* 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
^ permalink raw reply
* ath10k: Fix soft lockup during firmware crash/hw-restart
From: Mohammed Shafi Shajakhan @ 2016-11-29 14:46 UTC (permalink / raw)
To: ath10k; +Cc: mohammed, linux-wireless, Mohammed Shafi Shajakhan
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:
--
1.9.1
^ permalink raw reply related
* Re: [PATCH] mac80211: fix Tx BA session stuck issue during sw scanning
From: Arend Van Spriel @ 2016-11-29 13:38 UTC (permalink / raw)
To: Johannes Berg, Chris Chiu, linux-wireless; +Cc: linux
In-Reply-To: <1480424369.10012.6.camel@sipsolutions.net>
On 29-11-2016 13:59, Johannes Berg wrote:
> On Wed, 2016-11-23 at 15:59 +0800, Chris Chiu wrote:
>> ieee80211_iface_work() will check if sw scanning is in progress
>> before handling block ack session. In our case, the RTL8821AE
>> operate in station mode, when tx session expired, DELBA packet
>> stuck during sw scanning and so do other data packets.
>>
>> ieee80211_scan_state_decision() will take lots of time in
>> SCAN_SUSPEND/SCAN_RESUME state due to !tx_empty or bad_latency.
>> Then the sw scanning mostly take > 20 seconds to finish or even
>> worse in our case RTL8821AE have 37 channels for 2G+5G to scan
>> and tx stalls ~300 seconds. AP side still thinks the connection
>> is alive because it still receives the QoS NULL packet from STA.
>> So the link state will never change but actually no data tx/rx
>> during this long time.
>>
>> This commit tries to send out packet in SCAN_SUSPEND state so the
>> sw scanning can complete more efficiently and less affect on Block
>> Ack session handling. Verified on RTL8821AE for > 30000 pings and
>> no Tx BA session stuck observed.
>
> The premise seems fairly reasonable, although I'm a little worried that
> if so much new traffic is coming in we never finish the scan suspend?
> Actually, the queues are still stopped, so it's only management frames
> that can come in, so that should be ok?
So are pings a good way to verify block-ack session handling. How often
was a scan issued within those 30000 pings or was that left to
wpa_supplicant/network-manager/whatever?
Regards,
Arend
>> + test_and_clear_bit(SCAN_SUSPEND_SCANNING, &local->scanning);
>>
>
> That makes no sense, you're not checking the return value, just clear
> the bit without test.
>
>> @@ -844,6 +846,8 @@ static void ieee80211_scan_state_suspend(struct
>> ieee80211_local *local,
>> /* disable PS */
>> ieee80211_offchannel_return(local);
>>
>> + __set_bit(SCAN_SUSPEND_SCANNING, &local->scanning);
>
> Why are you using the non-atomic version here, vs. the atomic one
> above?
>
> johannes
>
^ permalink raw reply
* Re: [PATCH] mac80211: fix Tx BA session stuck issue during sw scanning
From: Johannes Berg @ 2016-11-29 12:59 UTC (permalink / raw)
To: Chris Chiu, linux-wireless; +Cc: linux
In-Reply-To: <1479887968-17473-1-git-send-email-chiu@endlessm.com>
On Wed, 2016-11-23 at 15:59 +0800, Chris Chiu wrote:
> ieee80211_iface_work() will check if sw scanning is in progress
> before handling block ack session. In our case, the RTL8821AE
> operate in station mode, when tx session expired, DELBA packet
> stuck during sw scanning and so do other data packets.
>
> ieee80211_scan_state_decision() will take lots of time in
> SCAN_SUSPEND/SCAN_RESUME state due to !tx_empty or bad_latency.
> Then the sw scanning mostly take > 20 seconds to finish or even
> worse in our case RTL8821AE have 37 channels for 2G+5G to scan
> and tx stalls ~300 seconds. AP side still thinks the connection
> is alive because it still receives the QoS NULL packet from STA.
> So the link state will never change but actually no data tx/rx
> during this long time.
>
> This commit tries to send out packet in SCAN_SUSPEND state so the
> sw scanning can complete more efficiently and less affect on Block
> Ack session handling. Verified on RTL8821AE for > 30000 pings and
> no Tx BA session stuck observed.
The premise seems fairly reasonable, although I'm a little worried that
if so much new traffic is coming in we never finish the scan suspend?
Actually, the queues are still stopped, so it's only management frames
that can come in, so that should be ok?
> + test_and_clear_bit(SCAN_SUSPEND_SCANNING, &local->scanning);
>
That makes no sense, you're not checking the return value, just clear
the bit without test.
> @@ -844,6 +846,8 @@ static void ieee80211_scan_state_suspend(struct
> ieee80211_local *local,
> /* disable PS */
> ieee80211_offchannel_return(local);
>
> + __set_bit(SCAN_SUSPEND_SCANNING, &local->scanning);
Why are you using the non-atomic version here, vs. the atomic one
above?
johannes
^ permalink raw reply
* Re: [PATCH 00/12] brcmfmac: scheduled scan cleanup and chip support
From: Rafał Miłecki @ 2016-11-29 12:30 UTC (permalink / raw)
To: Arend Van Spriel; +Cc: Kalle Valo, linux-wireless
In-Reply-To: <a763eacb-edd9-e551-dad7-456fac580f14@broadcom.com>
On 29 November 2016 at 10:58, Arend Van Spriel
<arend.vanspriel@broadcom.com> wrote:
> On 29-11-2016 8:37, Rafa=C5=82 Mi=C5=82ecki wrote:
>> On 23 November 2016 at 11:25, Arend van Spriel
>> <arend.vanspriel@broadcom.com> wrote:
>>> This patch series contains:
>>> * cleanup of scheduled scan code.
>>> * fix handling schedules scan results for newer chips.
>>> * support for bcm43341 chipset with different chip id.
>>> * support rev6 of PCIe device interface.
>>>
>>> The series is intended for 4.10 and applies to the master branch
>>> of the wireless-drivers-next repository.
>>
>> Tested with BCM43602 on SR400ac router, it still initializes fine, I
>> can create multiple AP interfaces and use them.
>
> Thanks, Rafa=C5=82
>
> Extra testing for the PCIe rev6 support is always appreciated. Although
> I am not sure what rev your 43602 device has. At least we know it is not
> broken ;-)
I guess it's not rev6, my testing was just against possible regressions :)
--=20
Rafa=C5=82
^ permalink raw reply
* Re: [PATCH 03/12] brcmfmac: move pno helper functions in separate source file
From: Rafał Miłecki @ 2016-11-29 12:29 UTC (permalink / raw)
To: Arend Van Spriel; +Cc: Johannes Berg, Kalle Valo, linux-wireless
In-Reply-To: <f0329a78-abdc-020a-5362-7b3e6b772593@broadcom.com>
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).
--=20
Rafa=C5=82
^ permalink raw reply
* Re: [RFC] qtn: add FullMAC firmware for Quantenna QSR10G wifi device
From: IgorMitsyanko @ 2016-11-29 10:22 UTC (permalink / raw)
To: Arend Van Spriel, Oleksij Rempel, Kyle McMartin
Cc: Ben Hutchings, Kyle McMartin, Johannes Berg, linux-wireless,
btherthala, hwang, smaksimenko, dlebed, Igor Mitsyanko,
Kamlesh Rath, Sergey Matyukevich, Avinash Patil
In-Reply-To: <5370cbc3-638f-8346-e8ae-ac247a03fb4f@broadcom.com>
On 11/29/2016 12:34 PM, Arend Van Spriel wrote:
>
> On 29-11-2016 10:10, IgorMitsyanko wrote:
>> On 11/29/2016 06:49 AM, Oleksij Rempel wrote:
>>> Am 28.11.2016 um 20:01 schrieb IgorMitsyanko:
>>>> On 11/28/2016 08:33 PM, Oleksij Rempel wrote:
>>>>> Am 28.11.2016 um 18:10 schrieb Oleksij Rempel:
> [...]
>
>>>> Oleksij, yes, that's correct, it includes entire Linux environment; the
>>>> reasoning is that it allows to hide all WiFi-related logic inside device
>>>> itself, and emulate simple Ethernet device for external system
>>>> (therefore, freeing external system resources).
>>>>
>>>> This approach was working really well for us until recently, but now
>>>> that company is expanding, we want to have more flexible and standardize
>>>> interface available for external system to manage wireless connection,
>>>> and FullMAC driver seems to be the best solution here.
>>> you mean, this driver will not use mac80211 framework provided by kernel?
>> Yes, this driver is FullMAC - converting Quantenna drivers codebase to
>> mac80211 framework will require significant effort from developers and
>> QA, but I think in the future it will have to be done anyway.
> Why? The linux wireless subsystem supports both models, ie.
> cfg80211-based drivers and mac80211-based drivers, so there is no
> technical reason for making the effort. There are clearly benefits in
> using a generic and freely available 802.11 stack like mac80211.
There is definitely a benefit if starting a new product development,
however with existing products its not that simple due to highly
conservative approach:
- for many years development was based on old MadWiFi driver and older
kernel. Over time it was modified and rewritten to fit internal needs,
and integrating it into mac80211 (to preserve the same behavior) would
require significant effort.
- it takes a lot of resources to validate that system works as expected.
Quantenna itself is doing QA testing and certification + engineering has
to be sure there is no performance/feature regression + end product
manufacturers has to do their own QA. Each change means a lot of time
and money spend on validation, new potential bugs to fix etc
With FullMAC driver on the other hand, device firmware is a "black box"
for external system and firmware changes can be kept to a minimum.
I'd like to clarify that I think that moving to mac80211 is inevitable
in any case and will happen in the future.
>
> Regards,
> Arend
^ permalink raw reply
* Re: [PATCH 00/12] brcmfmac: scheduled scan cleanup and chip support
From: Arend Van Spriel @ 2016-11-29 9:58 UTC (permalink / raw)
To: Rafał Miłecki; +Cc: Kalle Valo, linux-wireless
In-Reply-To: <CACna6rxszuTY3g=brCkWmwX7mT0-ptjpQMG+YTrPzfoc=dJvcA@mail.gmail.com>
On 29-11-2016 8:37, Rafał Miłecki wrote:
> On 23 November 2016 at 11:25, Arend van Spriel
> <arend.vanspriel@broadcom.com> wrote:
>> This patch series contains:
>> * cleanup of scheduled scan code.
>> * fix handling schedules scan results for newer chips.
>> * support for bcm43341 chipset with different chip id.
>> * support rev6 of PCIe device interface.
>>
>> The series is intended for 4.10 and applies to the master branch
>> of the wireless-drivers-next repository.
>
> Tested with BCM43602 on SR400ac router, it still initializes fine, I
> can create multiple AP interfaces and use them.
Thanks, Rafał
Extra testing for the PCIe rev6 support is always appreciated. Although
I am not sure what rev your 43602 device has. At least we know it is not
broken ;-)
Regards,
Arend
^ permalink raw reply
* Re: [PATCH] ath9k_htc: don't use HZ for usb msg timeouts
From: Anthony Romano @ 2016-11-29 9:45 UTC (permalink / raw)
To: Oleksij Rempel; +Cc: linux-wireless, ath9k-devel
In-Reply-To: <a433d14f-d762-fc53-ba7a-da616ac670ca@gmx.net>
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.
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.romano@coreos.com>
>> ---
>> drivers/net/wireless/ath/ath9k/hif_usb.c | 9 +++++----
>> drivers/net/wireless/ath/ath9k/hif_usb.h | 2 ++
>> 2 files changed, 7 insertions(+), 4 deletions(-)
>>
>> diff --git a/drivers/net/wireless/ath/ath9k/hif_usb.c b/drivers/net/wireless/ath/ath9k/hif_usb.c
>> index e1c338cb9cb5..de2d212f39ec 100644
>> --- a/drivers/net/wireless/ath/ath9k/hif_usb.c
>> +++ b/drivers/net/wireless/ath/ath9k/hif_usb.c
>> @@ -997,7 +997,8 @@ static int ath9k_hif_usb_download_fw(struct hif_device_usb *hif_dev)
>> err = usb_control_msg(hif_dev->udev,
>> usb_sndctrlpipe(hif_dev->udev, 0),
>> FIRMWARE_DOWNLOAD, 0x40 | USB_DIR_OUT,
>> - addr >> 8, 0, buf, transfer, HZ);
>> + addr >> 8, 0, buf, transfer,
>> + USB_MSG_TIMEOUT);
>> if (err < 0) {
>> kfree(buf);
>> return err;
>> @@ -1020,7 +1021,7 @@ static int ath9k_hif_usb_download_fw(struct hif_device_usb *hif_dev)
>> err = usb_control_msg(hif_dev->udev, usb_sndctrlpipe(hif_dev->udev, 0),
>> FIRMWARE_DOWNLOAD_COMP,
>> 0x40 | USB_DIR_OUT,
>> - firm_offset >> 8, 0, NULL, 0, HZ);
>> + firm_offset >> 8, 0, NULL, 0, USB_MSG_TIMEOUT);
>> if (err)
>> return -EIO;
>>
>> @@ -1249,7 +1250,7 @@ static int send_eject_command(struct usb_interface *interface)
>>
>> dev_info(&udev->dev, "Ejecting storage device...\n");
>> r = usb_bulk_msg(udev, usb_sndbulkpipe(udev, bulk_out_ep),
>> - cmd, 31, NULL, 2000);
>> + cmd, 31, NULL, 2 * USB_MSG_TIMEOUT);
>> kfree(cmd);
>> if (r)
>> return r;
>> @@ -1314,7 +1315,7 @@ static void ath9k_hif_usb_reboot(struct usb_device *udev)
>> return;
>>
>> ret = usb_interrupt_msg(udev, usb_sndintpipe(udev, USB_REG_OUT_PIPE),
>> - buf, 4, NULL, HZ);
>> + buf, 4, NULL, USB_MSG_TIMEOUT);
>> if (ret)
>> dev_err(&udev->dev, "ath9k_htc: USB reboot failed\n");
>>
>> diff --git a/drivers/net/wireless/ath/ath9k/hif_usb.h b/drivers/net/wireless/ath/ath9k/hif_usb.h
>> index 7c2ef7ecd98b..7846916aa01d 100644
>> --- a/drivers/net/wireless/ath/ath9k/hif_usb.h
>> +++ b/drivers/net/wireless/ath/ath9k/hif_usb.h
>> @@ -71,6 +71,8 @@ extern int htc_use_dev_fw;
>> #define USB_REG_IN_PIPE 3
>> #define USB_REG_OUT_PIPE 4
>>
>> +#define USB_MSG_TIMEOUT 1000 /* (ms) */
>> +
>> #define HIF_USB_MAX_RXPIPES 2
>> #define HIF_USB_MAX_TXPIPES 4
>>
>>
>
>
^ permalink raw reply
* Re: [RFC] qtn: add FullMAC firmware for Quantenna QSR10G wifi device
From: Arend Van Spriel @ 2016-11-29 9:34 UTC (permalink / raw)
To: IgorMitsyanko, Oleksij Rempel, Kyle McMartin
Cc: Ben Hutchings, Kyle McMartin, Johannes Berg, linux-wireless,
btherthala, hwang, smaksimenko, dlebed, Igor Mitsyanko,
Kamlesh Rath, Sergey Matyukevich, Avinash Patil
In-Reply-To: <12af5088-f026-380a-333d-2a2bb2b7a248@quantenna.com>
On 29-11-2016 10:10, IgorMitsyanko wrote:
> On 11/29/2016 06:49 AM, Oleksij Rempel wrote:
>> Am 28.11.2016 um 20:01 schrieb IgorMitsyanko:
>>> On 11/28/2016 08:33 PM, Oleksij Rempel wrote:
>>>> Am 28.11.2016 um 18:10 schrieb Oleksij Rempel:
[...]
>>> Oleksij, yes, that's correct, it includes entire Linux environment; the
>>> reasoning is that it allows to hide all WiFi-related logic inside device
>>> itself, and emulate simple Ethernet device for external system
>>> (therefore, freeing external system resources).
>>>
>>> This approach was working really well for us until recently, but now
>>> that company is expanding, we want to have more flexible and standardize
>>> interface available for external system to manage wireless connection,
>>> and FullMAC driver seems to be the best solution here.
>> you mean, this driver will not use mac80211 framework provided by kernel?
>
> Yes, this driver is FullMAC - converting Quantenna drivers codebase to
> mac80211 framework will require significant effort from developers and
> QA, but I think in the future it will have to be done anyway.
Why? The linux wireless subsystem supports both models, ie.
cfg80211-based drivers and mac80211-based drivers, so there is no
technical reason for making the effort. There are clearly benefits in
using a generic and freely available 802.11 stack like mac80211.
Regards,
Arend
^ permalink raw reply
* Re: [PATCH 03/12] brcmfmac: move pno helper functions in separate source file
From: Arend Van Spriel @ 2016-11-29 9:23 UTC (permalink / raw)
To: Johannes Berg, Rafał Miłecki; +Cc: Kalle Valo, linux-wireless
In-Reply-To: <1480406267.10012.0.camel@sipsolutions.net>
On 29-11-2016 8:57, Johannes Berg wrote:
> On Tue, 2016-11-29 at 08:08 +0100, Rafał Miłecki 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.
Regards,
Arend
^ permalink raw reply
* Re: [RFC] qtn: add FullMAC firmware for Quantenna QSR10G wifi device
From: IgorMitsyanko @ 2016-11-29 9:10 UTC (permalink / raw)
To: Oleksij Rempel, Kyle McMartin
Cc: Ben Hutchings, Kyle McMartin, Johannes Berg, linux-wireless,
btherthala, hwang, smaksimenko, dlebed, Igor Mitsyanko,
Kamlesh Rath, Sergey Matyukevich, Avinash Patil
In-Reply-To: <ad7935a1-735b-706a-9ac1-cd5076d8f307@rempel-privat.de>
On 11/29/2016 06:49 AM, Oleksij Rempel wrote:
> Am 28.11.2016 um 20:01 schrieb IgorMitsyanko:
>> On 11/28/2016 08:33 PM, Oleksij Rempel wrote:
>>> Am 28.11.2016 um 18:10 schrieb Oleksij Rempel:
>>>> Am 28.11.2016 um 17:34 schrieb Kyle McMartin:
>>>>> On Tue, Nov 22, 2016 at 9:44 AM, IgorMitsyanko
>>>>> <igor.mitsyanko.os@quantenna.com> wrote:
>>>>>> Hi Ben, Kyle,
>>>>>> could you please share what is the position of linux-firmware
>>>>>> regarding
>>>>>> firmware binaries that include GPL components? Does it require
>>>>>> entire GPL
>>>>>> components codebase be present in linux-firmware tree, or maybe
>>>>>> having this
>>>>>> clause in license file is enough:
>>>>>> +Open Source Software. The Software may include components that are
>>>>>> licensed
>>>>>> +pursuant to open source software (“Open Source Components”).
>>>>>> Information
>>>>>> +regarding the Open Source Components included with the Software is
>>>>>> available
>>>>>> +upon request to oslegal@quantenna.com. To the extent such Open Source
>>>>>> +Components are required to be licensed to you under the terms of a
>>>>>> separate
>>>>>> +license (such as an open source license) then such other terms
>>>>>> shall apply,
>>>>>> and
>>>>>> +nothing herein shall be deemed or interpreted to limit any rights
>>>>>> you may
>>>>>> have
>>>>>> +under any such applicable license.
>>>>>>
>>>>>> From technical perspective, size of the codebase used to build
>>>>>> Quantenna
>>>>>> firmware is a few hundred MBs, it seems too much to include into
>>>>>> linux-firmware tree.
>>>>>>
>>>>> I don't have strong feelings one way or another. I'd prefer not having
>>>>> several hundred
>>>>> MB of source that's unlikely to change included in the linux-firmware
>>>>> git tree. I'm also not
>>>>> a lawyer, so I can't help you decide what would satisfy the
>>>>> distribution clause of the GPLv2.
>>>>> We already have one GPL firmware (carl9170fw) which includes the
>>>>> source, but just references
>>>>> a seperate toolchain for downloading, so it's only approximately 1MB
>>>>> in size in the tree.
>>>>>
>>>>> Is your firmware source really that large, or is it just including the
>>>>> entire build toolchain with it?
>>>>>
>>>>> regards,
>>>>> --Kyle
>>>> We also have open BSD licensed open-ath9k-htc-firmware. Which is locate
>>>> out of source too.
>>>> https://github.com/qca/open-ath9k-htc-firmware
>>>> and here is location of carl firmware:
>>>> https://github.com/chunkeey/carl9170fw
>>>>
>>>> So, what is actual problem with Quantenna QSR10G FW?
>>>> I would be really interesting to take a look on it. Is it somewhere
>>>> available? Are there some devices to get hand on?
>>> After seeing specs of this device i have strong feeling that "some open
>>> source part" is actual linux kernel.
>>>
>>>
>> Oleksij, yes, that's correct, it includes entire Linux environment; the
>> reasoning is that it allows to hide all WiFi-related logic inside device
>> itself, and emulate simple Ethernet device for external system
>> (therefore, freeing external system resources).
>>
>> This approach was working really well for us until recently, but now
>> that company is expanding, we want to have more flexible and standardize
>> interface available for external system to manage wireless connection,
>> and FullMAC driver seems to be the best solution here.
> you mean, this driver will not use mac80211 framework provided by kernel?
Yes, this driver is FullMAC - converting Quantenna drivers codebase to
mac80211 framework will require significant effort from developers and
QA, but I think in the future it will have to be done anyway.
>
>> For the availability of FW sources, QSR10G-based products are still
>> under development at this moment (not in the market yet), but many
>> products based on previous generation chipset QSR1000 are available. For
>> example, Asus has a retail design with QSR1000 chipset, and has all GPL
>> sourcecode available on their website (including what Quantenna has
>> provided):
>>
>> http://www.asus.com/Networking/RTAC87U/HelpDesk_Download/
>> Quantenna provided code is in, for example, "GPL of ASUS RT-AC87U for
>> firmware 3.0.0.4.378.7410" archive.
>> It's basically the same as used for QSR10G.
> Will Quantenna provide documentation for at least old chipsats? Playing
> fair with OSS developer community has some advantages :)
Will forward the request.
I agree with this, though this is more about protecting from other wifi
vendors on a highly competitive market rather than hiding something from
community) QSR1000 chipset that I mentioned is actually "current"
chipset while QSR10G can be considered future chipset.
>
>
^ permalink raw reply
* Re: [PATCH 03/12] brcmfmac: move pno helper functions in separate source file
From: Johannes Berg @ 2016-11-29 7:57 UTC (permalink / raw)
To: Rafał Miłecki, Arend van Spriel; +Cc: Kalle Valo, linux-wireless
In-Reply-To: <CACna6rwSDT1UeuexMpNhVMxKHWpZGdzDg7C1b5wVOhXzO3o=MA@mail.gmail.com>
On Tue, 2016-11-29 at 08:08 +0100, Rafał Miłecki 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?)
johannes
^ permalink raw reply
* Re: [PATCH 00/12] brcmfmac: scheduled scan cleanup and chip support
From: Rafał Miłecki @ 2016-11-29 7:37 UTC (permalink / raw)
To: Arend van Spriel; +Cc: Kalle Valo, linux-wireless
In-Reply-To: <1479896731-5091-1-git-send-email-arend.vanspriel@broadcom.com>
On 23 November 2016 at 11:25, Arend van Spriel
<arend.vanspriel@broadcom.com> wrote:
> This patch series contains:
> * cleanup of scheduled scan code.
> * fix handling schedules scan results for newer chips.
> * support for bcm43341 chipset with different chip id.
> * support rev6 of PCIe device interface.
>
> The series is intended for 4.10 and applies to the master branch
> of the wireless-drivers-next repository.
Tested with BCM43602 on SR400ac router, it still initializes fine, I
can create multiple AP interfaces and use them.
^ permalink raw reply
* Re: Deadlock in hacked 4.9.0-rc6+ kernel.
From: Mohammed Shafi Shajakhan @ 2016-11-29 7:34 UTC (permalink / raw)
To: Ben Greear; +Cc: linux-wireless@vger.kernel.org
In-Reply-To: <f685b46e-cad9-2f03-0c59-9e9631ab0500@candelatech.com>
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.
>
> 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
^ permalink raw reply
* Re: [PATCH 03/12] brcmfmac: move pno helper functions in separate source file
From: Rafał Miłecki @ 2016-11-29 7:08 UTC (permalink / raw)
To: Arend van Spriel; +Cc: Kalle Valo, linux-wireless
In-Reply-To: <1479896731-5091-4-git-send-email-arend.vanspriel@broadcom.com>
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.
^ permalink raw reply
* Re: [PATCH] rtl8xxxu: Fix fail to reconnect to AP
From: Jes Sorensen @ 2016-11-29 4:02 UTC (permalink / raw)
To: Barry Day; +Cc: linux-wireless, Kalle Valo
In-Reply-To: <20161129030137.GA7917@box64.home.org>
Barry Day <briselec@gmail.com> writes:
> Removed the report_connect functions as the h2c commands used are
> not required for a soft-mac driver and they prevent reconnecting to an
> AP for a couple of the chipsets.
>
> Signed-off-by: Barry Day <briselec@gmail.com>
> ---
> rtl8xxxu.h | 6 ------
> rtl8xxxu_8192c.c | 1 -
> rtl8xxxu_8192e.c | 1 -
> rtl8xxxu_8723a.c | 1 -
> rtl8xxxu_8723b.c | 1 -
> rtl8xxxu_core.c | 36 ------------------------------------
> 6 files changed, 46 deletions(-)
Hi Barry,
Does removing the h2c command on the 8723bu and 8192eu make the
reconnect process work properly?
Do you have any documentation justifying why this isn't needed on gen1
parts? I am rather cautious of just removing them, but we may remove the
call for gen2, at least until we understand better how that firmware
command really works.
Cheers,
Jes
> diff --git a/rtl8xxxu.h b/rtl8xxxu.h
> index df551b2..3b1f62d 100644
> --- a/rtl8xxxu.h
> +++ b/rtl8xxxu.h
> @@ -1335,8 +1335,6 @@ struct rtl8xxxu_fileops {
> bool ht40);
> void (*update_rate_mask) (struct rtl8xxxu_priv *priv,
> u32 ramask, int sgi);
> - void (*report_connect) (struct rtl8xxxu_priv *priv,
> - u8 macid, bool connect);
> void (*fill_txdesc) (struct ieee80211_hw *hw, struct ieee80211_hdr *hdr,
> struct ieee80211_tx_info *tx_info,
> struct rtl8xxxu_txdesc32 *tx_desc, bool sgi,
> @@ -1422,10 +1420,6 @@ void rtl8xxxu_update_rate_mask(struct rtl8xxxu_priv *priv,
> u32 ramask, int sgi);
> void rtl8xxxu_gen2_update_rate_mask(struct rtl8xxxu_priv *priv,
> u32 ramask, int sgi);
> -void rtl8xxxu_gen1_report_connect(struct rtl8xxxu_priv *priv,
> - u8 macid, bool connect);
> -void rtl8xxxu_gen2_report_connect(struct rtl8xxxu_priv *priv,
> - u8 macid, bool connect);
> void rtl8xxxu_gen1_init_aggregation(struct rtl8xxxu_priv *priv);
> void rtl8xxxu_gen1_enable_rf(struct rtl8xxxu_priv *priv);
> void rtl8xxxu_gen1_disable_rf(struct rtl8xxxu_priv *priv);
> diff --git a/rtl8xxxu_8192c.c b/rtl8xxxu_8192c.c
> index f9e2050..d5c37e0 100644
> --- a/rtl8xxxu_8192c.c
> +++ b/rtl8xxxu_8192c.c
> @@ -566,7 +566,6 @@ struct rtl8xxxu_fileops rtl8192cu_fops = {
> .usb_quirks = rtl8xxxu_gen1_usb_quirks,
> .set_tx_power = rtl8xxxu_gen1_set_tx_power,
> .update_rate_mask = rtl8xxxu_update_rate_mask,
> - .report_connect = rtl8xxxu_gen1_report_connect,
> .fill_txdesc = rtl8xxxu_fill_txdesc_v1,
> .writeN_block_size = 128,
> .rx_agg_buf_size = 16000,
> diff --git a/rtl8xxxu_8192e.c b/rtl8xxxu_8192e.c
> index a1178c5..401aac4 100644
> --- a/rtl8xxxu_8192e.c
> +++ b/rtl8xxxu_8192e.c
> @@ -1648,7 +1648,6 @@ struct rtl8xxxu_fileops rtl8192eu_fops = {
> .usb_quirks = rtl8xxxu_gen2_usb_quirks,
> .set_tx_power = rtl8192e_set_tx_power,
> .update_rate_mask = rtl8xxxu_gen2_update_rate_mask,
> - .report_connect = rtl8xxxu_gen2_report_connect,
> .fill_txdesc = rtl8xxxu_fill_txdesc_v2,
> .writeN_block_size = 128,
> .tx_desc_size = sizeof(struct rtl8xxxu_txdesc40),
> diff --git a/rtl8xxxu_8723a.c b/rtl8xxxu_8723a.c
> index aef3730..9c13db5 100644
> --- a/rtl8xxxu_8723a.c
> +++ b/rtl8xxxu_8723a.c
> @@ -383,7 +383,6 @@ struct rtl8xxxu_fileops rtl8723au_fops = {
> .usb_quirks = rtl8xxxu_gen1_usb_quirks,
> .set_tx_power = rtl8xxxu_gen1_set_tx_power,
> .update_rate_mask = rtl8xxxu_update_rate_mask,
> - .report_connect = rtl8xxxu_gen1_report_connect,
> .fill_txdesc = rtl8xxxu_fill_txdesc_v1,
> .writeN_block_size = 1024,
> .rx_agg_buf_size = 16000,
> diff --git a/rtl8xxxu_8723b.c b/rtl8xxxu_8723b.c
> index 02b8ddd..30dc66e 100644
> --- a/rtl8xxxu_8723b.c
> +++ b/rtl8xxxu_8723b.c
> @@ -1665,7 +1665,6 @@ struct rtl8xxxu_fileops rtl8723bu_fops = {
> .usb_quirks = rtl8xxxu_gen2_usb_quirks,
> .set_tx_power = rtl8723b_set_tx_power,
> .update_rate_mask = rtl8xxxu_gen2_update_rate_mask,
> - .report_connect = rtl8xxxu_gen2_report_connect,
> .fill_txdesc = rtl8xxxu_fill_txdesc_v2,
> .writeN_block_size = 1024,
> .tx_desc_size = sizeof(struct rtl8xxxu_txdesc40),
> diff --git a/rtl8xxxu_core.c b/rtl8xxxu_core.c
> index a9137ab..03e88d2 100644
> --- a/rtl8xxxu_core.c
> +++ b/rtl8xxxu_core.c
> @@ -4352,39 +4352,6 @@ void rtl8xxxu_gen2_update_rate_mask(struct rtl8xxxu_priv *priv,
> rtl8xxxu_gen2_h2c_cmd(priv, &h2c, sizeof(h2c.b_macid_cfg));
> }
>
> -void rtl8xxxu_gen1_report_connect(struct rtl8xxxu_priv *priv,
> - u8 macid, bool connect)
> -{
> - struct h2c_cmd h2c;
> -
> - memset(&h2c, 0, sizeof(struct h2c_cmd));
> -
> - h2c.joinbss.cmd = H2C_JOIN_BSS_REPORT;
> -
> - if (connect)
> - h2c.joinbss.data = H2C_JOIN_BSS_CONNECT;
> - else
> - h2c.joinbss.data = H2C_JOIN_BSS_DISCONNECT;
> -
> - rtl8xxxu_gen1_h2c_cmd(priv, &h2c, sizeof(h2c.joinbss));
> -}
> -
> -void rtl8xxxu_gen2_report_connect(struct rtl8xxxu_priv *priv,
> - u8 macid, bool connect)
> -{
> - struct h2c_cmd h2c;
> -
> - memset(&h2c, 0, sizeof(struct h2c_cmd));
> -
> - h2c.media_status_rpt.cmd = H2C_8723B_MEDIA_STATUS_RPT;
> - if (connect)
> - h2c.media_status_rpt.parm |= BIT(0);
> - else
> - h2c.media_status_rpt.parm &= ~BIT(0);
> -
> - rtl8xxxu_gen2_h2c_cmd(priv, &h2c, sizeof(h2c.media_status_rpt));
> -}
> -
> void rtl8xxxu_gen1_init_aggregation(struct rtl8xxxu_priv *priv)
> {
> u8 agg_ctrl, usb_spec, page_thresh, timeout;
> @@ -4525,13 +4492,10 @@ rtl8xxxu_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
> rtl8xxxu_write16(priv, REG_BCN_PSR_RPT,
> 0xc000 | bss_conf->aid);
>
> - priv->fops->report_connect(priv, 0, true);
> } else {
> val8 = rtl8xxxu_read8(priv, REG_BEACON_CTRL);
> val8 |= BEACON_DISABLE_TSF_UPDATE;
> rtl8xxxu_write8(priv, REG_BEACON_CTRL, val8);
> -
> - priv->fops->report_connect(priv, 0, false);
> }
> }
^ permalink raw reply
* Re: [RFC] qtn: add FullMAC firmware for Quantenna QSR10G wifi device
From: Oleksij Rempel @ 2016-11-29 3:49 UTC (permalink / raw)
To: IgorMitsyanko, Kyle McMartin
Cc: Ben Hutchings, Kyle McMartin, Johannes Berg, linux-wireless,
btherthala, hwang, smaksimenko, dlebed, Igor Mitsyanko,
Kamlesh Rath, Sergey Matyukevich, Avinash Patil
In-Reply-To: <f4bf1f6a-6f5a-ea85-0835-c6805afdcd04@quantenna.com>
[-- Attachment #1.1: Type: text/plain, Size: 4140 bytes --]
Am 28.11.2016 um 20:01 schrieb IgorMitsyanko:
> On 11/28/2016 08:33 PM, Oleksij Rempel wrote:
>> Am 28.11.2016 um 18:10 schrieb Oleksij Rempel:
>>> Am 28.11.2016 um 17:34 schrieb Kyle McMartin:
>>>> On Tue, Nov 22, 2016 at 9:44 AM, IgorMitsyanko
>>>> <igor.mitsyanko.os@quantenna.com> wrote:
>>>>> Hi Ben, Kyle,
>>>>> could you please share what is the position of linux-firmware
>>>>> regarding
>>>>> firmware binaries that include GPL components? Does it require
>>>>> entire GPL
>>>>> components codebase be present in linux-firmware tree, or maybe
>>>>> having this
>>>>> clause in license file is enough:
>>>>> +Open Source Software. The Software may include components that are
>>>>> licensed
>>>>> +pursuant to open source software (“Open Source Components”).
>>>>> Information
>>>>> +regarding the Open Source Components included with the Software is
>>>>> available
>>>>> +upon request to oslegal@quantenna.com. To the extent such Open Source
>>>>> +Components are required to be licensed to you under the terms of a
>>>>> separate
>>>>> +license (such as an open source license) then such other terms
>>>>> shall apply,
>>>>> and
>>>>> +nothing herein shall be deemed or interpreted to limit any rights
>>>>> you may
>>>>> have
>>>>> +under any such applicable license.
>>>>>
>>>>> From technical perspective, size of the codebase used to build
>>>>> Quantenna
>>>>> firmware is a few hundred MBs, it seems too much to include into
>>>>> linux-firmware tree.
>>>>>
>>>> I don't have strong feelings one way or another. I'd prefer not having
>>>> several hundred
>>>> MB of source that's unlikely to change included in the linux-firmware
>>>> git tree. I'm also not
>>>> a lawyer, so I can't help you decide what would satisfy the
>>>> distribution clause of the GPLv2.
>>>> We already have one GPL firmware (carl9170fw) which includes the
>>>> source, but just references
>>>> a seperate toolchain for downloading, so it's only approximately 1MB
>>>> in size in the tree.
>>>>
>>>> Is your firmware source really that large, or is it just including the
>>>> entire build toolchain with it?
>>>>
>>>> regards,
>>>> --Kyle
>>> We also have open BSD licensed open-ath9k-htc-firmware. Which is locate
>>> out of source too.
>>> https://github.com/qca/open-ath9k-htc-firmware
>>> and here is location of carl firmware:
>>> https://github.com/chunkeey/carl9170fw
>>>
>>> So, what is actual problem with Quantenna QSR10G FW?
>>> I would be really interesting to take a look on it. Is it somewhere
>>> available? Are there some devices to get hand on?
>> After seeing specs of this device i have strong feeling that "some open
>> source part" is actual linux kernel.
>>
>>
> Oleksij, yes, that's correct, it includes entire Linux environment; the
> reasoning is that it allows to hide all WiFi-related logic inside device
> itself, and emulate simple Ethernet device for external system
> (therefore, freeing external system resources).
>
> This approach was working really well for us until recently, but now
> that company is expanding, we want to have more flexible and standardize
> interface available for external system to manage wireless connection,
> and FullMAC driver seems to be the best solution here.
you mean, this driver will not use mac80211 framework provided by kernel?
> For the availability of FW sources, QSR10G-based products are still
> under development at this moment (not in the market yet), but many
> products based on previous generation chipset QSR1000 are available. For
> example, Asus has a retail design with QSR1000 chipset, and has all GPL
> sourcecode available on their website (including what Quantenna has
> provided):
>
> http://www.asus.com/Networking/RTAC87U/HelpDesk_Download/
> Quantenna provided code is in, for example, "GPL of ASUS RT-AC87U for
> firmware 3.0.0.4.378.7410" archive.
> It's basically the same as used for QSR10G.
Will Quantenna provide documentation for at least old chipsats? Playing
fair with OSS developer community has some advantages :)
--
Regards,
Oleksij
[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 213 bytes --]
^ permalink raw reply
* [PATCH] rtl8xxxu: Fix fail to reconnect to AP
From: Barry Day @ 2016-11-29 3:01 UTC (permalink / raw)
To: Jes Sorensen; +Cc: linux-wireless, Kalle Valo
Removed the report_connect functions as the h2c commands used are
not required for a soft-mac driver and they prevent reconnecting to an
AP for a couple of the chipsets.
Signed-off-by: Barry Day <briselec@gmail.com>
---
rtl8xxxu.h | 6 ------
rtl8xxxu_8192c.c | 1 -
rtl8xxxu_8192e.c | 1 -
rtl8xxxu_8723a.c | 1 -
rtl8xxxu_8723b.c | 1 -
rtl8xxxu_core.c | 36 ------------------------------------
6 files changed, 46 deletions(-)
diff --git a/rtl8xxxu.h b/rtl8xxxu.h
index df551b2..3b1f62d 100644
--- a/rtl8xxxu.h
+++ b/rtl8xxxu.h
@@ -1335,8 +1335,6 @@ struct rtl8xxxu_fileops {
bool ht40);
void (*update_rate_mask) (struct rtl8xxxu_priv *priv,
u32 ramask, int sgi);
- void (*report_connect) (struct rtl8xxxu_priv *priv,
- u8 macid, bool connect);
void (*fill_txdesc) (struct ieee80211_hw *hw, struct ieee80211_hdr *hdr,
struct ieee80211_tx_info *tx_info,
struct rtl8xxxu_txdesc32 *tx_desc, bool sgi,
@@ -1422,10 +1420,6 @@ void rtl8xxxu_update_rate_mask(struct rtl8xxxu_priv *priv,
u32 ramask, int sgi);
void rtl8xxxu_gen2_update_rate_mask(struct rtl8xxxu_priv *priv,
u32 ramask, int sgi);
-void rtl8xxxu_gen1_report_connect(struct rtl8xxxu_priv *priv,
- u8 macid, bool connect);
-void rtl8xxxu_gen2_report_connect(struct rtl8xxxu_priv *priv,
- u8 macid, bool connect);
void rtl8xxxu_gen1_init_aggregation(struct rtl8xxxu_priv *priv);
void rtl8xxxu_gen1_enable_rf(struct rtl8xxxu_priv *priv);
void rtl8xxxu_gen1_disable_rf(struct rtl8xxxu_priv *priv);
diff --git a/rtl8xxxu_8192c.c b/rtl8xxxu_8192c.c
index f9e2050..d5c37e0 100644
--- a/rtl8xxxu_8192c.c
+++ b/rtl8xxxu_8192c.c
@@ -566,7 +566,6 @@ struct rtl8xxxu_fileops rtl8192cu_fops = {
.usb_quirks = rtl8xxxu_gen1_usb_quirks,
.set_tx_power = rtl8xxxu_gen1_set_tx_power,
.update_rate_mask = rtl8xxxu_update_rate_mask,
- .report_connect = rtl8xxxu_gen1_report_connect,
.fill_txdesc = rtl8xxxu_fill_txdesc_v1,
.writeN_block_size = 128,
.rx_agg_buf_size = 16000,
diff --git a/rtl8xxxu_8192e.c b/rtl8xxxu_8192e.c
index a1178c5..401aac4 100644
--- a/rtl8xxxu_8192e.c
+++ b/rtl8xxxu_8192e.c
@@ -1648,7 +1648,6 @@ struct rtl8xxxu_fileops rtl8192eu_fops = {
.usb_quirks = rtl8xxxu_gen2_usb_quirks,
.set_tx_power = rtl8192e_set_tx_power,
.update_rate_mask = rtl8xxxu_gen2_update_rate_mask,
- .report_connect = rtl8xxxu_gen2_report_connect,
.fill_txdesc = rtl8xxxu_fill_txdesc_v2,
.writeN_block_size = 128,
.tx_desc_size = sizeof(struct rtl8xxxu_txdesc40),
diff --git a/rtl8xxxu_8723a.c b/rtl8xxxu_8723a.c
index aef3730..9c13db5 100644
--- a/rtl8xxxu_8723a.c
+++ b/rtl8xxxu_8723a.c
@@ -383,7 +383,6 @@ struct rtl8xxxu_fileops rtl8723au_fops = {
.usb_quirks = rtl8xxxu_gen1_usb_quirks,
.set_tx_power = rtl8xxxu_gen1_set_tx_power,
.update_rate_mask = rtl8xxxu_update_rate_mask,
- .report_connect = rtl8xxxu_gen1_report_connect,
.fill_txdesc = rtl8xxxu_fill_txdesc_v1,
.writeN_block_size = 1024,
.rx_agg_buf_size = 16000,
diff --git a/rtl8xxxu_8723b.c b/rtl8xxxu_8723b.c
index 02b8ddd..30dc66e 100644
--- a/rtl8xxxu_8723b.c
+++ b/rtl8xxxu_8723b.c
@@ -1665,7 +1665,6 @@ struct rtl8xxxu_fileops rtl8723bu_fops = {
.usb_quirks = rtl8xxxu_gen2_usb_quirks,
.set_tx_power = rtl8723b_set_tx_power,
.update_rate_mask = rtl8xxxu_gen2_update_rate_mask,
- .report_connect = rtl8xxxu_gen2_report_connect,
.fill_txdesc = rtl8xxxu_fill_txdesc_v2,
.writeN_block_size = 1024,
.tx_desc_size = sizeof(struct rtl8xxxu_txdesc40),
diff --git a/rtl8xxxu_core.c b/rtl8xxxu_core.c
index a9137ab..03e88d2 100644
--- a/rtl8xxxu_core.c
+++ b/rtl8xxxu_core.c
@@ -4352,39 +4352,6 @@ void rtl8xxxu_gen2_update_rate_mask(struct rtl8xxxu_priv *priv,
rtl8xxxu_gen2_h2c_cmd(priv, &h2c, sizeof(h2c.b_macid_cfg));
}
-void rtl8xxxu_gen1_report_connect(struct rtl8xxxu_priv *priv,
- u8 macid, bool connect)
-{
- struct h2c_cmd h2c;
-
- memset(&h2c, 0, sizeof(struct h2c_cmd));
-
- h2c.joinbss.cmd = H2C_JOIN_BSS_REPORT;
-
- if (connect)
- h2c.joinbss.data = H2C_JOIN_BSS_CONNECT;
- else
- h2c.joinbss.data = H2C_JOIN_BSS_DISCONNECT;
-
- rtl8xxxu_gen1_h2c_cmd(priv, &h2c, sizeof(h2c.joinbss));
-}
-
-void rtl8xxxu_gen2_report_connect(struct rtl8xxxu_priv *priv,
- u8 macid, bool connect)
-{
- struct h2c_cmd h2c;
-
- memset(&h2c, 0, sizeof(struct h2c_cmd));
-
- h2c.media_status_rpt.cmd = H2C_8723B_MEDIA_STATUS_RPT;
- if (connect)
- h2c.media_status_rpt.parm |= BIT(0);
- else
- h2c.media_status_rpt.parm &= ~BIT(0);
-
- rtl8xxxu_gen2_h2c_cmd(priv, &h2c, sizeof(h2c.media_status_rpt));
-}
-
void rtl8xxxu_gen1_init_aggregation(struct rtl8xxxu_priv *priv)
{
u8 agg_ctrl, usb_spec, page_thresh, timeout;
@@ -4525,13 +4492,10 @@ rtl8xxxu_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
rtl8xxxu_write16(priv, REG_BCN_PSR_RPT,
0xc000 | bss_conf->aid);
- priv->fops->report_connect(priv, 0, true);
} else {
val8 = rtl8xxxu_read8(priv, REG_BEACON_CTRL);
val8 |= BEACON_DISABLE_TSF_UPDATE;
rtl8xxxu_write8(priv, REG_BEACON_CTRL, val8);
-
- priv->fops->report_connect(priv, 0, false);
}
}
--
2.9.2
^ permalink raw reply related
* CRDA/wireless-regdb to limit communication to certified countries
From: Schaefer, Brandon @ 2016-11-29 0:32 UTC (permalink / raw)
To: linux-wireless@vger.kernel.org
Hello,
I'm in need of a way to meet various levels of certification based on the c=
ountry the device is operating in. For example, let's say the device will b=
e certified for 2.4 GHz and 5GHz in the US but in Japan it will be limited =
to 2.4GHz. In order to do so, I've modified wireless-regdb used by CRDA and=
it seems to work okay by country once associated with an AP, but I still h=
ave a few questions (mostly related to clarification of information from ht=
tps://wireless.wiki.kernel.org/en/developers/regulatory/processing_rules).
1) The NO-IR flag prevents a device from initiating radiation on a channel=
, but supposedly it can be lifted while world roaming if an AP is broadcast=
ing on that channel. Suppose my device is world roaming (country code 00) a=
nd all channels in country 00 are set to NO-IR.
What happens if my device notices an AP beaconing with country IE of Japan =
on a channel that was originally NO-IR?
A country IE is said to be ignored until we try to associate with it, will =
the device now allow initiation of radiation on the channels which the AP w=
as beaconing on?
2) I noticed in country 00 that the power of 60GHz channels were set to 0. =
Is this a better way of truly disabling transmission on certain frequencies=
until a Country Information Element is received from an AP? The main goal =
is to follow our certification by country correctly, and allow no transmiss=
ions that would violate certifications.
Thanks for any and all input!
Brandon
________________________________
________________________________
Please be advised that this email may contain confidential information. If =
you are not the intended recipient, please notify us by email by replying t=
o the sender and delete this message. The sender disclaims that the content=
of this email constitutes an offer to enter into, or the acceptance of, an=
y agreement; provided that the foregoing does not invalidate the binding ef=
fect of any digital or other electronic reproduction of a manual signature =
that is included in any attachment.
^ permalink raw reply
* Re: [PATCH 0/7] rtl8xxxu: Pending patches
From: Jes Sorensen @ 2016-11-29 0:08 UTC (permalink / raw)
To: Barry Day; +Cc: linux-wireless, kvalo, Larry.Finger
In-Reply-To: <20161122122610.GA23278@testbox>
Barry Day <briselec@gmail.com> writes:
> On Mon, Nov 21, 2016 at 11:59:47AM -0500, Jes Sorensen wrote:
>> Barry Day <briselec@gmail.com> writes:
>> > Testing is simple. Connect to an AP in the usual
>> > manner..disconnect..reconnect. The 8192eu will fail to reconnect and
>> > John Heenan reported the 8723bu also fails to reconnect. Even though
>> > he was directly stopping and restarting wpa_supplicant, it's the same
>> > thing to the driver - connect..disconnect..reconnect.
>>
>> Thanks for the details - I'll have a look shortly.
>>
>> > With using a usb_device pointer, each message starts with the usb bus
>> > address. Plug it into a different port and that address could
>> > change. By using a pointer to the device associated with the wiphy
>> > each message will begin with the driver name. Just makes it easier for
>> > the average user to report what's in the log because he can just grep
>> > for "rtl8xxxu".
>>
>> I see - that would be problematic for me as I quite often have 3-4 of
>> these things plugged in at the same time. Not knowing which port spits
>> out the message would make it a lot harder to track. In fact my primary
>> devel box for this (Lenovo Yoga 13) has an rtl8723au soldered on the
>> motherboard, so the moment I plug in any other dongle I'll have two.
>>
>> The alternative would be to add a prefer to the individual messages.
>>
>> Cheers,
>> Jes
>
> I should have mentioned it also places the usb address after the driver name.
If you're willing to cook up a patch, I'll have a look at it - I want to
see how it behaves though before deciding whether to approve it.
Cheers,
Jes
^ permalink raw reply
* OOM with pktgen when transmitting on ath10k station in 4.7.10+ kernel
From: Ben Greear @ 2016-11-28 23:54 UTC (permalink / raw)
To: linux-wireless@vger.kernel.org
When I over-drive ath10k station using pktgen, system goes OOM quickly. If I catch it in time
and stop pktgen, then memory is recovered over the next few seconds. I assume that there is an
un-bounded queue somewhere.
But, I cannot find any queues in the mac80211 tx path that apply to ath10k (as far as I can tell).
The one possibility is the pending queues, but printing them out with debugfs shows them all
zeros, and I have some code to bound them at 1000 pkts anyway.
I didn't see anything obvious in ath10k either, but I must be missing something...
pktgen transmits under the queue logic, so it will likely be ignoring any
queue-stopped signals from mac80211.
Are there any other places that pkts can be queued()?
Thanks,
Ben
--
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc http://www.candelatech.com
^ permalink raw reply
* Re: [RFC] qtn: add FullMAC firmware for Quantenna QSR10G wifi device
From: IgorMitsyanko @ 2016-11-28 22:07 UTC (permalink / raw)
To: Kyle McMartin
Cc: Ben Hutchings, Kyle McMartin, Johannes Berg, linux-wireless,
btherthala, hwang, smaksimenko, dlebed, Igor Mitsyanko,
Kamlesh Rath, Sergey Matyukevich, Avinash Patil
In-Reply-To: <CANLJ0sm_iBfXB5TkjwTNO8RyYK3W7z8ecOrZo5f65qjb4WMXKQ@mail.gmail.com>
On 11/28/2016 07:34 PM, Kyle McMartin wrote:
> On Tue, Nov 22, 2016 at 9:44 AM, IgorMitsyanko
> <igor.mitsyanko.os@quantenna.com> wrote:
>> Hi Ben, Kyle,
>> could you please share what is the position of linux-firmware regarding
>> firmware binaries that include GPL components? Does it require entire GPL
>> components codebase be present in linux-firmware tree, or maybe having this
>> clause in license file is enough:
>> +Open Source Software. The Software may include components that are licensed
>> +pursuant to open source software (“Open Source Components”). Information
>> +regarding the Open Source Components included with the Software is
>> available
>> +upon request to oslegal@quantenna.com. To the extent such Open Source
>> +Components are required to be licensed to you under the terms of a separate
>> +license (such as an open source license) then such other terms shall apply,
>> and
>> +nothing herein shall be deemed or interpreted to limit any rights you may
>> have
>> +under any such applicable license.
>>
>> From technical perspective, size of the codebase used to build Quantenna
>> firmware is a few hundred MBs, it seems too much to include into
>> linux-firmware tree.
>>
> I don't have strong feelings one way or another. I'd prefer not having
> several hundred
> MB of source that's unlikely to change included in the linux-firmware
> git tree. I'm also not
> a lawyer, so I can't help you decide what would satisfy the
> distribution clause of the GPLv2.
> We already have one GPL firmware (carl9170fw) which includes the
> source, but just references
> a seperate toolchain for downloading, so it's only approximately 1MB
> in size in the tree.
>
> Is your firmware source really that large, or is it just including the
> entire build toolchain with it?
It does include Linux environment with userspace tools, toolchain and
some other components that are not actually needed, you're right.
Maybe its possible to skip providing entire build environment, but
simply provide GPL code and patches to 3-d party opensource components?
Just state which version the patch is based on: for example, patch to
apply on top of Linux 3.14 sources, but no sources themselves. In this
case, it won't be possible to build firmware manually, but GPL code
modifications will be available.
>
> regards,
> --Kyle
>
>> On 11/11/2016 02:35 PM, Johannes Berg wrote:
>>> Adding linux-firmware people to Cc, since presumably they don't
>>> necessarily read linux-wireless...
>>>
>>>> Johannes, from that perspective, who are the "redistributors"?
>>>> Specifically, is linux-firmware git repository considered a
>>>> redistributor or its just hosting files? I mean, at what moment
>>>> someone else other then Quantenna will start to be legally obliged to
>>>> make GPL code used in firmware available for others?
>>> Look, I don't know. I'd assume people who ship it, like any regular
>>> distro, would be (re)distributors thereof. "Normal" (non-GPL) firmware
>>> images come with a redistribution license, but that obviously can't
>>> work here.
>>>
>>> There's some info from Ben here regarding the carl9170 case:
>>> http://lkml.iu.edu/hypermail/linux/kernel/1605.3/01176.html
>>>
>>>> Personally I still hope that linux-firmware itself is not legally
>>>> concerned with what is the content of firmware its hosting, but looks
>>>> like there already was a precedent case with carl9170 driver and
>>>> we have to somehow deal with it.
>>> That's really all I wanted to bring up. I'm not involved with the
>>> linux-firmware git tree.
>>>
>>>> There still may be a difference though: Quantenna is semiconductor
>>>> company only, software
>>>> used on actual products based on Quantenna chipsets is released by
>>>> other
>>>> companies.
>>>> I just want to present our legal team with a clear case (and position
>>>> of
>>>> Linux maintainers) so that they can
>>>> work with it and make decision on how to proceed.
>>>>
>>>> From technical perspective, as I mentioned, SDK is quite huge and
>>>> include a lot of opensource
>>>> components including full Linux, I don't think its reasonable to have
>>>> it
>>>> inside linux-firmware tree.
>>>> What are the options to share it other then providing it on request
>>>> basis:
>>>> - git repository
>>>> - store tarball somewhere on official website
>>> Clearly that wasn't deemed appropriate for carl9170, so I don't see why
>>> it'd be different here.
>>>
>>> johannes
>>
^ permalink raw reply
* Re: [PATCH v3 4/5] mwifiex: wait firmware dump complete during card remove process
From: Brian Norris @ 2016-11-28 21:27 UTC (permalink / raw)
To: Amitkumar Karwar
Cc: linux-wireless@vger.kernel.org, Cathy Luo, Nishant Sarmukadam,
rajatja@google.com, dmitry.torokhov@gmail.com, Xinming Hu
In-Reply-To: <ad60355f7feb465199f4dace37e47238@SC-EXCH04.marvell.com>
Hi Amit,
On Thu, Nov 24, 2016 at 12:14:07PM +0000, Amitkumar Karwar wrote:
> > From: Brian Norris [mailto:briannorris@chromium.org]
> > Sent: Monday, November 21, 2016 11:06 PM
> > To: Amitkumar Karwar
> > Cc: linux-wireless@vger.kernel.org; Cathy Luo; Nishant Sarmukadam;
> > rajatja@google.com; dmitry.torokhov@gmail.com; Xinming Hu
> > Subject: Re: [PATCH v3 4/5] mwifiex: wait firmware dump complete during
> > card remove process
> >
> > On Wed, Nov 16, 2016 at 06:39:08PM +0530, Amitkumar Karwar wrote:
> > > From: Xinming Hu <huxm@marvell.com>
> > >
> > > Wait for firmware dump complete in card remove function.
> > > For sdio interface, there are two diffenrent cases, card reset
> > trigger
> > > sdio_work and firmware dump trigger sdio_work.
> > > Do code rearrangement for distinguish between these two cases.
> >
> > On second review of the SDIO card reset code (which I'll repeat is
> > quite ugly), you seem to be making a bad distinction here. What if
> > there is a firmware dump happening concurrently with your card-reset
> > handling?
> > You *do* want to synchronize with the firmware dump before completing the
> > card reset, or else you might be freeing up internal card resources
> > that are still in use. See below.
>
> I ran some tests and observed that if same work function is scheduled
> by two threads, it won't have re-entrant calls. They will be executed
> one after another. In SDIO work function, we have SDIO card reset call
> after completing firmware dump. So firmware dump won't run
> concurrently with card-reset as per my understanding.
Ah, you're correct. It's somewhat obscure and potentially fragile, but
correct AFAICT. As you noted though, you do still have a use-after-free
bug, even if the concurrency isn't quite as high as I thought.
> > > Signed-off-by: Xinming Hu <huxm@marvell.com>
> > > Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
> > > ---
...
> > > --- a/drivers/net/wireless/marvell/mwifiex/sdio.c
> > > +++ b/drivers/net/wireless/marvell/mwifiex/sdio.c
> > > @@ -46,6 +46,9 @@
> > > */
> > > static u8 user_rmmod;
> > >
> > > +static void mwifiex_sdio_work(struct work_struct *work); static
> > > +DECLARE_WORK(sdio_work, mwifiex_sdio_work);
> > > +
> > > static struct mwifiex_if_ops sdio_ops; static unsigned long
> > > iface_work_flags;
> > >
> > > @@ -220,7 +223,7 @@ static int mwifiex_sdio_resume(struct device
> > *dev)
> > > * This function removes the interface and frees up the card
> > structure.
> > > */
> > > static void
> > > -mwifiex_sdio_remove(struct sdio_func *func)
> > > +__mwifiex_sdio_remove(struct sdio_func *func)
> > > {
> > > struct sdio_mmc_card *card;
> > > struct mwifiex_adapter *adapter;
> > > @@ -249,6 +252,13 @@ static int mwifiex_sdio_resume(struct device
> > *dev)
> > > mwifiex_remove_card(adapter);
> > > }
> > >
> > > +static void
> > > +mwifiex_sdio_remove(struct sdio_func *func) {
> > > + cancel_work_sync(&sdio_work);
> > > + __mwifiex_sdio_remove(func);
> > > +}
> > > +
> > > /*
> > > * SDIO suspend.
> > > *
> > > @@ -2227,7 +2237,7 @@ static void mwifiex_recreate_adapter(struct
> > sdio_mmc_card *card)
> > > * discovered and initializes them from scratch.
> > > */
> > >
> > > - mwifiex_sdio_remove(func);
> > > + __mwifiex_sdio_remove(func);
> >
> > ^^ So here, you're trying to avoid syncing with the card-reset work
> > event, except that function will free up all your resources (including
> > the static save_adapter). Thus, you're explicitly allowing a use-after-
> > free error here. That seems unwise.
>
> Even if firmware dump is triggered after card reset is started, it
> will execute after card reset is completed as discussed above. Only
> problem I can see is with "save_adapter". We can put new_adapter
> pointer in "save_adapter" at the end of mwifiex_recreate_adapter() to
> solve the issue.
Ugh, yet another band-aid? You might do better to still cancel any
pending work, just don't do it synchronously. i.e., do cancel_work()
after you've removed the card. It doesn't make sense to do a FW dump on
the "new" adapter when it was requested for the old one.
> > Instead, you should actually retain the invariant that you're doing a
> > full remove/reinitialize here, which includes doing the *same*
> > cancel_work_sync() here in mwifiex_recreate_adapter() as you would in
> > any other remove().
>
> We are executing mwifiex_recreate_adapter() as a part of sdio_work(). Calling
> cancel_work_sync() here would cause deadlock. The API is supposed to waits
> until sdio_work() is finished.
You are correct. So using the _sync() version would be wrong.
> >
> > IOW, kill the __mwifiex_sdio_remove() and just call
> > mwifiex_sdio_remove() as you were.
> >
> > That also means that you can do the same per-adapter cleanup in the
> > following patch as you do for PCIe.
>
> Currently as sdio_work recreates "card", the work structure can't be moved inside card structure.
> Let me know your suggestions.
If you address the TODO in mwifiex_create_adapter() instead, you can get
past this problem:
/* TODO mmc_hw_reset does not require destroying and re-probing the
* whole adapter. Hence there was no need to for this rube-goldberg
* design to reload the fw from an external workqueue. If we don't
* destroy the adapter we could reload the fw from
* mwifiex_main_work_queue directly.
The "save_adapter" is an abomination that should be terminated swiftly,
but it is perpetuated in part by the hacks noted in the TODO.
So I'd recommend addressing the TODO ASAP, but in the meantime, a hack
like my suggestion (cancel the FW dump work w/o synchronizing) or --
less preferably -- yours (manually set 'save_adapter' again) might be
OK.
I think I've asked elsewhere but didn't receive an answer: why is
SDIO's mwifiex_recreate_adapter() so much different from PCIe's
mwifiex_do_flr()? It seems like the latter should be refactored to
remove some of the PCIe-specific cruft from main.c and then reused for
SDIO.
Brian
^ permalink raw reply
* Re: [PATCH] rtl8xxxu: fix tx rate debug output
From: Jes Sorensen @ 2016-11-28 21:12 UTC (permalink / raw)
To: Arnd Bergmann; +Cc: Kalle Valo, linux-wireless, netdev, linux-kernel
In-Reply-To: <20161128210815.2368509-1-arnd@arndb.de>
Arnd Bergmann <arnd@arndb.de> writes:
> We accidentally print the rate before we know it for txdesc_v2:
Hi Arnd,
Thanks for the patch - Barry Day already posted a patch for this which
Kalle has applied to the wireless tree.
Cheers,
Jes
>
> wireless/realtek/rtl8xxxu/rtl8xxxu_core.c: In function 'rtl8xxxu_fill_txdesc_v2':
> wireless/realtek/rtl8xxxu/rtl8xxxu_core.c:4848:3: error: 'rate' may be used uninitialized in this function [-Werror=maybe-uninitialized]
>
> txdesc_v1 got it right, so let's do it the same way here.
>
> Fixes: b4c3d9cfb607 ("rtl8xxxu: Pass tx_info to fill_txdesc in order to have access to retry count")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
> drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 8 ++++----
> 1 file changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
> index 04141e57b8ae..a9137abc3ad9 100644
> --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
> +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
> @@ -4844,16 +4844,16 @@ rtl8xxxu_fill_txdesc_v2(struct ieee80211_hw *hw, struct ieee80211_hdr *hdr,
>
> tx_desc40 = (struct rtl8xxxu_txdesc40 *)tx_desc32;
>
> - if (rtl8xxxu_debug & RTL8XXXU_DEBUG_TX)
> - dev_info(dev, "%s: TX rate: %d, pkt size %d\n",
> - __func__, rate, cpu_to_le16(tx_desc40->pkt_size));
> -
> if (rate_flags & IEEE80211_TX_RC_MCS &&
> !ieee80211_is_mgmt(hdr->frame_control))
> rate = tx_info->control.rates[0].idx + DESC_RATE_MCS0;
> else
> rate = tx_rate->hw_value;
>
> + if (rtl8xxxu_debug & RTL8XXXU_DEBUG_TX)
> + dev_info(dev, "%s: TX rate: %d, pkt size %d\n",
> + __func__, rate, cpu_to_le16(tx_desc40->pkt_size));
> +
> seq_number = IEEE80211_SEQ_TO_SN(le16_to_cpu(hdr->seq_ctrl));
>
> tx_desc40->txdw4 = cpu_to_le32(rate);
^ permalink raw reply
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