* WARNING from net/wireless/mlme.c
@ 2013-03-05 4:13 Larry Finger
2013-03-05 19:32 ` Johannes Berg
0 siblings, 1 reply; 3+ messages in thread
From: Larry Finger @ 2013-03-05 4:13 UTC (permalink / raw)
To: Johannes Berg; +Cc: linux-wireless, John W Linville
With 3.9-rc1 from wireless-testing, I get a warning from the line
if (WARN(!wdev->current_bss, "sme_state=%d\n", wdev->sme_state))
[ 4250.226882] ------------[ cut here ]------------
[ 4250.226929] WARNING: at net/wireless/mlme.c:517
cfg80211_mlme_disassoc+0x192/0x3a0 [cfg80211]()
[ 4250.226933] Hardware name: HP Pavilion dv2700 Notebook PC
[ 4250.226936] sme_state=2
[ 4250.226938] Modules linked in: fuse af_packet rfcomm bnep rtl8723ae b43
rtlwifi mac80211 cfg80211 btusb bluetooth ipv6 snd_hda_codec_conexant
snd_hda_intel snd_hda_codec snd_pcm snd_seq kvm_amd bcma rng_core kvm snd_timer
ssb mmc_core snd_seq_device snd sg pcmcia sr_mod cdrom k8temp soundcore
snd_page_alloc pcmcia_core i2c_nforce2 hwmon forcedeth i2c_core serio_raw joydev
video battery ac wmi button autofs4 ext4 mbcache jbd2 crc16 thermal processor
scsi_dh_alua scsi_dh_hp_sw scsi_dh_rdac scsi_dh_emc scsi_dh ata_generic
pata_acpi pata_amd
[ 4250.227022] Pid: 3018, comm: wpa_supplicant Tainted: G W
3.9.0-rc1-wl+ #122
[ 4250.227025] Call Trace:
[ 4250.227047] [<ffffffffa0545200>] ? cfg80211_mlme_disassoc+0x180/0x3a0 [cfg80211]
[ 4250.227055] [<ffffffff810408fa>] warn_slowpath_common+0x7a/0xc0
[ 4250.227060] [<ffffffff810409e1>] warn_slowpath_fmt+0x41/0x50
[ 4250.227082] [<ffffffffa0545212>] cfg80211_mlme_disassoc+0x192/0x3a0 [cfg80211]
[ 4250.227101] [<ffffffffa053a87c>] ? nl80211_pre_doit+0x2ec/0x3e0 [cfg80211]
[ 4250.227120] [<ffffffffa052d542>] nl80211_disassociate+0xb2/0xf0 [cfg80211]
[ 4250.227131] [<ffffffff813e1dd4>] genl_rcv_msg+0x274/0x2b0
[ 4250.227136] [<ffffffff813e1b60>] ? genl_rcv+0x30/0x30
[ 4250.227141] [<ffffffff813e1069>] netlink_rcv_skb+0xa9/0xc0
[ 4250.227146] [<ffffffff813e1b50>] genl_rcv+0x20/0x30
[ 4250.227150] [<ffffffff813e09bb>] netlink_unicast+0x19b/0x220
[ 4250.227155] [<ffffffff813e0e26>] netlink_sendmsg+0x336/0x3b0
[ 4250.227162] [<ffffffff8139b397>] sock_sendmsg+0x87/0xa0
[ 4250.227168] [<ffffffff81128317>] ? might_fault+0x57/0xb0
[ 4250.227175] [<ffffffff8139b84c>] __sys_sendmsg+0x37c/0x390
[ 4250.227180] [<ffffffff81197f37>] ? fsnotify+0x87/0x5f0
[ 4250.227185] [<ffffffff8119814c>] ? fsnotify+0x29c/0x5f0
[ 4250.227188] [<ffffffff81197f37>] ? fsnotify+0x87/0x5f0
[ 4250.227195] [<ffffffff8116ff6a>] ? fget_light+0x3da/0x4d0
[ 4250.227200] [<ffffffff8139e9e4>] sys_sendmsg+0x44/0x80
[ 4250.227207] [<ffffffff8146cfa9>] system_call_fastpath+0x16/0x1b
[ 4250.227211] ---[ end trace 7082b359b3f3e7d2 ]---
Larry
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: WARNING from net/wireless/mlme.c
2013-03-05 4:13 WARNING from net/wireless/mlme.c Larry Finger
@ 2013-03-05 19:32 ` Johannes Berg
2013-03-05 19:43 ` Larry Finger
0 siblings, 1 reply; 3+ messages in thread
From: Johannes Berg @ 2013-03-05 19:32 UTC (permalink / raw)
To: Larry Finger; +Cc: linux-wireless, John W Linville
Hi Larry,
> With 3.9-rc1 from wireless-testing, I get a warning from the line
> if (WARN(!wdev->current_bss, "sme_state=%d\n", wdev->sme_state))
>
> [ 4250.226882] ------------[ cut here ]------------
> [ 4250.226929] WARNING: at net/wireless/mlme.c:517
> cfg80211_mlme_disassoc+0x192/0x3a0 [cfg80211]()
> [ 4250.226933] Hardware name: HP Pavilion dv2700 Notebook PC
> [ 4250.226936] sme_state=2
Heh, adding the sme_state=2 there was stupid of me ... there's an if
right in front. Oh well.
Anyway, can you reproduce this? I looked at the code for the umpteenth
time and can't really find it. Capturing cfg80211 tracing might be
helpful.
johannes
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: WARNING from net/wireless/mlme.c
2013-03-05 19:32 ` Johannes Berg
@ 2013-03-05 19:43 ` Larry Finger
0 siblings, 0 replies; 3+ messages in thread
From: Larry Finger @ 2013-03-05 19:43 UTC (permalink / raw)
To: Johannes Berg; +Cc: linux-wireless, John W Linville
On 03/05/2013 01:32 PM, Johannes Berg wrote:
> Hi Larry,
>
>> With 3.9-rc1 from wireless-testing, I get a warning from the line
>> if (WARN(!wdev->current_bss, "sme_state=%d\n", wdev->sme_state))
>>
>> [ 4250.226882] ------------[ cut here ]------------
>> [ 4250.226929] WARNING: at net/wireless/mlme.c:517
>> cfg80211_mlme_disassoc+0x192/0x3a0 [cfg80211]()
>> [ 4250.226933] Hardware name: HP Pavilion dv2700 Notebook PC
>> [ 4250.226936] sme_state=2
>
> Heh, adding the sme_state=2 there was stupid of me ... there's an if
> right in front. Oh well.
>
> Anyway, can you reproduce this? I looked at the code for the umpteenth
> time and can't really find it. Capturing cfg80211 tracing might be
> helpful.
I'll turn on cfg80211 debugging and let you know when it happens again.
Larry
^ permalink raw reply [flat|nested] 3+ messages in thread
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