196.686613] ){+.+...}
>> [82196.687616] , at:
>> [82196.688150] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
>> [82196.692028] 1 lock held by mission-control/1506:
>> [82196.695369]  #0:
>> [82196.695814]  (
>> [82196.696211] rtnl_mutex
>> [82196.697092] ){+.+.+.}
>> [82196.698093] , at:
>> [82196.698633] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>> [82196.702680] 2 locks held by bash/1691:
>> [82196.705156]  #0:
>> [82196.705607]  (
>> [82196.706003] &tty->ldisc_sem
>> [82196.707326] ){++++.+}
>> [82196.708330] , at:
>> [82196.708864] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
>> [82196.713106]  #1:
>> [82196.713576]  (
>> [82196.713970] &ldata->atomic_read_lock
>> [82196.716070] ){+.+...}
>> [82196.717074] , at:
>> [82196.717612] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
>> [82196.721500] 1 lock held by evolution-calen/1768:
>> [82196.724845]  #0:
>> [82196.725293]  (
>> [82196.725692] rtnl_mutex
>> [82196.726576] ){+.+.+.}
>> [82196.727580] , at:
>> [82196.728117] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>> [82196.732162] 2 locks held by hostapd/4100:
>> [82196.734897]  #0:
>> [82196.735347]  (
>> [82196.735742] cb_lock
>> [82196.736364] ){++++++}
>> [82196.737364] , at:
>> [82196.737900] [<ffffffff8186d494>] genl_rcv+0x14/0x40
>> [82196.741517]  #1:
>> [82196.741964]  (
>> [82196.742363] genl_mutex
>> [82196.743243] ){+.+.+.}
>> [82196.744248] , at:
>> [82196.744785] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82196.748743] 2 locks held by hostapd/4392:
>> [82196.751478]  #0:
>> [82196.751925]  (
>> [82196.752330] cb_lock
>> [82196.752947] ){++++++}
>> [82196.753960] , at:
>> [82196.754499] [<ffffffff8186d494>] genl_rcv+0x14/0x40
>> [82196.758107]  #1:
>> [82196.758559]  (
>> [82196.758950] genl_mutex
>> [82196.759833] ){+.+.+.}
>> [82196.760839] , at:
>> [82196.761376] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82196.765335] 3 locks held by wpa_supplicant/4574:
>> [82196.768678]  #0:
>> [82196.769123]  (
>> [82196.769518] cb_lock
>> [82196.770137] ){++++++}
>> [82196.771139] , at:
>> [82196.771676] [<ffffffff8186d494>] genl_rcv+0x14/0x40
>> [82196.775285]  #1:
>> [82196.775736]  (
>> [82196.776133] genl_mutex
>> [82196.777026] ){+.+.+.}
>> [82196.778027] , at:
>> [82196.778573] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82196.782527]  #2:
>> [82196.782972]  (
>> [82196.783367] rtnl_mutex
>> [82196.784247] ){+.+.+.}
>> [82196.785254] , at:
>> [82196.785793] [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82196.789491] 2 locks held by hostapd/4733:
>> [82196.792224]  #0:
>> [82196.792673]  (
>> [82196.793067] cb_lock
>> [82196.793687] ){++++++}
>> [82196.794688] , at:
>> [82196.795224] [<ffffffff8186d494>] genl_rcv+0x14/0x40
>> [82196.798834]  #1:
>> [82196.799278]  (
>> [82196.799679] genl_mutex
>> [82196.800560] ){+.+.+.}
>> [82196.801560] , at:
>> [82196.802096] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82196.806053] 2 locks held by bash/5322:
>> [82196.808524]  #0:
>> [82196.808971]  (
>> [82196.809365] &tty->ldisc_sem
>> [82196.810684] ){++++.+}
>> [82196.811687] , at:
>> [82196.812224] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
>> [82196.816440]  #1:
>> [82196.816888]  (
>> [82196.817278] &ldata->atomic_read_lock
>> [82196.819377] ){+.+...}
>> [82196.820380] , at:
>> [82196.820917] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
>> [82196.824787] 2 locks held by bash/24789:
>> [82196.827352]  #0:
>> [82196.827800]  (
>> [82196.828196] &tty->ldisc_sem
>> [82196.829512] ){++++.+}
>> [82196.830516] , at:
>> [82196.831050] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
>> [82196.835268]  #1:
>> [82196.835719]  (
>> [82196.836112] &ldata->atomic_read_lock
>> [82196.838209] ){+.+...}
>> [82196.839214] , at:
>> [82196.839751] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
>> [82196.844271] 5 locks held by kworker/u8:1/1965:
>> [82196.847439]  #0:
>> [82196.847884]  (
>> [82196.848280] "%s"wiphy_name(local->hw.wiphy)
>> [82196.850986] ){++++.+}
>> [82196.851987] , at:
>> [82196.852525] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82196.857004]  #1:
>> [82196.857456]  (
>> [82196.857852] (&sdata->work)
>> [82196.859082] ){+.+.+.}
>> [82196.860086] , at:
>> [82196.860624] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82196.865102]  #2:
>> [82196.865554]  (
>> [82196.865945] &wdev->mtx
>> [82196.866829] ){+.+.+.}
>> [82196.867833] , at:
>> [82196.868406] [<ffffffffa0e65557>] ieee80211_sta_work+0x47/0x1b50 [mac80211]
>> [82196.874011]  #3:
>> [82196.874463]  (
>> [82196.874854] &local->sta_mtx
>> [82196.876172] ){+.+.+.}
>> [82196.877176] , at:
>> [82196.877728] [<ffffffffa0dffae6>] __sta_info_flush+0x86/0x190 [mac80211]
>> [82196.883073]  #4:
>> [82196.883524]  (
>> [82196.883915] &ar->conf_mutex
>> [82196.885234] ){+.+.+.}
>> [82196.886237] , at:
>> [82196.886785] [<ffffffffa12a3165>] ath10k_sta_state+0x205/0xbd0 [ath10k_core]
>> [82196.892478] 3 locks held by kworker/u8:3/2064:
>> [82196.895645]  #0:
>> [82196.896092]  (
>> [82196.896490] "%s""ath10k_wq"
>> [82196.897807] ){.+.+.+}
>> [82196.898811] , at:
>> [82196.899351] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82196.903827]  #1:
>> [82196.904272]  (
>> [82196.904667] (&(&ar->debug.nop_dwork)->work)
>> [82196.907377] ){+.+...}
>> [82196.908379] , at:
>> [82196.908916] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82196.913391]  #2:
>> [82196.913835]  (
>> [82196.914231] &ar->conf_mutex
>> [82196.915548] ){+.+.+.}
>> [82196.916552] , at:
>> [82196.917093] [<ffffffffa12acbb4>] ath10k_debug_nop_dwork+0x24/0x80 [ath10k_core]
>> [82196.923133] 4 locks held by kworker/0:2/2149:
>> [82196.926216]  #0:
>> [82196.926666]  (
>> [82196.927057] "events_freezable"
>> [82196.928635] ){.+.+..}
>> [82196.929639] , at:
>> [82196.930172] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82196.934651]  #1:
>> [82196.935098]  (
>> [82196.935498] (&local->restart_work)
>> [82196.937423] ){+.+...}
>> [82196.938427] , at:
>> [82196.938960] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82196.943457]  #2:
>> [82196.943904]  (
>> [82196.944297] rtnl_mutex
>> [82196.945182] ){+.+.+.}
>> [82196.946188] , at:
>> [82196.946726] [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82196.950419]  #3:
>> [82196.950866]  (
>> [82196.951257] &ar->conf_mutex
>> [82196.952575] ){+.+.+.}
>> [82196.953580] , at:
>> [82196.954118] [<ffffffffa12a8686>] ath10k_start+0x26/0x5d0 [ath10k_core]
>> [82196.959380] 3 locks held by kworker/3:3/2153:
>> [82196.962463]  #0:
>> [82196.962908]  (
>> [82196.963299] "events"
>> [82196.964010] ){.+.+.+}
>> [82196.965014] , at:
>> [82196.965554] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82196.970029]  #1:
>> [82196.970478]  (
>> [82196.970872] (linkwatch_work).work
>> [82196.972713] ){+.+.+.}
>> [82196.973716] , at:
>> [82196.974250] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82196.978727]  #2:
>> [82196.979172]  (
>> [82196.979569] rtnl_mutex
>> [82196.980456] ){+.+.+.}
>> [82196.981459] , at:
>> [82196.981993] [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82196.985692] 3 locks held by kworker/2:2/2984:
>> [82196.988776]  #0:
>> [82196.989221]  (
>> [82196.989618] "%s"("ipv6_addrconf")
>> [82196.991457] ){.+.+..}
>> [82196.992460] , at:
>> [82196.992996] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82196.997474]  #1:
>> [82196.997921]  (
>> [82196.998318] (addr_chk_work).work
>> [82197.000069] ){+.+...}
>> [82197.001073] , at:
>> [82197.001610] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82197.006086]  #2:
>> [82197.006535]  (
>> [82197.006926] rtnl_mutex
>> [82197.007811] ){+.+.+.}
>> [82197.008814] , at:
>> [82197.009355] [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82197.013051] 1 lock held by ip/3840:
>> [82197.015265]  #0:
>> [82197.015716]  (
>> [82197.016110] rtnl_mutex
>> [82197.016997] ){+.+.+.}
>> [82197.018000] , at:
>> [82197.018540] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>> [82197.022583] 1 lock held by ip/3843:
>> [82197.024794]  #0:
>> [82197.025241]  (
>> [82197.025636] rtnl_mutex
>> [82197.026519] ){+.+.+.}
>> [82197.027521] , at:
>> [82197.028057] [<ffffffff8186959e>] netlink_dump+0x1e/0x290
>> [82197.032098] 1 lock held by ip/3845:
>> [82197.034322]  #0:
>> [82197.034772]  (
>> [82197.035165] rtnl_mutex
>> [82197.036049] ){+.+.+.}
>> [82197.037050] , at:
>> [82197.037587] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>>
>> [82197.041839] =============================================
>>
>> [82197.046175] INFO: task hostapd:4392 blocked for more than 180 seconds.
>> [82197.051436]       Tainted: G        W       4.9.0-rc6+ #9
>> [82197.055562] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
>> [82197.062118] hostapd         D    0  4392      1 0x00000000
>> [82197.066349]  ffff8802114d2800 0000000000000249 ffff880214de0000 ffff8801ed8f8000
>> [82197.072535]  ffff88021e2998d8 ffffc90009e6bb40 ffffffff819322eb 0000000000000006
>> [82197.078711]  ffff8801ed8f8828 0000000009e6bb38 ffff88021e2998d8 0000000000000000
>> [82197.084886] Call Trace:
>> [82197.086083]  [<ffffffff819322eb>] ? __schedule+0x2fb/0xb30
>> [82197.090669]  [<ffffffff81932b58>] schedule+0x38/0x90
>> [82197.094362]  [<ffffffff81932f20>] schedule_preempt_disabled+0x10/0x20
>> [82197.099528]  [<ffffffff81934b15>] mutex_lock_nested+0x175/0x3f0
>> [82197.104173]  [<ffffffff8186d8d4>] ? genl_rcv_msg+0xa4/0xb0
>> [82197.108390]  [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82197.112429]  [<ffffffff8186d830>] ? genl_family_rcv_msg+0x370/0x370
>> [82197.117424]  [<ffffffff8186cddf>] netlink_rcv_skb+0x9f/0xc0
>> [82197.121722]  [<ffffffff8186d4a3>] genl_rcv+0x23/0x40
>> [82197.125412]  [<ffffffff8186c76d>] netlink_unicast+0x1cd/0x2e0
>> [82197.129887]  [<ffffffff8186c6e9>] ? netlink_unicast+0x149/0x2e0
>> [82197.134535]  [<ffffffff8186cb62>] netlink_sendmsg+0x2e2/0x390
>> [82197.139378]  [<ffffffff8180ca73>] sock_sendmsg+0x33/0x40
>> [82197.143418]  [<ffffffff8180d55b>] ___sys_sendmsg+0x2db/0x2f0
>> [82197.147805]  [<ffffffff81172eba>] ? up_write+0x1a/0x40
>> [82197.151679]  [<ffffffff81357048>] ? ext4_file_write_iter+0x88/0x340
>> [82197.156677]  [<ffffffff81195c0d>] ? debug_lockdep_rcu_enabled+0x1d/0x20
>> [82197.162018]  [<ffffffff8180e170>] __sys_sendmsg+0x40/0x70
>> [82197.166147]  [<ffffffff8180e1ad>] SyS_sendmsg+0xd/0x20
>> [82197.170011]  [<ffffffff81939f45>] entry_SYSCALL_64_fastpath+0x23/0xc6
>> [82197.175176]
>> Showing all locks held in the system:
>> [82197.178808] 2 locks held by khungtaskd/37:
>> [82197.181630]  #0:
>> [82197.182078]  (
>> [82197.182473] rcu_read_lock
>> [82197.183618] ){......}
>> [82197.184622] , at:
>> [82197.185159] [<ffffffff811ebd5c>] watchdog+0x9c/0x600
>> [82197.188863]  #1:
>> [82197.189311]  (
>> [82197.189711] tasklist_lock
>> [82197.190855] ){.+.+..}
>> [82197.191859] , at:
>> [82197.192397] [<ffffffff8117576d>] debug_show_all_locks+0x3d/0x1a0
>> [82197.197144] 2 locks held by agetty/1149:
>> [82197.199793]  #0:
>> [82197.200240]  (
>> [82197.200638] &tty->ldisc_sem
>> [82197.201957] ){++++.+}
>> [82197.202961] , at:
>> [82197.203499] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
>> [82197.207717]  #1:
>> [82197.208164]  (
>> [82197.208560] &ldata->atomic_read_lock
>> [82197.210659] ){+.+...}
>> [82197.211661] , at:
>> [82197.212195] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
>> [82197.216074] 1 lock held by mission-control/1506:
>> [82197.219419]  #0:
>> [82197.219863]  (
>> [82197.220254] rtnl_mutex
>> [82197.221139] ){+.+.+.}
>> [82197.222143] , at:
>> [82197.222683] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>> [82197.226726] 2 locks held by bash/1691:
>> [82197.229202]  #0:
>> [82197.229651]  (
>> [82197.230043] &tty->ldisc_sem
>> [82197.231363] ){++++.+}
>> [82197.232368] , at:
>> [82197.232905] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
>> [82197.237130]  #1:
>> [82197.237579]  (
>> [82197.237974] &ldata->atomic_read_lock
>> [82197.240073] ){+.+...}
>> [82197.241077] , at:
>> [82197.241615] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
>> [82197.245485] 1 lock held by evolution-calen/1768:
>> [82197.248828]  #0:
>> [82197.249273]  (
>> [82197.249668] rtnl_mutex
>> [82197.250552] ){+.+.+.}
>> [82197.251557] , at:
>> [82197.252090] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>> [82197.256139] 2 locks held by hostapd/4100:
>> [82197.258872]  #0:
>> [82197.259317]  (
>> [82197.259713] cb_lock
>> [82197.260333] ){++++++}
>> [82197.261338] , at:
>> [82197.261875] [<ffffffff8186d494>] genl_rcv+0x14/0x40
>> [82197.265486]  #1:
>> [82197.265934]  (
>> [82197.266334] genl_mutex
>> [82197.267221] ){+.+.+.}
>> [82197.268228] , at:
>> [82197.268766] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82197.272723] 2 locks held by hostapd/4392:
>> [82197.275459]  #0:
>> [82197.275907]  (
>> [82197.276308] cb_lock
>> [82197.276933] ){++++++}
>> [82197.277937] , at:
>> [82197.278477] [<ffffffff8186d494>] genl_rcv+0x14/0x40
>> [82197.282085]  #1:
>> [82197.282535]  (
>> [82197.282926] genl_mutex
>> [82197.283809] ){+.+.+.}
>> [82197.284816] , at:
>> [82197.285349] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82197.289315] 3 locks held by wpa_supplicant/4574:
>> [82197.292662]  #0:
>> [82197.293109]  (
>> [82197.293507] cb_lock
>> [82197.294127] ){++++++}
>> [82197.295134] , at:
>> [82197.295675] [<ffffffff8186d494>] genl_rcv+0x14/0x40
>> [82197.299283]  #1:
>> [82197.299733]  (
>> [82197.300124] genl_mutex
>> [82197.301014] ){+.+.+.}
>> [82197.302019] , at:
>> [82197.302557] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82197.306511]  #2:
>> [82197.306958]  (
>> [82197.307359] rtnl_mutex
>> [82197.308240] ){+.+.+.}
>> [82197.309248] , at:
>> [82197.309788] [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82197.313486] 2 locks held by hostapd/4733:
>> [82197.316221]  #0:
>> [82197.316672]  (
>> [82197.317068] cb_lock
>> [82197.317690] ){++++++}
>> [82197.318692] , at:
>> [82197.319225] [<ffffffff8186d494>] genl_rcv+0x14/0x40
>> [82197.322835]  #1:
>> [82197.323280]  (
>> [82197.323676] genl_mutex
>> [82197.324559] ){+.+.+.}
>> [82197.325566] , at:
>> [82197.326099] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82197.330059] 2 locks held by bash/5322:
>> [82197.332533]  #0:
>> [82197.332978]  (
>> [82197.333379] &tty->ldisc_sem
>> [82197.334698] ){++++.+}
>> [82197.335699] , at:
>> [82197.336235] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
>> [82197.340455]  #1:
>> [82197.340903]  (
>> [82197.341294] &ldata->atomic_read_lock
>> [82197.343393] ){+.+...}
>> [82197.344398] , at:
>> [82197.344932] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
>> [82197.348804] 2 locks held by bash/24789:
>> [82197.351369]  #0:
>> [82197.351815]  (
>> [82197.352211] &tty->ldisc_sem
>> [82197.353529] ){++++.+}
>> [82197.354531] , at:
>> [82197.355065] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
>> [82197.359283]  #1:
>> [82197.359737]  (
>> [82197.360130] &ldata->atomic_read_lock
>> [82197.362230] ){+.+...}
>> [82197.363234] , at:
>> [82197.363772] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
>> [82197.367651] 5 locks held by kworker/u8:1/1965:
>> [82197.370825]  #0:
>> [82197.371272]  (
>> [82197.372317] "%s"wiphy_name(local->hw.wiphy)
>> [82197.375026] ){++++.+}
>> [82197.376030] , at:
>> [82197.376567] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82197.381045]  #1:
>> [82197.381497]  (
>> [82197.381888] (&sdata->work)
>> [82197.383119] ){+.+.+.}
>> [82197.384124] , at:
>> [82197.384662] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82197.389139]  #2:
>> [82197.389588]  (
>> [82197.389982] &wdev->mtx
>> [82197.390866] ){+.+.+.}
>> [82197.391872] , at:
>> [82197.392435] [<ffffffffa0e65557>] ieee80211_sta_work+0x47/0x1b50 [mac80211]
>> [82197.398042]  #3:
>> [82197.398492]  (
>> [82197.398887] &local->sta_mtx
>> [82197.400205] ){+.+.+.}
>> [82197.401209] , at:
>> [82197.401760] [<ffffffffa0dffae6>] __sta_info_flush+0x86/0x190 [mac80211]
>> [82197.407107]  #4:
>> [82197.407557]  (
>> [82197.407953] &ar->conf_mutex
>> [82197.409270] ){+.+.+.}
>> [82197.410274] , at:
>> [82197.410818] [<ffffffffa12a3165>] ath10k_sta_state+0x205/0xbd0 [ath10k_core]
>> [82197.416513] 3 locks held by kworker/u8:3/2064:
>> [82197.419684]  #0:
>> [82197.420132]  (
>> [82197.420533] "%s""ath10k_wq"
>> [82197.421854] ){.+.+.+}
>> [82197.422859] , at:
>> [82197.423397] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82197.427874]  #1:
>> [82197.428321]  (
>> [82197.428717] (&(&ar->debug.nop_dwork)->work)
>> [82197.431423] ){+.+...}
>> [82197.432425] , at:
>> [82197.432961] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82197.437439]  #2:
>> [82197.437884]  (
>> [82197.438275] &ar->conf_mutex
>> [82197.439595] ){+.+.+.}
>> [82197.440598] , at:
>> [82197.441137] [<ffffffffa12acbb4>] ath10k_debug_nop_dwork+0x24/0x80 [ath10k_core]
>> [82197.447178] 4 locks held by kworker/0:2/2149:
>> [82197.450265]  #0:
>> [82197.450717]  (
>> [82197.451111] "events_freezable"
>> [82197.452690] ){.+.+..}
>> [82197.453694] , at:
>> [82197.454228] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82197.458707]  #1:
>> [82197.459152]  (
>> [82197.459548] (&local->restart_work)
>> [82197.461474] ){+.+...}
>> [82197.462478] , at:
>> [82197.463012] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82197.467488]  #2:
>> [82197.467936]  (
>> [82197.468330] rtnl_mutex
>> [82197.469215] ){+.+.+.}
>> [82197.470220] , at:
>> [82197.470758] [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82197.474454]  #3:
>> [82197.474899]  (
>> [82197.475290] &ar->conf_mutex
>> [82197.476607] ){+.+.+.}
>> [82197.477612] , at:
>> [82197.478152] [<ffffffffa12a8686>] ath10k_start+0x26/0x5d0 [ath10k_core]
>> [82197.483413] 3 locks held by kworker/3:3/2153:
>> [82197.486497]  #0:
>> [82197.486945]  (
>> [82197.487336] "events"
>> [82197.488048] ){.+.+.+}
>> [82197.489052] , at:
>> [82197.489590] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82197.494068]  #1:
>> [82197.494521]  (
>> [82197.494917] (linkwatch_work).work
>> [82197.496766] ){+.+.+.}
>> [82197.497771] , at:
>> [82197.498305] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82197.502782]  #2:
>> [82197.503230]  (
>> [82197.503626] rtnl_mutex
>> [82197.504510] ){+.+.+.}
>> [82197.505515] , at:
>> [82197.506048] [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82197.509746] 3 locks held by kworker/2:2/2984:
>> [82197.512830]  #0:
>> [82197.513275]  (
>> [82197.513673] "%s"("ipv6_addrconf")
>> [82197.515513] ){.+.+..}
>> [82197.516517] , at:
>> [82197.517051] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82197.521531]  #1:
>> [82197.521976]  (
>> [82197.522372] (addr_chk_work).work
>> [82197.524128] ){+.+...}
>> [82197.525141] , at:
>> [82197.525683] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82197.530160]  #2:
>> [82197.530612]  (
>> [82197.531005] rtnl_mutex
>> [82197.531889] ){+.+.+.}
>> [82197.532893] , at:
>> [82197.533429] [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82197.537128] 1 lock held by ip/3840:
>> [82197.539344]  #0:
>> [82197.539794]  (
>> [82197.540190] rtnl_mutex
>> [82197.541072] ){+.+.+.}
>> [82197.542078] , at:
>> [82197.542616] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>> [82197.546660] 1 lock held by ip/3843:
>> [82197.548874]  #0:
>> [82197.549322]  (
>> [82197.549718] rtnl_mutex
>> [82197.550602] ){+.+.+.}
>> [82197.551609] , at:
>> [82197.552147] [<ffffffff8186959e>] netlink_dump+0x1e/0x290
>> [82197.556190] 1 lock held by ip/3845:
>> [82197.558411]  #0:
>> [82197.558859]  (
>> [82197.559249] rtnl_mutex
>> [82197.560134] ){+.+.+.}
>> [82197.561140] , at:
>> [82197.561679] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>>
>> [82197.565933] =============================================
>>
>> [82197.570269] INFO: task wpa_supplicant:4574 blocked for more than 180 seconds.
>> [82197.576194]       Tainted: G        W       4.9.0-rc6+ #9
>> [82197.580317] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
>> [82197.586875] wpa_supplicant  D    0  4574      1 0x00000000
>> [82197.591104]  ffff8801ed8b1400 000000000000edfb ffff880214de0000 ffff88020f462640
>> [82197.597301]  ffff88021e2998d8 ffffc9000a397a70 ffffffff819322eb 0000000000000006
>> [82197.603500]  ffff88020f462e68 000000000a397a68 ffff88021e2998d8 0000000000000000
>> [82197.609677] Call Trace:
>> [82197.610851]  [<ffffffff819322eb>] ? __schedule+0x2fb/0xb30
>> [82197.615062]  [<ffffffff81932b58>] schedule+0x38/0x90
>> [82197.618753]  [<ffffffff81932f20>] schedule_preempt_disabled+0x10/0x20
>> [82197.623922]  [<ffffffff81934b15>] mutex_lock_nested+0x175/0x3f0
>> [82197.628568]  [<ffffffff81841882>] ? rtnl_lock+0x12/0x20
>> [82197.632525]  [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82197.636334]  [<ffffffffa06d5f22>] nl80211_pre_doit+0xd2/0x1b0 [cfg80211]
>> [82197.641780]  [<ffffffff8186d63c>] genl_family_rcv_msg+0x17c/0x370
>> [82197.646600]  [<ffffffff8117726d>] ? trace_hardirqs_on+0xd/0x10
>> [82197.651156]  [<ffffffff8186d8a8>] genl_rcv_msg+0x78/0xb0
>> [82197.655194]  [<ffffffff8186d830>] ? genl_family_rcv_msg+0x370/0x370
>> [82197.660189]  [<ffffffff8186cddf>] netlink_rcv_skb+0x9f/0xc0
>> [82197.664486]  [<ffffffff8186d4a3>] genl_rcv+0x23/0x40
>> [82197.668176]  [<ffffffff8186c76d>] netlink_unicast+0x1cd/0x2e0
>> [82197.672662]  [<ffffffff8186c6e9>] ? netlink_unicast+0x149/0x2e0
>> [82197.677311]  [<ffffffff8186cb62>] netlink_sendmsg+0x2e2/0x390
>> [82197.681786]  [<ffffffff8180ca73>] sock_sendmsg+0x33/0x40
>> [82197.685827]  [<ffffffff8180d55b>] ___sys_sendmsg+0x2db/0x2f0
>> [82197.690216]  [<ffffffff81195c0d>] ? debug_lockdep_rcu_enabled+0x1d/0x20
>> [82197.695557]  [<ffffffff812685ae>] ? __might_fault+0x3e/0x90
>> [82197.699876]  [<ffffffff812685ae>] ? __might_fault+0x3e/0x90
>> [82197.704175]  [<ffffffff81904e87>] ? unix_ioctl+0x77/0x80
>> [82197.708215]  [<ffffffff8180a480>] ? sock_do_ioctl+0x20/0x50
>> [82197.712517]  [<ffffffff8180ab38>] ? sock_ioctl+0x208/0x2d0
>> [82197.716728]  [<ffffffff8180e170>] __sys_sendmsg+0x40/0x70
>> [82197.720853]  [<ffffffff8180e1ad>] SyS_sendmsg+0xd/0x20
>> [82197.724720]  [<ffffffff81939f45>] entry_SYSCALL_64_fastpath+0x23/0xc6
>> [82197.729888]
>> Showing all locks held in the system:
>> [82197.733521] 2 locks held by khungtaskd/37:
>> [82197.736345]  #0:
>> [82197.736795]  (
>> [82197.737190] rcu_read_lock
>> [82197.738334] ){......}
>> [82197.739337] , at:
>> [82197.739878] [<ffffffff811ebd5c>] watchdog+0x9c/0x600
>> [82197.743605]  #1:
>> [82197.744052]  (
>> [82197.744453] tasklist_lock
>> [82197.745599] ){.+.+..}
>> [82197.746606] , at:
>> [82197.747140] [<ffffffff8117576d>] debug_show_all_locks+0x3d/0x1a0
>> [82197.751888] 2 locks held by agetty/1149:
>> [82197.754533]  #0:
>> [82197.754981]  (
>> [82197.755372] &tty->ldisc_sem
>> [82197.756689] ){++++.+}
>> [82197.757692] , at:
>> [82197.758228] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
>> [82197.762450]  #1:
>> [82197.762898]  (
>> [82197.763294] &ldata->atomic_read_lock
>> [82197.765398] ){+.+...}
>> [82197.766403] , at:
>> [82197.766938] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
>> [82197.770835] 1 lock held by mission-control/1506:
>> [82197.774179]  #0:
>> [82197.774628]  (
>> [82197.775024] rtnl_mutex
>> [82197.775907] ){+.+.+.}
>> [82197.776914] , at:
>> [82197.777455] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>> [82197.781511] 2 locks held by bash/1691:
>> [82197.783987]  #0:
>> [82197.784438]  (
>> [82197.784832] &tty->ldisc_sem
>> [82197.786151] ){++++.+}
>> [82197.787154] , at:
>> [82197.787692] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
>> [82197.791909]  #1:
>> [82197.792354]  (
>> [82197.792749] &ldata->atomic_read_lock
>> [82197.794849] ){+.+...}
>> [82197.795851] , at:
>> [82197.796387] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
>> [82197.800256] 1 lock held by evolution-calen/1768:
>> [82197.803603]  #0:
>> [82197.804051]  (
>> [82197.804448] rtnl_mutex
>> [82197.805330] ){+.+.+.}
>> [82197.806335] , at:
>> [82197.806872] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>> [82197.810915] 2 locks held by hostapd/4100:
>> [82197.813650]  #0:
>> [82197.814096]  (
>> [82197.814492] cb_lock
>> [82197.815112] ){++++++}
>> [82197.816115] , at:
>> [82197.816651] [<ffffffff8186d494>] genl_rcv+0x14/0x40
>> [82197.820260]  #1:
>> [82197.820711]  (
>> [82197.821108] genl_mutex
>> [82197.821989] ){+.+.+.}
>> [82197.822989] , at:
>> [82197.823529] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82197.827485] 2 locks held by hostapd/4392:
>> [82197.830218]  #0:
>> [82197.830672]  (
>> [82197.831065] cb_lock
>> [82197.831687] ){++++++}
>> [82197.832687] , at:
>> [82197.833223] [<ffffffff8186d494>] genl_rcv+0x14/0x40
>> [82197.836833]  #1:
>> [82197.837278]  (
>> [82197.837675] genl_mutex
>> [82197.838561] ){+.+.+.}
>> [82197.839572] , at:
>> [82197.840108] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82197.844067] 3 locks held by wpa_supplicant/4574:
>> [82197.847410]  #0:
>> [82197.847859]  (
>> [82197.848250] cb_lock
>> [82197.848874] ){++++++}
>> [82197.849877] , at:
>> [82197.850417] [<ffffffff8186d494>] genl_rcv+0x14/0x40
>> [82197.854025]  #1:
>> [82197.854476]  (
>> [82197.854872] genl_mutex
>> [82197.855755] ){+.+.+.}
>> [82197.856758] , at:
>> [82197.857294] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82197.861249]  #2:
>> [82197.861698]  (
>> [82197.862092] rtnl_mutex
>> [82197.862977] ){+.+.+.}
>> [82197.863978] , at:
>> [82197.864515] [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82197.868209] 2 locks held by hostapd/4733:
>> [82197.870943]  #0:
>> [82197.871387]  (
>> [82197.871783] cb_lock
>> [82197.872402] ){++++++}
>> [82197.873413] , at:
>> [82197.873947] [<ffffffff8186d494>] genl_rcv+0x14/0x40
>> [82197.877554]  #1:
>> [82197.878000]  (
>> [82197.878391] genl_mutex
>> [82197.879275] ){+.+.+.}
>> [82197.880281] , at:
>> [82197.880828] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82197.884784] 2 locks held by bash/5322:
>> [82197.887256]  #0:
>> [82197.887705]  (
>> [82197.888099] &tty->ldisc_sem
>> [82197.889417] ){++++.+}
>> [82197.890425] , at:
>> [82197.890960] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
>> [82197.895176]  #1:
>> [82197.895627]  (
>> [82197.896018] &ldata->atomic_read_lock
>> [82197.898117] ){+.+...}
>> [82197.899120] , at:
>> [82197.899658] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
>> [82197.903548] 2 locks held by bash/24789:
>> [82197.906113]  #0:
>> [82197.906564]  (
>> [82197.906957] &tty->ldisc_sem
>> [82197.908273] ){++++.+}
>> [82197.909276] , at:
>> [82197.909817] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
>> [82197.914676]  #1:
>> [82197.915123]  (
>> [82197.915518] &ldata->atomic_read_lock
>> [82197.917618] ){+.+...}
>> [82197.918621] , at:
>> [82197.919154] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
>> [82197.923029] 5 locks held by kworker/u8:1/1965:
>> [82197.926195]  #0:
>> [82197.926643]  (
>> [82197.927037] "%s"wiphy_name(local->hw.wiphy)
>> [82197.929742] ){++++.+}
>> [82197.930745] , at:
>> [82197.931279] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82197.935755]  #1:
>> [82197.936200]  (
>> [82197.936600] (&sdata->work)
>> [82197.937831] ){+.+.+.}
>> [82197.938834] , at:
>> [82197.939370] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82197.943864]  #2:
>> [82197.944311]  (
>> [82197.944706] &wdev->mtx
>> [82197.945590] ){+.+.+.}
>> [82197.946590] , at:
>> [82197.947160] [<ffffffffa0e65557>] ieee80211_sta_work+0x47/0x1b50 [mac80211]
>> [82197.952766]  #3:
>> [82197.953213]  (
>> [82197.953611] &local->sta_mtx
>> [82197.954929] ){+.+.+.}
>> [82197.955932] , at:
>> [82197.956485] [<ffffffffa0dffae6>] __sta_info_flush+0x86/0x190 [mac80211]
>> [82197.961829]  #4:
>> [82197.962276]  (
>> [82197.962671] &ar->conf_mutex
>> [82197.963989] ){+.+.+.}
>> [82197.964995] , at:
>> [82197.965541] [<ffffffffa12a3165>] ath10k_sta_state+0x205/0xbd0 [ath10k_core]
>> [82197.971233] 3 locks held by kworker/u8:3/2064:
>> [82197.974402]  #0:
>> [82197.974851]  (
>> [82197.975244] "%s""ath10k_wq"
>> [82197.976561] ){.+.+.+}
>> [82197.977565] , at:
>> [82197.978101] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82197.982578]  #1:
>> [82197.983025]  (
>> [82197.983424] (&(&ar->debug.nop_dwork)->work)
>> [82197.986131] ){+.+...}
>> [82197.987132] , at:
>> [82197.987670] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82197.992147]  #2:
>> [82197.992596]  (
>> [82197.992987] &ar->conf_mutex
>> [82197.994305] ){+.+.+.}
>> [82197.995308] , at:
>> [82197.995853] [<ffffffffa12acbb4>] ath10k_debug_nop_dwork+0x24/0x80 [ath10k_core]
>> [82198.001892] 4 locks held by kworker/0:2/2149:
>> [82198.004973]  #0:
>> [82198.005423]  (
>> [82198.005818] "events_freezable"
>> [82198.007396] ){.+.+..}
>> [82198.008400] , at:
>> [82198.008938] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82198.013414]  #1:
>> [82198.013863]  (
>> [82198.014255] (&local->restart_work)
>> [82198.016181] ){+.+...}
>> [82198.017184] , at:
>> [82198.017722] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82198.022202]  #2:
>> [82198.022649]  (
>> [82198.023042] rtnl_mutex
>> [82198.023924] ){+.+.+.}
>> [82198.024927] , at:
>> [82198.025463] [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82198.029160]  #3:
>> [82198.029613]  (
>> [82198.030007] &ar->conf_mutex
>> [82198.031326] ){+.+.+.}
>> [82198.032332] , at:
>> [82198.032880] [<ffffffffa12a8686>] ath10k_start+0x26/0x5d0 [ath10k_core]
>> [82198.038139] 3 locks held by kworker/3:3/2153:
>> [82198.041222]  #0:
>> [82198.041676]  (
>> [82198.042070] "events"
>> [82198.042782] ){.+.+.+}
>> [82198.043786] , at:
>> [82198.044320] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82198.048800]  #1:
>> [82198.049246]  (
>> [82198.049646] (linkwatch_work).work
>> [82198.051490] ){+.+.+.}
>> [82198.052497] , at:
>> [82198.053031] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82198.057510]  #2:
>> [82198.057957]  (
>> [82198.058351] rtnl_mutex
>> [82198.059238] ){+.+.+.}
>> [82198.060245] , at:
>> [82198.060788] [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82198.064488] 3 locks held by kworker/2:2/2984:
>> [82198.067571]  #0:
>> [82198.068016]  (
>> [82198.068413] "%s"("ipv6_addrconf")
>> [82198.070258] ){.+.+..}
>> [82198.071265] , at:
>> [82198.071808] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82198.076287]  #1:
>> [82198.076741]  (
>> [82198.077136] (addr_chk_work).work
>> [82198.078892] ){+.+...}
>> [82198.079899] , at:
>> [82198.080442] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82198.084919]  #2:
>> [82198.085367]  (
>> [82198.085766] rtnl_mutex
>> [82198.086651] ){+.+.+.}
>> [82198.087657] , at:
>> [82198.088193] [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82198.091893] 1 lock held by ip/3840:
>> [82198.094110]  #0:
>> [82198.094562]  (
>> [82198.094958] rtnl_mutex
>> [82198.095847] ){+.+.+.}
>> [82198.096851] , at:
>> [82198.097385] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>> [82198.101432] 1 lock held by ip/3843:
>> [82198.103651]  #0:
>> [82198.104100]  (
>> [82198.104499] rtnl_mutex
>> [82198.105380] ){+.+.+.}
>> [82198.106387] , at:
>> [82198.106930] [<ffffffff8186959e>] netlink_dump+0x1e/0x290
>> [82198.110974] 1 lock held by ip/3845:
>> [82198.113192]  #0:
>> [82198.113643]  (
>> [82198.114036] rtnl_mutex
>> [82198.114922] ){+.+.+.}
>> [82198.115928] , at:
>> [82198.116470] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>>
>> [82198.120727] =============================================
>>
>> [82198.125246] INFO: task hostapd:4733 blocked for more than 180 seconds.
>> [82198.130511]       Tainted: G        W       4.9.0-rc6+ #9
>> [82198.134637] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
>> [82198.141190] hostapd         D    0  4733      1 0x00000000
>> [82198.145419]  ffff8802114d3700 000000000000d4bf ffff880214de0000 ffff8801f1ca8000
>> [82198.151603]  ffff88021e2998d8 ffffc9000a5ffb40 ffffffff819322eb 0000000000000006
>> [82198.157785]  ffff8801f1ca8828 000000000a5ffb38 ffff88021e2998d8 0000000000000000
>> [82198.163963] Call Trace:
>> [82198.165138]  [<ffffffff819322eb>] ? __schedule+0x2fb/0xb30
>> [82198.169348]  [<ffffffff81932b58>] schedule+0x38/0x90
>> [82198.173040]  [<ffffffff81932f20>] schedule_preempt_disabled+0x10/0x20
>> [82198.178581]  [<ffffffff81934b15>] mutex_lock_nested+0x175/0x3f0
>> [82198.183231]  [<ffffffff8186d8d4>] ? genl_rcv_msg+0xa4/0xb0
>> [82198.187459]  [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82198.191504]  [<ffffffff8186d830>] ? genl_family_rcv_msg+0x370/0x370
>> [82198.196509]  [<ffffffff8186cddf>] netlink_rcv_skb+0x9f/0xc0
>> [82198.200809]  [<ffffffff8186d4a3>] genl_rcv+0x23/0x40
>> [82198.204499]  [<ffffffff8186c76d>] netlink_unicast+0x1cd/0x2e0
>> [82198.208974]  [<ffffffff8186c6e9>] ? netlink_unicast+0x149/0x2e0
>> [82198.213624]  [<ffffffff8186cb62>] netlink_sendmsg+0x2e2/0x390
>> [82198.218099]  [<ffffffff8180ca73>] sock_sendmsg+0x33/0x40
>> [82198.222136]  [<ffffffff8180d55b>] ___sys_sendmsg+0x2db/0x2f0
>> [82198.226523]  [<ffffffff81172eba>] ? up_write+0x1a/0x40
>> [82198.230391]  [<ffffffff81357048>] ? ext4_file_write_iter+0x88/0x340
>> [82198.235387]  [<ffffffff81195c0d>] ? debug_lockdep_rcu_enabled+0x1d/0x20
>> [82198.241083]  [<ffffffff8180e170>] __sys_sendmsg+0x40/0x70
>> [82198.245211]  [<ffffffff8180e1ad>] SyS_sendmsg+0xd/0x20
>> [82198.249075]  [<ffffffff81939f45>] entry_SYSCALL_64_fastpath+0x23/0xc6
>> [82198.254241]
>> Showing all locks held in the system:
>> [82198.257876] 2 locks held by khungtaskd/37:
>> [82198.260698]  #0:
>> [82198.261143]  (
>> [82198.261544] rcu_read_lock
>> [82198.262692] ){......}
>> [82198.263696] , at:
>> [82198.264232] [<ffffffff811ebd5c>] watchdog+0x9c/0x600
>> [82198.267927]  #1:
>> [82198.268374]  (
>> [82198.268770] tasklist_lock
>> [82198.269914] ){.+.+..}
>> [82198.270919] , at:
>> [82198.271459] [<ffffffff8117576d>] debug_show_all_locks+0x3d/0x1a0
>> [82198.276203] 2 locks held by agetty/1149:
>> [82198.278852]  #0:
>> [82198.279299]  (
>> [82198.279700] &tty->ldisc_sem
>> [82198.281017] ){++++.+}
>> [82198.282020] , at:
>> [82198.282558] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
>> [82198.286775]  #1:
>> [82198.287219]  (
>> [82198.287618] &ldata->atomic_read_lock
>> [82198.289719] ){+.+...}
>> [82198.290723] , at:
>> [82198.291257] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
>> [82198.295134] 1 lock held by mission-control/1506:
>> [82198.298476]  #0:
>> [82198.298921]  (
>> [82198.299317] rtnl_mutex
>> [82198.300203] ){+.+.+.}
>> [82198.301209] , at:
>> [82198.301747] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>> [82198.305792] 2 locks held by bash/1691:
>> [82198.308266]  #0:
>> [82198.308718]  (
>> [82198.309114] &tty->ldisc_sem
>> [82198.310435] ){++++.+}
>> [82198.311441] , at:
>> [82198.311983] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
>> [82198.316207]  #1:
>> [82198.316660]  (
>> [82198.317057] &ldata->atomic_read_lock
>> [82198.319153] ){+.+...}
>> [82198.320158] , at:
>> [82198.320696] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
>> [82198.324567] 1 lock held by evolution-calen/1768:
>> [82198.327911]  #0:
>> [82198.328356]  (
>> [82198.328752] rtnl_mutex
>> [82198.329635] ){+.+.+.}
>> [82198.330639] , at:
>> [82198.331172] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>> [82198.335221] 2 locks held by hostapd/4100:
>> [82198.337954]  #0:
>> [82198.338399]  (
>> [82198.338813] cb_lock
>> [82198.339432] ){++++++}
>> [82198.340437] , at:
>> [82198.340975] [<ffffffff8186d494>] genl_rcv+0x14/0x40
>> [82198.344585]  #1:
>> [82198.345030]  (
>> [82198.345421] genl_mutex
>> [82198.346306] ){+.+.+.}
>> [82198.347310] , at:
>> [82198.347847] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82198.351804] 2 locks held by hostapd/4392:
>> [82198.354538]  #0:
>> [82198.354983]  (
>> [82198.355379] cb_lock
>> [82198.356001] ){++++++}
>> [82198.357002] , at:
>> [82198.357539] [<ffffffff8186d494>] genl_rcv+0x14/0x40
>> [82198.361149]  #1:
>> [82198.361599]  (
>> [82198.361991] genl_mutex
>> [82198.362875] ){+.+.+.}
>> [82198.363880] , at:
>> [82198.364414] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82198.368373] 3 locks held by wpa_supplicant/4574:
>> [82198.371714]  #0:
>> [82198.372161]  (
>> [82198.372560] cb_lock
>> [82198.373180] ){++++++}
>> [82198.374185] , at:
>> [82198.374723] [<ffffffff8186d494>] genl_rcv+0x14/0x40
>> [82198.378332]  #1:
>> [82198.378782]  (
>> [82198.379175] genl_mutex
>> [82198.380059] ){+.+.+.}
>> [82198.381066] , at:
>> [82198.381604] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82198.385560]  #2:
>> [82198.386005]  (
>> [82198.386401] rtnl_mutex
>> [82198.387283] ){+.+.+.}
>> [82198.388284] , at:
>> [82198.388821] [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82198.392520] 2 locks held by hostapd/4733:
>> [82198.395258]  #0:
>> [82198.395708]  (
>> [82198.396101] cb_lock
>> [82198.396726] ){++++++}
>> [82198.397730] , at:
>> [82198.398266] [<ffffffff8186d494>] genl_rcv+0x14/0x40
>> [82198.401874]  #1:
>> [82198.402318]  (
>> [82198.402714] genl_mutex
>> [82198.403598] ){+.+.+.}
>> [82198.404602] , at:
>> [82198.405138] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82198.409094] 2 locks held by bash/5322:
>> [82198.411571]  #0:
>> [82198.412018]  (
>> [82198.412412] &tty->ldisc_sem
>> [82198.413729] ){++++.+}
>> [82198.414735] , at:
>> [82198.415269] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
>> [82198.419487]  #1:
>> [82198.419935]  (
>> [82198.420329] &ldata->atomic_read_lock
>> [82198.422428] ){+.+...}
>> [82198.423433] , at:
>> [82198.423970] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
>> [82198.427840] 2 locks held by bash/24789:
>> [82198.430403]  #0:
>> [82198.430855]  (
>> [82198.431248] &tty->ldisc_sem
>> [82198.432568] ){++++.+}
>> [82198.433570] , at:
>> [82198.434106] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
>> [82198.438322]  #1:
>> [82198.438776]  (
>> [82198.439169] &ldata->atomic_read_lock
>> [82198.441270] ){+.+...}
>> [82198.442919] , at:
>> [82198.443453] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
>> [82198.447342] 5 locks held by kworker/u8:1/1965:
>> [82198.450512]  #0:
>> [82198.450959]  (
>> [82198.451350] "%s"wiphy_name(local->hw.wiphy)
>> [82198.454057] ){++++.+}
>> [82198.455059] , at:
>> [82198.455598] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82198.460074]  #1:
>> [82198.460527]  (
>> [82198.460932] (&sdata->work)
>> [82198.462167] ){+.+.+.}
>> [82198.463172] , at:
>> [82198.463710] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82198.468186]  #2:
>> [82198.468635]  (
>> [82198.469029] &wdev->mtx
>> [82198.469913] ){+.+.+.}
>> [82198.470920] , at:
>> [82198.471487] [<ffffffffa0e65557>] ieee80211_sta_work+0x47/0x1b50 [mac80211]
>> [82198.477106]  #3:
>> [82198.477556]  (
>> [82198.477947] &local->sta_mtx
>> [82198.479266] ){+.+.+.}
>> [82198.480270] , at:
>> [82198.480821] [<ffffffffa0dffae6>] __sta_info_flush+0x86/0x190 [mac80211]
>> [82198.486165]  #4:
>> [82198.486617]  (
>> [82198.487008] &ar->conf_mutex
>> [82198.488327] ){+.+.+.}
>> [82198.489332] , at:
>> [82198.489877] [<ffffffffa12a3165>] ath10k_sta_state+0x205/0xbd0 [ath10k_core]
>> [82198.495570] 3 locks held by kworker/u8:3/2064:
>> [82198.498739]  #0:
>> [82198.499184]  (
>> [82198.499585] "%s""ath10k_wq"
>> [82198.500904] ){.+.+.+}
>> [82198.501911] , at:
>> [82198.502444] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82198.506921]  #1:
>> [82198.507370]  (
>> [82198.507771] (&(&ar->debug.nop_dwork)->work)
>> [82198.510480] ){+.+...}
>> [82198.511487] , at:
>> [82198.512021] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82198.516500]  #2:
>> [82198.516945]  (
>> [82198.517336] &ar->conf_mutex
>> [82198.518655] ){+.+.+.}
>> [82198.519659] , at:
>> [82198.520201] [<ffffffffa12acbb4>] ath10k_debug_nop_dwork+0x24/0x80 [ath10k_core]
>> [82198.526242] 4 locks held by kworker/0:2/2149:
>> [82198.529326]  #0:
>> [82198.529776]  (
>> [82198.530167] "events_freezable"
>> [82198.531746] ){.+.+..}
>> [82198.532748] , at:
>> [82198.533284] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82198.537762]  #1:
>> [82198.538209]  (
>> [82198.538608] (&local->restart_work)
>> [82198.540537] ){+.+...}
>> [82198.541543] , at:
>> [82198.542077] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82198.546554]  #2:
>> [82198.547001]  (
>> [82198.547395] rtnl_mutex
>> [82198.548280] ){+.+.+.}
>> [82198.549284] , at:
>> [82198.549824] [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82198.553519]  #3:
>> [82198.553964]  (
>> [82198.554355] &ar->conf_mutex
>> [82198.555674] ){+.+.+.}
>> [82198.556677] , at:
>> [82198.557216] [<ffffffffa12a8686>] ath10k_start+0x26/0x5d0 [ath10k_core]
>> [82198.562479] 3 locks held by kworker/3:3/2153:
>> [82198.565563]  #0:
>> [82198.566011]  (
>> [82198.566407] "events"
>> [82198.567122] ){.+.+.+}
>> [82198.568126] , at:
>> [82198.568666] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82198.573148]  #1:
>> [82198.573598]  (
>> [82198.573989] (linkwatch_work).work
>> [82198.575827] ){+.+.+.}
>> [82198.576831] , at:
>> [82198.577365] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82198.581846]  #2:
>> [82198.582291]  (
>> [82198.582690] rtnl_mutex
>> [82198.583574] ){+.+.+.}
>> [82198.584578] , at:
>> [82198.585114] [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82198.588810] 3 locks held by kworker/2:2/2984:
>> [82198.591894]  #0:
>> [82198.592339]  (
>> [82198.592740] "%s"("ipv6_addrconf")
>> [82198.594582] ){.+.+..}
>> [82198.595586] , at:
>> [82198.596120] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82198.600603]  #1:
>> [82198.601049]  (
>> [82198.601445] (addr_chk_work).work
>> [82198.603198] ){+.+...}
>> [82198.604203] , at:
>> [82198.604744] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82198.609219]  #2:
>> [82198.609671]  (
>> [82198.610062] rtnl_mutex
>> [82198.610947] ){+.+.+.}
>> [82198.611951] , at:
>> [82198.612491] [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82198.616188] 1 lock held by ip/3840:
>> [82198.618404]  #0:
>> [82198.618853]  (
>> [82198.619244] rtnl_mutex
>> [82198.620128] ){+.+.+.}
>> [82198.621135] , at:
>> [82198.621672] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>> [82198.625726] 1 lock held by ip/3843:
>> [82198.627941]  #0:
>> [82198.628386]  (
>> [82198.628782] rtnl_mutex
>> [82198.629665] ){+.+.+.}
>> [82198.630672] , at:
>> [82198.631207] [<ffffffff8186959e>] netlink_dump+0x1e/0x290
>> [82198.635251] 1 lock held by ip/3845:
>> [82198.637470]  #0:
>> [82198.637920]  (
>> [82198.638311] rtnl_mutex
>> [82198.639195] ){+.+.+.}
>> [82198.640200] , at:
>> [82198.640737] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>>
>> [82198.644997] =============================================
>>
>> [82198.649338] INFO: task kworker/u8:1:1965 blocked for more than 180 seconds.
>> [82198.655030]       Tainted: G        W       4.9.0-rc6+ #9
>> [82198.659158] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
>> [82198.665739] kworker/u8:1    D    0  1965      2 0x00000000
>> [82198.669993] Workqueue: phy0 ieee80211_iface_work [mac80211]
>> [82198.674305]  ffff8802114d6900 000000000000abfd ffffffff81e11580 ffff8801f1c0a640
>> [82198.680525]  ffff88021e2198d8 ffffc9000e6a3990 ffffffff819322eb 0000000000000006
>> [82198.686705]  ffff8801f1c0ae68 000000000e6a3988 ffff88021e2198d8 0000000000000000
>> [82198.692880] Call Trace:
>> [82198.694054]  [<ffffffff819322eb>] ? __schedule+0x2fb/0xb30
>> [82198.698266]  [<ffffffff81932b58>] schedule+0x38/0x90
>> [82198.701974]  [<ffffffff81932f20>] schedule_preempt_disabled+0x10/0x20
>> [82198.707140]  [<ffffffff81934b15>] mutex_lock_nested+0x175/0x3f0
>> [82198.711796]  [<ffffffffa12a3165>] ? ath10k_sta_state+0x205/0xbd0 [ath10k_core]
>> [82198.717750]  [<ffffffffa12a3165>] ath10k_sta_state+0x205/0xbd0 [ath10k_core]
>> [82198.723545]  [<ffffffffa0df5d7f>] drv_sta_state+0xaf/0xa30 [mac80211]
>> [82198.728742]  [<ffffffffa0dfe7d0>] sta_info_move_state+0x2a0/0x3c0 [mac80211]
>> [82198.734529]  [<ffffffffa0dff6ab>] __sta_info_destroy_part2+0x7b/0x230 [mac80211]
>> [82198.740663]  [<ffffffffa0dffb5b>] __sta_info_flush+0xfb/0x190 [mac80211]
>> [82198.746110]  [<ffffffffa0e61096>] ieee80211_set_disassoc+0xc6/0x430 [mac80211]
>> [82198.752087]  [<ffffffffa0e61433>] ieee80211_sta_connection_lost+0x33/0x70 [mac80211]
>> [82198.758592]  [<ffffffffa0e65c69>] ieee80211_sta_work+0x759/0x1b50 [mac80211]
>> [82198.764368]  [<ffffffff8117707f>] ? mark_held_locks+0x6f/0xa0
>> [82198.768858]  [<ffffffff8193981e>] ? _raw_spin_unlock_irqrestore+0x4e/0x70
>> [82198.774372]  [<ffffffff8117726d>] ? trace_hardirqs_on+0xd/0x10
>> [82198.778947]  [<ffffffffa0e143d3>] ieee80211_iface_work+0x373/0x410 [mac80211]
>> [82198.784810]  [<ffffffff8113a804>] ? process_one_work+0x164/0x740
>> [82198.789545]  [<ffffffff8113a883>] process_one_work+0x1e3/0x740
>> [82198.794103]  [<ffffffff8113a804>] ? process_one_work+0x164/0x740
>> [82198.798835]  [<ffffffff8113ae26>] worker_thread+0x46/0x4f0
>> [82198.803066]  [<ffffffff8113ade0>] ? process_one_work+0x740/0x740
>> [82198.807800]  [<ffffffff8114166a>] kthread+0xfa/0x110
>> [82198.811493]  [<ffffffff81141570>] ? kthread_park+0x60/0x60
>> [82198.815712]  [<ffffffff8193a1ea>] ret_from_fork+0x2a/0x40
>> [82198.819837]
>> Showing all locks held in the system:
>> [82198.823469] 2 locks held by khungtaskd/37:
>> [82198.826309]  #0:
>> [82198.826762]  (
>> [82198.827157] rcu_read_lock
>> [82198.828301] ){......}
>> [82198.829305] , at:
>> [82198.829844] [<ffffffff811ebd5c>] watchdog+0x9c/0x600
>> [82198.833539]  #1:
>> [82198.833984]  (
>> [82198.834375] tasklist_lock
>> [82198.835519] ){.+.+..}
>> [82198.836526] , at:
>> [82198.837060] [<ffffffff8117576d>] debug_show_all_locks+0x3d/0x1a0
>> [82198.841813] 2 locks held by agetty/1149:
>> [82198.844464]  #0:
>> [82198.844915]  (
>> [82198.845309] &tty->ldisc_sem
>> [82198.846627] ){++++.+}
>> [82198.847631] , at:
>> [82198.848164] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
>> [82198.852381]  #1:
>> [82198.852832]  (
>> [82198.853225] &ldata->atomic_read_lock
>> [82198.855325] ){+.+...}
>> [82198.856328] , at:
>> [82198.856867] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
>> [82198.860743] 1 lock held by mission-control/1506:
>> [82198.864086]  #0:
>> [82198.864537]  (
>> [82198.864929] rtnl_mutex
>> [82198.865813] ){+.+.+.}
>> [82198.866817] , at:
>> [82198.867353] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>> [82198.871407] 2 locks held by bash/1691:
>> [82198.873879]  #0:
>> [82198.874327]  (
>> [82198.874722] &tty->ldisc_sem
>> [82198.876041] ){++++.+}
>> [82198.877043] , at:
>> [82198.877583] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
>> [82198.881799]  #1:
>> [82198.882244]  (
>> [82198.882644] &ldata->atomic_read_lock
>> [82198.884743] ){+.+...}
>> [82198.885746] , at:
>> [82198.886280] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
>> [82198.890149] 1 lock held by evolution-calen/1768:
>> [82198.893488]  #0:
>> [82198.893937]  (
>> [82198.894331] rtnl_mutex
>> [82198.895214] ){+.+.+.}
>> [82198.896218] , at:
>> [82198.896757] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>> [82198.900800] 2 locks held by hostapd/4100:
>> [82198.903538]  #0:
>> [82198.903985]  (
>> [82198.904386] cb_lock
>> [82198.905010] ){++++++}
>> [82198.906017] , at:
>> [82198.906554] [<ffffffff8186d494>] genl_rcv+0x14/0x40
>> [82198.910163]  #1:
>> [82198.910612]  (
>> [82198.911006] genl_mutex
>> [82198.911887] ){+.+.+.}
>> [82198.912888] , at:
>> [82198.913423] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82198.917382] 2 locks held by hostapd/4392:
>> [82198.920116]  #0:
>> [82198.920565]  (
>> [82198.920958] cb_lock
>> [82198.921579] ){++++++}
>> [82198.922580] , at:
>> [82198.923116] [<ffffffff8186d494>] genl_rcv+0x14/0x40
>> [82198.926727]  #1:
>> [82198.927175]  (
>> [82198.927570] genl_mutex
>> [82198.928450] ){+.+.+.}
>> [82198.929456] , at:
>> [82198.929991] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82198.933949] 3 locks held by wpa_supplicant/4574:
>> [82198.937289]  #0:
>> [82198.937740]  (
>> [82198.938134] cb_lock
>> [82198.938757] ){++++++}
>> [82198.939759] , at:
>> [82198.940292] [<ffffffff8186d494>] genl_rcv+0x14/0x40
>> [82198.943903]  #1:
>> [82198.944351]  (
>> [82198.944745] genl_mutex
>> [82198.945631] ){+.+.+.}
>> [82198.946635] , at:
>> [82198.947170] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82198.951126]  #2:
>> [82198.951575]  (
>> [82198.951965] rtnl_mutex
>> [82198.952849] ){+.+.+.}
>> [82198.953850] , at:
>> [82198.954386] [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82198.958082] 2 locks held by hostapd/4733:
>> [82198.960818]  #0:
>> [82198.961265]  (
>> [82198.961664] cb_lock
>> [82198.962284] ){++++++}
>> [82198.963288] , at:
>> [82198.963826] [<ffffffff8186d494>] genl_rcv+0x14/0x40
>> [82198.967437]  #1:
>> [82198.967886]  (
>> [82198.968280] genl_mutex
>> [82198.969163] ){+.+.+.}
>> [82198.970164] , at:
>> [82198.970704] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82198.974662] 2 locks held by bash/5322:
>> [82198.977138]  #0:
>> [82198.977587]  (
>> [82198.977978] &tty->ldisc_sem
>> [82198.979295] ){++++.+}
>> [82198.980299] , at:
>> [82198.980839] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
>> [82198.985056]  #1:
>> [82198.985500]  (
>> [82198.985900] &ldata->atomic_read_lock
>> [82198.987997] ){+.+...}
>> [82198.989002] , at:
>> [82198.989541] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
>> [82198.993409] 2 locks held by bash/24789:
>> [82198.995969]  #0:
>> [82198.996416]  (
>> [82198.997455] &tty->ldisc_sem
>> [82198.998773] ){++++.+}
>> [82198.999777] , at:
>> [82199.000313] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
>> [82199.004534]  #1:
>> [82199.004983]  (
>> [82199.005377] &ldata->atomic_read_lock
>> [82199.007476] ){+.+...}
>> [82199.008480] , at:
>> [82199.009018] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
>> [82199.012891] 5 locks held by kworker/u8:1/1965:
>> [82199.016057]  #0:
>> [82199.016504]  (
>> [82199.016905] "%s"wiphy_name(local->hw.wiphy)
>> [82199.019615] ){++++.+}
>> [82199.020621] , at:
>> [82199.021155] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82199.025633]  #1:
>> [82199.026080]  (
>> [82199.026471] (&sdata->work)
>> [82199.027702] ){+.+.+.}
>> [82199.028706] , at:
>> [82199.029242] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82199.033719]  #2:
>> [82199.034167]  (
>> [82199.034564] &wdev->mtx
>> [82199.035444] ){+.+.+.}
>> [82199.036446] , at:
>> [82199.037006] [<ffffffffa0e65557>] ieee80211_sta_work+0x47/0x1b50 [mac80211]
>> [82199.042610]  #3:
>> [82199.043059]  (
>> [82199.043455] &local->sta_mtx
>> [82199.044775] ){+.+.+.}
>> [82199.045779] , at:
>> [82199.046328] [<ffffffffa0dffae6>] __sta_info_flush+0x86/0x190 [mac80211]
>> [82199.051671]  #4:
>> [82199.052119]  (
>> [82199.052520] &ar->conf_mutex
>> [82199.053839] ){+.+.+.}
>> [82199.054845] , at:
>> [82199.055384] [<ffffffffa12a3165>] ath10k_sta_state+0x205/0xbd0 [ath10k_core]
>> [82199.061077] 3 locks held by kworker/u8:3/2064:
>> [82199.064243]  #0:
>> [82199.064692]  (
>> [82199.065086] "%s""ath10k_wq"
>> [82199.066402] ){.+.+.+}
>> [82199.067406] , at:
>> [82199.067944] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82199.072422]  #1:
>> [82199.072871]  (
>> [82199.073265] (&(&ar->debug.nop_dwork)->work)
>> [82199.075972] ){+.+...}
>> [82199.076973] , at:
>> [82199.077510] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82199.081989]  #2:
>> [82199.082434]  (
>> [82199.082832] &ar->conf_mutex
>> [82199.084150] ){+.+.+.}
>> [82199.085154] , at:
>> [82199.085698] [<ffffffffa12acbb4>] ath10k_debug_nop_dwork+0x24/0x80 [ath10k_core]
>> [82199.091736] 4 locks held by kworker/0:2/2149:
>> [82199.094817]  #0:
>> [82199.095265]  (
>> [82199.095663] "events_freezable"
>> [82199.097240] ){.+.+..}
>> [82199.098247] , at:
>> [82199.098784] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82199.103261]  #1:
>> [82199.103710]  (
>> [82199.104101] (&local->restart_work)
>> [82199.106027] ){+.+...}
>> [82199.107029] , at:
>> [82199.107567] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82199.112044]  #2:
>> [82199.112489]  (
>> [82199.112884] rtnl_mutex
>> [82199.113768] ){+.+.+.}
>> [82199.114771] , at:
>> [82199.115307] [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82199.119002]  #3:
>> [82199.119449]  (
>> [82199.119848] &ar->conf_mutex
>> [82199.121166] ){+.+.+.}
>> [82199.122169] , at:
>> [82199.122711] [<ffffffffa12a8686>] ath10k_start+0x26/0x5d0 [ath10k_core]
>> [82199.127968] 3 locks held by kworker/3:3/2153:
>> [82199.131048]  #0:
>> [82199.131496]  (
>> [82199.131894] "events"
>> [82199.132607] ){.+.+.+}
>> [82199.133609] , at:
>> [82199.134143] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82199.138623]  #1:
>> [82199.139070]  (
>> [82199.139463] (linkwatch_work).work
>> [82199.141302] ){+.+.+.}
>> [82199.142306] , at:
>> [82199.142844] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82199.147321]  #2:
>> [82199.147770]  (
>> [82199.148161] rtnl_mutex
>> [82199.149044] ){+.+.+.}
>> [82199.150048] , at:
>> [82199.150587] [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82199.154284] 3 locks held by kworker/2:2/2984:
>> [82199.157363]  #0:
>> [82199.157815]  (
>> [82199.158210] "%s"("ipv6_addrconf")
>> [82199.160049] ){.+.+..}
>> [82199.161052] , at:
>> [82199.161590] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82199.166067]  #1:
>> [82199.166511]  (
>> [82199.166909] (addr_chk_work).work
>> [82199.168663] ){+.+...}
>> [82199.169666] , at:
>> [82199.170201] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82199.174678]  #2:
>> [82199.175126]  (
>> [82199.175527] rtnl_mutex
>> [82199.176410] ){+.+.+.}
>> [82199.177415] , at:
>> [82199.177952] [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82199.181649] 1 lock held by ip/3840:
>> [82199.183860]  #0:
>> [82199.184307]  (
>> [82199.184702] rtnl_mutex
>> [82199.185586] ){+.+.+.}
>> [82199.186587] , at:
>> [82199.187120] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>> [82199.191166] 1 lock held by ip/3843:
>> [82199.193381]  #0:
>> [82199.193832]  (
>> [82199.194228] rtnl_mutex
>> [82199.195110] ){+.+.+.}
>> [82199.196111] , at:
>> [82199.196650] [<ffffffff8186959e>] netlink_dump+0x1e/0x290
>> [82199.200692] 1 lock held by ip/3845:
>> [82199.202905]  #0:
>> [82199.203353]  (
>> [82199.203750] rtnl_mutex
>> [82199.204637] ){+.+.+.}
>> [82199.205642] , at:
>> [82199.206175] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>>
>> [82199.210434] =============================================
>>
>> [82199.214770] INFO: task kworker/u8:3:2064 blocked for more than 180 seconds.
>> [82199.220464]       Tainted: G        W       4.9.0-rc6+ #9
>> [82199.224590] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
>> [82199.231148] kworker/u8:3    D    0  2064      2 0x00000000
>> [82199.235388] Workqueue: ath10k_wq ath10k_debug_nop_dwork [ath10k_core]
>> [82199.240577]  ffff880210f72d00 000000000000402d ffff880214de4c80 ffff880210c3cc80
>> [82199.246767]  ffff88021e3998d8 ffffc9000e7d3cd0 ffffffff819322eb 0000000000000006
>> [82199.252950]  ffff880210c3d4a8 000000000e7d3cc8 ffff88021e3998d8 0000000000000000
>> [82199.259135] Call Trace:
>> [82199.260313]  [<ffffffff819322eb>] ? __schedule+0x2fb/0xb30
>> [82199.264540]  [<ffffffff81932b58>] schedule+0x38/0x90
>> [82199.268232]  [<ffffffff81932f20>] schedule_preempt_disabled+0x10/0x20
>> [82199.273408]  [<ffffffff81934b15>] mutex_lock_nested+0x175/0x3f0
>> [82199.278444]  [<ffffffffa12acbb4>] ? ath10k_debug_nop_dwork+0x24/0x80 [ath10k_core]
>> [82199.284757]  [<ffffffffa12acbb4>] ath10k_debug_nop_dwork+0x24/0x80 [ath10k_core]
>> [82199.290889]  [<ffffffff8113a883>] process_one_work+0x1e3/0x740
>> [82199.295457]  [<ffffffff8113a804>] ? process_one_work+0x164/0x740
>> [82199.300197]  [<ffffffff8113ae26>] worker_thread+0x46/0x4f0
>> [82199.304418]  [<ffffffff8113ade0>] ? process_one_work+0x740/0x740
>> [82199.309157]  [<ffffffff8114166a>] kthread+0xfa/0x110
>> [82199.312851]  [<ffffffff81141570>] ? kthread_park+0x60/0x60
>> [82199.317071]  [<ffffffff8193a1ea>] ret_from_fork+0x2a/0x40
>> [82199.321203]
>> Showing all locks held in the system:
>> [82199.324841] 2 locks held by khungtaskd/37:
>> [82199.327667]  #0:
>> [82199.328116]  (
>> [82199.328510] rcu_read_lock
>> [82199.329657] ){......}
>> [82199.330665] , at:
>> [82199.331203] [<ffffffff811ebd5c>] watchdog+0x9c/0x600
>> [82199.334900]  #1:
>> [82199.335346]  (
>> [82199.335748] tasklist_lock
>> [82199.336898] ){.+.+..}
>> [82199.337905] , at:
>> [82199.338443] [<ffffffff8117576d>] debug_show_all_locks+0x3d/0x1a0
>> [82199.343193] 2 locks held by agetty/1149:
>> [82199.345845]  #0:
>> [82199.346293]  (
>> [82199.346692] &tty->ldisc_sem
>> [82199.348018] ){++++.+}
>> [82199.349023] , at:
>> [82199.349564] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
>> [82199.353782]  #1:
>> [82199.354230]  (
>> [82199.354628] &ldata->atomic_read_lock
>> [82199.356734] ){+.+...}
>> [82199.357743] , at:
>> [82199.358280] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
>> [82199.362162] 1 lock held by mission-control/1506:
>> [82199.365510]  #0:
>> [82199.365963]  (
>> [82199.366356] rtnl_mutex
>> [82199.367241] ){+.+.+.}
>> [82199.368246] , at:
>> [82199.368784] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>> [82199.372829] 2 locks held by bash/1691:
>> [82199.375305]  #0:
>> [82199.375762]  (
>> [82199.376158] &tty->ldisc_sem
>> [82199.377477] ){++++.+}
>> [82199.378485] , at:
>> [82199.379026] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
>> [82199.383249]  #1:
>> [82199.383701]  (
>> [82199.384096] &ldata->atomic_read_lock
>> [82199.386198] ){+.+...}
>> [82199.387205] , at:
>> [82199.387746] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
>> [82199.391616] 1 lock held by evolution-calen/1768:
>> [82199.394963]  #0:
>> [82199.395411]  (
>> [82199.395812] rtnl_mutex
>> [82199.396700] ){+.+.+.}
>> [82199.397708] , at:
>> [82199.398244] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>> [82199.402292] 2 locks held by hostapd/4100:
>> [82199.405033]  #0:
>> [82199.405480]  (
>> [82199.405890] cb_lock
>> [82199.406511] ){++++++}
>> [82199.407521] , at:
>> [82199.408062] [<ffffffff8186d494>] genl_rcv+0x14/0x40
>> [82199.411675]  #1:
>> [82199.412122]  (
>> [82199.412518] genl_mutex
>> [82199.413402] ){+.+.+.}
>> [82199.414409] , at:
>> [82199.414950] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82199.418910] 2 locks held by hostapd/4392:
>> [82199.421649]  #0:
>> [82199.422097]  (
>> [82199.422493] cb_lock
>> [82199.423117] ){++++++}
>> [82199.424121] , at:
>> [82199.424660] [<ffffffff8186d494>] genl_rcv+0x14/0x40
>> [82199.428269]  #1:
>> [82199.428719]  (
>> [82199.429112] genl_mutex
>> [82199.429997] ){+.+.+.}
>> [82199.431003] , at:
>> [82199.431537] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82199.435501] 3 locks held by wpa_supplicant/4574:
>> [82199.438843]  #0:
>> [82199.439290]  (
>> [82199.439704] cb_lock
>> [82199.440324] ){++++++}
>> [82199.441332] , at:
>> [82199.441872] [<ffffffff8186d494>] genl_rcv+0x14/0x40
>> [82199.445480]  #1:
>> [82199.445930]  (
>> [82199.446326] genl_mutex
>> [82199.447207] ){+.+.+.}
>> [82199.448209] , at:
>> [82199.448746] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82199.452705]  #2:
>> [82199.453152]  (
>> [82199.453543] rtnl_mutex
>> [82199.454428] ){+.+.+.}
>> [82199.455432] , at:
>> [82199.455970] [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82199.459667] 2 locks held by hostapd/4733:
>> [82199.462401]  #0:
>> [82199.462850]  (
>> [82199.463241] cb_lock
>> [82199.463866] ){++++++}
>> [82199.464870] , at:
>> [82199.465404] [<ffffffff8186d494>] genl_rcv+0x14/0x40
>> [82199.469020]  #1:
>> [82199.469467]  (
>> [82199.469863] genl_mutex
>> [82199.470747] ){+.+.+.}
>> [82199.471752] , at:
>> [82199.472285] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82199.476244] 2 locks held by bash/5322:
>> [82199.478718]  #0:
>> [82199.479166]  (
>> [82199.479568] &tty->ldisc_sem
>> [82199.480892] ){++++.+}
>> [82199.481896] , at:
>> [82199.482430] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
>> [82199.486649]  #1:
>> [82199.487096]  (
>> [82199.487490] &ldata->atomic_read_lock
>> [82199.489589] ){+.+...}
>> [82199.490593] , at:
>> [82199.491126] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
>> [82199.494998] 2 locks held by bash/24789:
>> [82199.497563]  #0:
>> [82199.498010]  (
>> [82199.498406] &tty->ldisc_sem
>> [82199.499723] ){++++.+}
>> [82199.500728] , at:
>> [82199.501261] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
>> [82199.505479]  #1:
>> [82199.505931]  (
>> [82199.506322] &ldata->atomic_read_lock
>> [82199.508421] ){+.+...}
>> [82199.509425] , at:
>> [82199.509962] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
>> [82199.513836] 5 locks held by kworker/u8:1/1965:
>> [82199.517005]  #0:
>> [82199.517453]  (
>> [82199.517848] "%s"wiphy_name(local->hw.wiphy)
>> [82199.520563] ){++++.+}
>> [82199.522214] , at:
>> [82199.522759] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82199.527237]  #1:
>> [82199.527691]  (
>> [82199.528085] (&sdata->work)
>> [82199.529321] ){+.+.+.}
>> [82199.530323] , at:
>> [82199.530862] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82199.535345]  #2:
>> [82199.535797]  (
>> [82199.536191] &wdev->mtx
>> [82199.537075] ){+.+.+.}
>> [82199.538079] , at:
>> [82199.538651] [<ffffffffa0e65557>] ieee80211_sta_work+0x47/0x1b50 [mac80211]
>> [82199.544262]  #3:
>> [82199.544715]  (
>> [82199.545109] &local->sta_mtx
>> [82199.546426] ){+.+.+.}
>> [82199.547430] , at:
>> [82199.547990] [<ffffffffa0dffae6>] __sta_info_flush+0x86/0x190 [mac80211]
>> [82199.553338]  #4:
>> [82199.553788]  (
>> [82199.554182] &ar->conf_mutex
>> [82199.555503] ){+.+.+.}
>> [82199.556504] , at:
>> [82199.557049] [<ffffffffa12a3165>] ath10k_sta_state+0x205/0xbd0 [ath10k_core]
>> [82199.562743] 3 locks held by kworker/u8:3/2064:
>> [82199.565913]  #0:
>> [82199.566358]  (
>> [82199.566754] "%s""ath10k_wq"
>> [82199.568072] ){.+.+.+}
>> [82199.569076] , at:
>> [82199.569614] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82199.574091]  #1:
>> [82199.574538]  (
>> [82199.574934] (&(&ar->debug.nop_dwork)->work)
>> [82199.577641] ){+.+...}
>> [82199.578643] , at:
>> [82199.579179] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82199.583655]  #2:
>> [82199.584103]  (
>> [82199.584499] &ar->conf_mutex
>> [82199.585816] ){+.+.+.}
>> [82199.586821] , at:
>> [82199.587360] [<ffffffffa12acbb4>] ath10k_debug_nop_dwork+0x24/0x80 [ath10k_core]
>> [82199.593402] 4 locks held by kworker/0:2/2149:
>> [82199.596483]  #0:
>> [82199.596933]  (
>> [82199.597324] "events_freezable"
>> [82199.598903] ){.+.+..}
>> [82199.599907] , at:
>> [82199.600441] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82199.604919]  #1:
>> [82199.605367]  (
>> [82199.605765] (&local->restart_work)
>> [82199.607690] ){+.+...}
>> [82199.608694] , at:
>> [82199.609228] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82199.613706]  #2:
>> [82199.614153]  (
>> [82199.614544] rtnl_mutex
>> [82199.615429] ){+.+.+.}
>> [82199.616433] , at:
>> [82199.616970] [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82199.620668]  #3:
>> [82199.621112]  (
>> [82199.621503] &ar->conf_mutex
>> [82199.622828] ){+.+.+.}
>> [82199.623830] , at:
>> [82199.624369] [<ffffffffa12a8686>] ath10k_start+0x26/0x5d0 [ath10k_core]
>> [82199.629628] 3 locks held by kworker/3:3/2153:
>> [82199.632709]  #0:
>> [82199.633154]  (
>> [82199.633545] "events"
>> [82199.634257] ){.+.+.+}
>> [82199.635261] , at:
>> [82199.635799] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82199.640276]  #1:
>> [82199.640726]  (
>> [82199.641119] (linkwatch_work).work
>> [82199.642958] ){+.+.+.}
>> [82199.643962] , at:
>> [82199.644506] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82199.648993]  #2:
>> [82199.649438]  (
>> [82199.649834] rtnl_mutex
>> [82199.650718] ){+.+.+.}
>> [82199.651722] , at:
>> [82199.652256] [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82199.655955] 3 locks held by kworker/2:2/2984:
>> [82199.659038]  #0:
>> [82199.659483]  (
>> [82199.659879] "%s"("ipv6_addrconf")
>> [82199.661721] ){.+.+..}
>> [82199.662733] , at:
>> [82199.663270] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82199.667746]  #1:
>> [82199.668194]  (
>> [82199.668596] (addr_chk_work).work
>> [82199.670349] ){+.+...}
>> [82199.671353] , at:
>> [82199.671891] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82199.676368]  #2:
>> [82199.676821]  (
>> [82199.677214] rtnl_mutex
>> [82199.678100] ){+.+.+.}
>> [82199.679104] , at:
>> [82199.679642] [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82199.683342] 1 lock held by ip/3840:
>> [82199.685557]  #0:
>> [82199.686006]  (
>> [82199.686397] rtnl_mutex
>> [82199.687281] ){+.+.+.}
>> [82199.688287] , at:
>> [82199.688825] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>> [82199.692869] 1 lock held by ip/3843:
>> [82199.695084]  #0:
>> [82199.695531]  (
>> [82199.695932] rtnl_mutex
>> [82199.696819] ){+.+.+.}
>> [82199.697826] , at:
>> [82199.698363] [<ffffffff8186959e>] netlink_dump+0x1e/0x290
>> [82199.702407] 1 lock held by ip/3845:
>> [82199.704621]  #0:
>> [82199.705069]  (
>> [82199.705464] rtnl_mutex
>> [82199.706349] ){+.+.+.}
>> [82199.707352] , at:
>> [82199.707890] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>>
>> [82199.712145] =============================================
>>
>> [82199.716482] INFO: task kworker/3:3:2153 blocked for more than 180 seconds.
>> [82199.722089]       Tainted: G        W       4.9.0-rc6+ #9
>> [82199.726232] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
>> [82199.732798] kworker/3:3     D    0  2153      2 0x00000000
>> [82199.737044] Workqueue: events linkwatch_event
>> [82199.740140]  ffff8802114d6900 000000000000728c ffff880213dacc80 ffff8801d9490000
>> [82199.746317]  ffff88021e3998d8 ffffc9000e8f3cd0 ffffffff819322eb 0000000000000006
>> [82199.752515]  ffff880213dacc80 000000000e8f3cc8 ffff88021e3998d8 0000000000000000
>> [82199.758699] Call Trace:
>> [82199.759894]  [<ffffffff819322eb>] ? __schedule+0x2fb/0xb30
>> [82199.764108]  [<ffffffff81932b58>] schedule+0x38/0x90
>> [82199.767798]  [<ffffffff81932f20>] schedule_preempt_disabled+0x10/0x20
>> [82199.772967]  [<ffffffff81934b15>] mutex_lock_nested+0x175/0x3f0
>> [82199.777618]  [<ffffffff81841882>] ? rtnl_lock+0x12/0x20
>> [82199.781570]  [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82199.785368]  [<ffffffff81849309>] linkwatch_event+0x9/0x30
>> [82199.789602]  [<ffffffff8113a883>] process_one_work+0x1e3/0x740
>> [82199.794179]  [<ffffffff8113a804>] ? process_one_work+0x164/0x740
>> [82199.798953]  [<ffffffff8113ae26>] worker_thread+0x46/0x4f0
>> [82199.803164]  [<ffffffff8113ade0>] ? process_one_work+0x740/0x740
>> [82199.807915]  [<ffffffff8113ade0>] ? process_one_work+0x740/0x740
>> [82199.812650]  [<ffffffff8114166a>] kthread+0xfa/0x110
>> [82199.816340]  [<ffffffff81141570>] ? kthread_park+0x60/0x60
>> [82199.820554]  [<ffffffff8193a1ea>] ret_from_fork+0x2a/0x40
>> [82199.824679]
>> Showing all locks held in the system:
>> [82199.828330] 2 locks held by khungtaskd/37:
>> [82199.831152]  #0:
>> [82199.831602]  (
>> [82199.831993] rcu_read_lock
>> [82199.833136] ){......}
>> [82199.834138] , at:
>> [82199.834677] [<ffffffff811ebd5c>] watchdog+0x9c/0x600
>> [82199.838374]  #1:
>> [82199.838825]  (
>> [82199.839216] tasklist_lock
>> [82199.840360] ){.+.+..}
>> [82199.841361] , at:
>> [82199.841900] [<ffffffff8117576d>] debug_show_all_locks+0x3d/0x1a0
>> [82199.846648] 2 locks held by agetty/1149:
>> [82199.849296]  #0:
>> [82199.849746]  (
>> [82199.850142] &tty->ldisc_sem
>> [82199.851467] ){++++.+}
>> [82199.852472] , at:
>> [82199.853010] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
>> [82199.857225]  #1:
>> [82199.857674]  (
>> [82199.858068] &ldata->atomic_read_lock
>> [82199.860166] ){+.+...}
>> [82199.861167] , at:
>> [82199.861707] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
>> [82199.865581] 1 lock held by mission-control/1506:
>> [82199.868920]  #0:
>> [82199.869368]  (
>> [82199.869765] rtnl_mutex
>> [82199.870648] ){+.+.+.}
>> [82199.871649] , at:
>> [82199.872185] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>> [82199.876230] 2 locks held by bash/1691:
>> [82199.878706]  #0:
>> [82199.879151]  (
>> [82199.879547] &tty->ldisc_sem
>> [82199.880864] ){++++.+}
>> [82199.881867] , at:
>> [82199.882403] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
>> [82199.886619]  #1:
>> [82199.887064]  (
>> [82199.887460] &ldata->atomic_read_lock
>> [82199.889557] ){+.+...}
>> [82199.890560] , at:
>> [82199.891098] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
>> [82199.894974] 1 lock held by evolution-calen/1768:
>> [82199.898317]  #0:
>> [82199.898765]  (
>> [82199.899159] rtnl_mutex
>> [82199.900040] ){+.+.+.}
>> [82199.901042] , at:
>> [82199.901578] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>> [82199.905627] 2 locks held by hostapd/4100:
>> [82199.908361]  #0:
>> [82199.908810]  (
>> [82199.909203] cb_lock
>> [82199.909825] ){++++++}
>> [82199.910825] , at:
>> [82199.911361] [<ffffffff8186d494>] genl_rcv+0x14/0x40
>> [82199.914971]  #1:
>> [82199.915419]  (
>> [82199.915814] genl_mutex
>> [82199.916697] ){+.+.+.}
>> [82199.917698] , at:
>> [82199.918234] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82199.922192] 2 locks held by hostapd/4392:
>> [82199.924927]  #0:
>> [82199.925374]  (
>> [82199.925772] cb_lock
>> [82199.926393] ){++++++}
>> [82199.927398] , at:
>> [82199.927935] [<ffffffff8186d494>] genl_rcv+0x14/0x40
>> [82199.931544]  #1:
>> [82199.931994]  (
>> [82199.932385] genl_mutex
>> [82199.933268] ){+.+.+.}
>> [82199.934269] , at:
>> [82199.934806] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82199.938760] 3 locks held by wpa_supplicant/4574:
>> [82199.942100]  #0:
>> [82199.942547]  (
>> [82199.942944] cb_lock
>> [82199.943563] ){++++++}
>> [82199.944567] , at:
>> [82199.945104] [<ffffffff8186d494>] genl_rcv+0x14/0x40
>> [82199.948711]  #1:
>> [82199.949158]  (
>> [82199.949549] genl_mutex
>> [82199.950433] ){+.+.+.}
>> [82199.951437] , at:
>> [82199.951977] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82199.955932]  #2:
>> [82199.956379]  (
>> [82199.956781] rtnl_mutex
>> [82199.957664] ){+.+.+.}
>> [82199.958670] , at:
>> [82199.959204] [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82199.962903] 2 locks held by hostapd/4733:
>> [82199.965639]  #0:
>> [82199.966084]  (
>> [82199.966480] cb_lock
>> [82199.967101] ){++++++}
>> [82199.968103] , at:
>> [82199.968640] [<ffffffff8186d494>] genl_rcv+0x14/0x40
>> [82199.972246]  #1:
>> [82199.972695]  (
>> [82199.973088] genl_mutex
>> [82199.973970] ){+.+.+.}
>> [82199.974970] , at:
>> [82199.975506] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82199.979463] 2 locks held by bash/5322:
>> [82199.981939]  #0:
>> [82199.982396]  (
>> [82199.982803] &tty->ldisc_sem
>> [82199.984120] ){++++.+}
>> [82199.985123] , at:
>> [82199.985664] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
>> [82199.989879]  #1:
>> [82199.990325]  (
>> [82199.990723] &ldata->atomic_read_lock
>> [82199.992822] ){+.+...}
>> [82199.993825] , at:
>> [82199.994359] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
>> [82199.998233] 2 locks held by bash/24789:
>> [82200.000791]  #0:
>> [82200.001239]  (
>> [82200.001634] &tty->ldisc_sem
>> [82200.002963] ){++++.+}
>> [82200.003964] , at:
>> [82200.004500] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
>> [82200.008719]  #1:
>> [82200.009164]  (
>> [82200.009555] &ldata->atomic_read_lock
>> [82200.011653] ){+.+...}
>> [82200.012656] , at:
>> [82200.013193] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
>> [82200.017065] 5 locks held by kworker/u8:1/1965:
>> [82200.020233]  #0:
>> [82200.020682]  (
>> [82200.021073] "%s"wiphy_name(local->hw.wiphy)
>> [82200.023779] ){++++.+}
>> [82200.024780] , at:
>> [82200.025317] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82200.029794]  #1:
>> [82200.030241]  (
>> [82200.030642] (&sdata->work)
>> [82200.031873] ){+.+.+.}
>> [82200.032877] , at:
>> [82200.033411] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82200.037888]  #2:
>> [82200.038335]  (
>> [82200.038730] &wdev->mtx
>> [82200.039615] ){+.+.+.}
>> [82200.041265] , at:
>> [82200.041831] [<ffffffffa0e65557>] ieee80211_sta_work+0x47/0x1b50 [mac80211]
>> [82200.047435]  #3:
>> [82200.047887]  (
>> [82200.048281] &local->sta_mtx
>> [82200.049601] ){+.+.+.}
>> [82200.050605] , at:
>> [82200.051157] [<ffffffffa0dffae6>] __sta_info_flush+0x86/0x190 [mac80211]
>> [82200.056501]  #4:
>> [82200.056950]  (
>> [82200.057343] &ar->conf_mutex
>> [82200.058660] ){+.+.+.}
>> [82200.059664] , at:
>> [82200.060203] [<ffffffffa12a3165>] ath10k_sta_state+0x205/0xbd0 [ath10k_core]
>> [82200.065897] 3 locks held by kworker/u8:3/2064:
>> [82200.069064]  #0:
>> [82200.069508]  (
>> [82200.069904] "%s""ath10k_wq"
>> [82200.071222] ){.+.+.+}
>> [82200.072225] , at:
>> [82200.072765] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82200.077239]  #1:
>> [82200.077691]  (
>> [82200.078084] (&(&ar->debug.nop_dwork)->work)
>> [82200.080792] ){+.+...}
>> [82200.081793] , at:
>> [82200.082329] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82200.086806]  #2:
>> [82200.087253]  (
>> [82200.087648] &ar->conf_mutex
>> [82200.088966] ){+.+.+.}
>> [82200.089969] , at:
>> [82200.090510] [<ffffffffa12acbb4>] ath10k_debug_nop_dwork+0x24/0x80 [ath10k_core]
>> [82200.096551] 4 locks held by kworker/0:2/2149:
>> [82200.099644]  #0:
>> [82200.100089]  (
>> [82200.100485] "events_freezable"
>> [82200.102067] ){.+.+..}
>> [82200.103070] , at:
>> [82200.103604] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82200.108095]  #1:
>> [82200.108542]  (
>> [82200.108937] (&local->restart_work)
>> [82200.110863] ){+.+...}
>> [82200.111867] , at:
>> [82200.112401] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82200.116882]  #2:
>> [82200.117331]  (
>> [82200.117729] rtnl_mutex
>> [82200.118615] ){+.+.+.}
>> [82200.119619] , at:
>> [82200.120154] [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82200.123850]  #3:
>> [82200.124297]  (
>> [82200.124691] &ar->conf_mutex
>> [82200.126010] ){+.+.+.}
>> [82200.127015] , at:
>> [82200.127553] [<ffffffffa12a8686>] ath10k_start+0x26/0x5d0 [ath10k_core]
>> [82200.132814] 3 locks held by kworker/3:3/2153:
>> [82200.135894]  #0:
>> [82200.136339]  (
>> [82200.136734] "events"
>> [82200.137441] ){.+.+.+}
>> [82200.138446] , at:
>> [82200.138984] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82200.143461]  #1:
>> [82200.143911]  (
>> [82200.144304] (linkwatch_work).work
>> [82200.146143] ){+.+.+.}
>> [82200.147146] , at:
>> [82200.147686] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82200.152162]  #2:
>> [82200.152606]  (
>> [82200.153008] rtnl_mutex
>> [82200.153896] ){+.+.+.}
>> [82200.154899] , at:
>> [82200.155435] [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82200.159131] 3 locks held by kworker/2:2/2984:
>> [82200.162214]  #0:
>> [82200.162665]  (
>> [82200.163061] "%s"("ipv6_addrconf")
>> [82200.164903] ){.+.+..}
>> [82200.165907] , at:
>> [82200.166441] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82200.170916]  #1:
>> [82200.171361]  (
>> [82200.171761] (addr_chk_work).work
>> [82200.173511] ){+.+...}
>> [82200.174515] , at:
>> [82200.175053] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82200.179529]  #2:
>> [82200.179980]  (
>> [82200.180374] rtnl_mutex
>> [82200.181257] ){+.+.+.}
>> [82200.182260] , at:
>> [82200.182797] [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82200.186496] 1 lock held by ip/3840:
>> [82200.188709]  #0:
>> [82200.189156]  (
>> [82200.189547] rtnl_mutex
>> [82200.190431] ){+.+.+.}
>> [82200.191432] , at:
>> [82200.191969] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>> [82200.196010] 1 lock held by ip/3843:
>> [82200.198223]  #0:
>> [82200.198671]  (
>> [82200.199065] rtnl_mutex
>> [82200.199946] ){+.+.+.}
>> [82200.200947] , at:
>> [82200.201492] [<ffffffff8186959e>] netlink_dump+0x1e/0x290
>> [82200.205536] 1 lock held by ip/3845:
>> [82200.207751]  #0:
>> [82200.208203]  (
>> [82200.208599] rtnl_mutex
>> [82200.209480] ){+.+.+.}
>> [82200.210481] , at:
>> [82200.211018] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>>
>> [82200.215271] =============================================
>>
>> [82200.219605] INFO: task kworker/2:2:2984 blocked for more than 180 seconds.
>> [82200.225215]       Tainted: G        W       4.9.0-rc6+ #9
>> [82200.229343] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
>> [82200.235900] kworker/2:2     D    0  2984      2 0x00000000
>> [82200.240157] Workqueue: ipv6_addrconf addrconf_verify_work [ipv6]
>> [82200.244902]  ffff880210f75500 00000000000023ac ffff880214de2640 ffff880203aacc80
>> [82200.251081]  ffff88021e3198d8 ffffc9000f3c3cd0 ffffffff819322eb 0000000000000006
>> [82200.257259]  ffff880203aad4a8 000000000f3c3cc8 ffff88021e3198d8 0000000000000000
>> [82200.263451] Call Trace:
>> [82200.264630]  [<ffffffff819322eb>] ? __schedule+0x2fb/0xb30
>> [82200.268840]  [<ffffffff81932b58>] schedule+0x38/0x90
>> [82200.272532]  [<ffffffff81932f20>] schedule_preempt_disabled+0x10/0x20
>> [82200.278056]  [<ffffffff81934b15>] mutex_lock_nested+0x175/0x3f0
>> [82200.282711]  [<ffffffff81841882>] ? rtnl_lock+0x12/0x20
>> [82200.286664]  [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82200.290452]  [<ffffffffa0014539>] addrconf_verify_work+0x9/0x20 [ipv6]
>> [82200.295706]  [<ffffffff8113a883>] process_one_work+0x1e3/0x740
>> [82200.300269]  [<ffffffff8113a804>] ? process_one_work+0x164/0x740
>> [82200.305004]  [<ffffffff8113ae26>] worker_thread+0x46/0x4f0
>> [82200.309218]  [<ffffffff8113ade0>] ? process_one_work+0x740/0x740
>> [82200.313952]  [<ffffffff8113ade0>] ? process_one_work+0x740/0x740
>> [82200.318688]  [<ffffffff8114166a>] kthread+0xfa/0x110
>> [82200.322378]  [<ffffffff81141570>] ? kthread_park+0x60/0x60
>> [82200.326591]  [<ffffffff8193a1ea>] ret_from_fork+0x2a/0x40
>> [82200.330715]
>> Showing all locks held in the system:
>> [82200.334348] 2 locks held by khungtaskd/37:
>> [82200.337171]  #0:
>> [82200.337619]  (
>> [82200.338026] rcu_read_lock
>> [82200.339172] ){......}
>> [82200.340173] , at:
>> [82200.340717] [<ffffffff811ebd5c>] watchdog+0x9c/0x600
>> [82200.344414]  #1:
>> [82200.344864]  (
>> [82200.345257] tasklist_lock
>> [82200.346401] ){.+.+..}
>> [82200.347408] , at:
>> [82200.347946] [<ffffffff8117576d>] debug_show_all_locks+0x3d/0x1a0
>> [82200.352691] 2 locks held by agetty/1149:
>> [82200.355340]  #0:
>> [82200.355792]  (
>> [82200.356186] &tty->ldisc_sem
>> [82200.357505] ){++++.+}
>> [82200.358509] , at:
>> [82200.359047] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
>> [82200.363265]  #1:
>> [82200.363718]  (
>> [82200.364112] &ldata->atomic_read_lock
>> [82200.366212] ){+.+...}
>> [82200.367220] , at:
>> [82200.367757] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
>> [82200.371649] 1 lock held by mission-control/1506:
>> [82200.374991]  #0:
>> [82200.375439]  (
>> [82200.375838] rtnl_mutex
>> [82200.376722] ){+.+.+.}
>> [82200.377726] , at:
>> [82200.378260] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>> [82200.382305] 2 locks held by bash/1691:
>> [82200.384781]  #0:
>> [82200.385226]  (
>> [82200.385616] &tty->ldisc_sem
>> [82200.386936] ){++++.+}
>> [82200.387941] , at:
>> [82200.388474] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
>> [82200.392692]  #1:
>> [82200.393140]  (
>> [82200.393536] &ldata->atomic_read_lock
>> [82200.395636] ){+.+...}
>> [82200.396642] , at:
>> [82200.397175] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
>> [82200.401049] 1 lock held by evolution-calen/1768:
>> [82200.404391]  #0:
>> [82200.404843]  (
>> [82200.405239] rtnl_mutex
>> [82200.406123] ){+.+.+.}
>> [82200.407129] , at:
>> [82200.407668] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>> [82200.411719] 2 locks held by hostapd/4100:
>> [82200.414457]  #0:
>> [82200.414909]  (
>> [82200.415305] cb_lock
>> [82200.415927] ){++++++}
>> [82200.416928] , at:
>> [82200.417462] [<ffffffff8186d494>] genl_rcv+0x14/0x40
>> [82200.421072]  #1:
>> [82200.421516]  (
>> [82200.421912] genl_mutex
>> [82200.422797] ){+.+.+.}
>> [82200.423801] , at:
>> [82200.424334] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82200.428293] 2 locks held by hostapd/4392:
>> [82200.431028]  #0:
>> [82200.431476]  (
>> [82200.431876] cb_lock
>> [82200.432498] ){++++++}
>> [82200.433504] , at:
>> [82200.434042] [<ffffffff8186d494>] genl_rcv+0x14/0x40
>> [82200.437651]  #1:
>> [82200.438095]  (
>> [82200.438487] genl_mutex
>> [82200.439371] ){+.+.+.}
>> [82200.440375] , at:
>> [82200.440915] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82200.444876] 3 locks held by wpa_supplicant/4574:
>> [82200.448221]  #0:
>> [82200.448670]  (
>> [82200.449063] cb_lock
>> [82200.449688] ){++++++}
>> [82200.450694] , at:
>> [82200.451226] [<ffffffff8186d494>] genl_rcv+0x14/0x40
>> [82200.454837]  #1:
>> [82200.455282]  (
>> [82200.455688] genl_mutex
>> [82200.456570] ){+.+.+.}
>> [82200.457575] , at:
>> [82200.458113] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82200.462069]  #2:
>> [82200.462514]  (
>> [82200.462909] rtnl_mutex
>> [82200.463806] ){+.+.+.}
>> [82200.464812] , at:
>> [82200.465345] [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82200.469045] 2 locks held by hostapd/4733:
>> [82200.471785]  #0:
>> [82200.472232]  (
>> [82200.472623] cb_lock
>> [82200.473248] ){++++++}
>> [82200.474253] , at:
>> [82200.474792] [<ffffffff8186d494>] genl_rcv+0x14/0x40
>> [82200.478399]  #1:
>> [82200.478851]  (
>> [82200.479244] genl_mutex
>> [82200.480128] ){+.+.+.}
>> [82200.481135] , at:
>> [82200.481672] [<ffffffff8186d8d4>] genl_rcv_msg+0xa4/0xb0
>> [82200.485629] 2 locks held by bash/5322:
>> [82200.488100]  #0:
>> [82200.488547]  (
>> [82200.488943] &tty->ldisc_sem
>> [82200.490260] ){++++.+}
>> [82200.491265] , at:
>> [82200.491802] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
>> [82200.496019]  #1:
>> [82200.496464]  (
>> [82200.496860] &ldata->atomic_read_lock
>> [82200.498958] ){+.+...}
>> [82200.499963] , at:
>> [82200.500496] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
>> [82200.504367] 2 locks held by bash/24789:
>> [82200.506929]  #0:
>> [82200.507376]  (
>> [82200.507775] &tty->ldisc_sem
>> [82200.509094] ){++++.+}
>> [82200.510098] , at:
>> [82200.510632] [<ffffffff81938afd>] ldsem_down_read+0x2d/0x40
>> [82200.514856]  #1:
>> [82200.515302]  (
>> [82200.515701] &ldata->atomic_read_lock
>> [82200.517800] ){+.+...}
>> [82200.518804] , at:
>> [82200.519337] [<ffffffff815af1a9>] n_tty_read+0xa9/0x910
>> [82200.523229] 5 locks held by kworker/u8:1/1965:
>> [82200.526402]  #0:
>> [82200.526854]  (
>> [82200.527248] "%s"wiphy_name(local->hw.wiphy)
>> [82200.529957] ){++++.+}
>> [82200.530961] , at:
>> [82200.531496] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82200.535975]  #1:
>> [82200.536420]  (
>> [82200.536819] (&sdata->work)
>> [82200.538051] ){+.+.+.}
>> [82200.539055] , at:
>> [82200.539590] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82200.544079]  #2:
>> [82200.544526]  (
>> [82200.544947] &wdev->mtx
>> [82200.545835] ){+.+.+.}
>> [82200.546843] , at:
>> [82200.547406] [<ffffffffa0e65557>] ieee80211_sta_work+0x47/0x1b50 [mac80211]
>> [82200.553015]  #3:
>> [82200.553464]  (
>> [82200.553863] &local->sta_mtx
>> [82200.555182] ){+.+.+.}
>> [82200.556186] , at:
>> [82200.556745] [<ffffffffa0dffae6>] __sta_info_flush+0x86/0x190 [mac80211]
>> [82200.562092]  #4:
>> [82200.562537]  (
>> [82200.562933] &ar->conf_mutex
>> [82200.564249] ){+.+.+.}
>> [82200.565900] , at:
>> [82200.566441] [<ffffffffa12a3165>] ath10k_sta_state+0x205/0xbd0 [ath10k_core]
>> [82200.572139] 3 locks held by kworker/u8:3/2064:
>> [82200.575309]  #0:
>> [82200.575758]  (
>> [82200.576154] "%s""ath10k_wq"
>> [82200.577471] ){.+.+.+}
>> [82200.578474] , at:
>> [82200.579023] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82200.583500]  #1:
>> [82200.583952]  (
>> [82200.584342] (&(&ar->debug.nop_dwork)->work)
>> [82200.587049] ){+.+...}
>> [82200.588050] , at:
>> [82200.588587] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82200.593063]  #2:
>> [82200.593511]  (
>> [82200.593907] &ar->conf_mutex
>> [82200.595223] ){+.+.+.}
>> [82200.596228] , at:
>> [82200.596772] [<ffffffffa12acbb4>] ath10k_debug_nop_dwork+0x24/0x80 [ath10k_core]
>> [82200.602813] 4 locks held by kworker/0:2/2149:
>> [82200.605898]  #0:
>> [82200.606346]  (
>> [82200.606742] "events_freezable"
>> [82200.608318] ){.+.+..}
>> [82200.609325] , at:
>> [82200.609863] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82200.614339]  #1:
>> [82200.614791]  (
>> [82200.615188] (&local->restart_work)
>> [82200.617118] ){+.+...}
>> [82200.618120] , at:
>> [82200.618661] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82200.623138]  #2:
>> [82200.623583]  (
>> [82200.623978] rtnl_mutex
>> [82200.624862] ){+.+.+.}
>> [82200.625866] , at:
>> [82200.626402] [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82200.630098]  #3:
>> [82200.630543]  (
>> [82200.630938] &ar->conf_mutex
>> [82200.632255] ){+.+.+.}
>> [82200.633261] , at:
>> [82200.633804] [<ffffffffa12a8686>] ath10k_start+0x26/0x5d0 [ath10k_core]
>> [82200.639063] 3 locks held by kworker/3:3/2153:
>> [82200.642147]  #0:
>> [82200.642594]  (
>> [82200.642993] "events"
>> [82200.643709] ){.+.+.+}
>> [82200.644725] , at:
>> [82200.645261] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82200.649741]  #1:
>> [82200.650189]  (
>> [82200.650580] (linkwatch_work).work
>> [82200.652421] ){+.+.+.}
>> [82200.653423] , at:
>> [82200.653961] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82200.658440]  #2:
>> [82200.658890]  (
>> [82200.659281] rtnl_mutex
>> [82200.660166] ){+.+.+.}
>> [82200.661170] , at:
>> [82200.661707] [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82200.665405] 3 locks held by kworker/2:2/2984:
>> [82200.668486]  #0:
>> [82200.668934]  (
>> [82200.669327] "%s"("ipv6_addrconf")
>> [82200.671166] ){.+.+..}
>> [82200.672174] , at:
>> [82200.672712] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82200.677187]  #1:
>> [82200.677632]  (
>> [82200.678033] (addr_chk_work).work
>> [82200.679787] ){+.+...}
>> [82200.680791] , at:
>> [82200.681324] [<ffffffff8113a804>] process_one_work+0x164/0x740
>> [82200.685804]  #2:
>> [82200.686251]  (
>> [82200.686647] rtnl_mutex
>> [82200.687529] ){+.+.+.}
>> [82200.688533] , at:
>> [82200.689073] [<ffffffff81841882>] rtnl_lock+0x12/0x20
>> [82200.692771] 1 lock held by ip/3840:
>> [82200.694985]  #0:
>> [82200.695433]  (
>> [82200.695834] rtnl_mutex
>> [82200.696720] ){+.+.+.}
>> [82200.697725] , at:
>> [82200.698258] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>> [82200.702304] 1 lock held by ip/3843:
>> [82200.704518]  #0:
>> [82200.704970]  (
>> [82200.705366] rtnl_mutex
>> [82200.706248] ){+.+.+.}
>> [82200.707251] , at:
>> [82200.707790] [<ffffffff8186959e>] netlink_dump+0x1e/0x290
>> [82200.711830] 1 lock held by ip/3845:
>> [82200.714044]  #0:
>> [82200.714489]  (
>> [82200.714885] rtnl_mutex
>> [82200.715769] ){+.+.+.}
>> [82200.716773] , at:
>> [82200.717307] [<ffffffff81842df6>] rtnetlink_rcv+0x16/0x30
>>
>> [82200.721567] =============================================
>>
>
> regards,
> shafi
>

-- 
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc  http://www.candelatech.com

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