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Date: Wed, 22 Jul 2020 13:13:51 +0530
From: Naresh Kamboju <naresh.kamboju@...aro.org>
To: open list <linux-kernel@...r.kernel.org>, rcu@...r.kernel.org,
Linux-Next Mailing List <linux-next@...r.kernel.org>,
lkft-triage@...ts.linaro.org
Cc: Peter Zijlstra <peterz@...radead.org>,
Ingo Molnar <mingo@...hat.com>,
"Paul E. McKenney" <paulmck@...nel.org>,
Will Deacon <will@...nel.org>,
Josh Triplett <josh@...htriplett.org>,
Steven Rostedt <rostedt@...dmis.org>,
mathieu.desnoyers@...icios.com, jiangshanlai@...il.com,
Joel Fernandes <joel@...lfernandes.org>,
Stephen Rothwell <sfr@...b.auug.org.au>,
Arnd Bergmann <arnd@...db.de>, walter-zh.wu@...iatek.com,
neeraju@...eaurora.org, Vinod Koul <vinod.koul@...aro.org>
Subject: BUG: sleeping function called from invalid context at
kernel/locking/mutex.c db410c
Kernel BUG noticed on arm64 db410c device while booting linux next 20200721 tag.
Continually popping up these BUG messages on the boot console and kernel warning
also noticed.
metadata:
git branch: master
git repo: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
git commit: de2e69cfe54a8f2ed4b75f09d3110c514f45d38e
git describe: next-20200721
kernel-config:
http://snapshots.linaro.org/openembedded/lkft/lkft/sumo/dragonboard-410c/lkft/linux-next/818/config
build-location:
http://snapshots.linaro.org/openembedded/lkft/lkft/sumo/dragonboard-410c/lkft/linux-next/818
Crash log:
[ 0.444349] BUG: sleeping function called from invalid context at
/usr/src/kernel/kernel/locking/mutex.c:935
[ 0.444422] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid:
30, name: kworker/0:1
[ 0.444458] 2 locks held by kworker/0:1/30:
[ 0.444489] #0: ffff00000eb15138
((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x208/0x768
[ 0.444627] #1: ffff800013713df0
((work_completion)(&sdp->work)){+.+.}-{0:0}, at:
process_one_work+0x208/0x768
[ 0.444761] CPU: 0 PID: 30 Comm: kworker/0:1 Not tainted
5.8.0-rc6-next-20200721 #1
[ 0.444787] Hardware name: Qualcomm Technologies, Inc. APQ 8016 SBC (DT)
[ 0.444817] Workqueue: rcu_gp srcu_invoke_callbacks
[ 0.444856] Call trace:
[ 0.444883] dump_backtrace+0x0/0x1f8
[ 0.444910] show_stack+0x2c/0x38
[ 0.444939] dump_stack+0xf0/0x16c
[ 0.444969] ___might_sleep+0x144/0x208
[ 0.444996] __might_sleep+0x54/0x90
[ 0.445027] __mutex_lock+0x64/0x970
[ 0.445055] mutex_lock_nested+0x54/0x70
[ 0.445084] device_del+0x44/0x3c0
[ 0.445110] device_unregister+0x24/0x78
[ 0.445138] __device_link_free_srcu+0x64/0x70
[ 0.445164] srcu_invoke_callbacks+0x10c/0x1a0
[ 0.445191] process_one_work+0x2b0/0x768
[ 0.445218] worker_thread+0x48/0x498
[ 0.445246] kthread+0x158/0x168
[ 0.445274] ret_from_fork+0x10/0x1c
<>
[ 13.015528] BUG: sleeping function called from invalid context at
/usr/src/kernel/kernel/locking/mutex.c:935
[ 13.015588] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid:
188, name: kworker/2:4
[ 13.025268] 2 locks held by kworker/2:4/188:
[ 13.032647] #0: ffff00000eb15138
((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x208/0x768
[ 13.036920] #1: ffff80001426bdf0
((work_completion)(&sdp->work)){+.+.}-{0:0}, at:
process_one_work+0x208/0x768
[ 13.046032] CPU: 2 PID: 188 Comm: kworker/2:4 Tainted: G W
5.8.0-rc6-next-20200721 #1
[ 13.056039] Hardware name: Qualcomm Technologies, Inc. APQ 8016 SBC (DT)
[ 13.065417] Workqueue: rcu_gp srcu_invoke_callbacks
[ 13.072091] Call trace:
[ 13.076695] dump_backtrace+0x0/0x1f8
[ 13.079124] show_stack+0x2c/0x38
[ 13.082944] dump_stack+0xf0/0x16c
[ 13.086243] ___might_sleep+0x144/0x208
[ 13.089542] __might_sleep+0x54/0x90
[ 13.093274] __mutex_lock+0x64/0x970
[ 13.097094] mutex_lock_nested+0x54/0x70
[ 13.100654] device_del+0x44/0x3c0
[ 13.104556] device_unregister+0x24/0x78
[ 13.107771] __device_link_free_srcu+0x64/0x70
[ 13.111850] srcu_invoke_callbacks+0x10c/0x1a0
[ 13.116103] process_one_work+0x2b0/0x768
[ 13.120530] worker_thread+0x48/0x498
[ 13.124610] kthread+0x158/0x168
[ 13.128254] ret_from_fork+0x10/0x1c
[ 13.131818] BUG: scheduling while atomic: kworker/2:4/188/0x00000201
[ 13.135243] 3 locks held by kworker/2:4/188:
[ 13.141558] #0: ffff00000eb15138
((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x208/0x768
[ 13.145834] #1: ffff80001426bdf0
((work_completion)(&sdp->work)){+.+.}-{0:0}, at:
process_one_work+0x208/0x768
[ 13.154924] #2: ffff8000127f2fd0 (kernfs_mutex){+.+.}-{3:3}, at:
__kernfs_remove+0x304/0x378
[ 13.164952] Modules linked in: mdt_loader videobuf2_common
drm_kms_helper qcom_rng i2c_qcom_cci display_connector drm socinfo
rmtfs_mem rfkill qrtr ns fuse
[ 13.173653] CPU: 2 PID: 188 Comm: kworker/2:4 Tainted: G W
5.8.0-rc6-next-20200721 #1
[ 13.187296] Hardware name: Qualcomm Technologies, Inc. APQ 8016 SBC (DT)
[ 13.196666] Workqueue: rcu_gp srcu_invoke_callbacks
[ 13.203340] Call trace:
[[0;32m OK [0m] Started Network Manager Script Dispatcher Servic[
13.207942] dump_backtrace+0x0/0x1f8
e.[ 13.221350] __schedule_bug+0x74/0xa0
[ 13.221386] __schedule+0x890/0x938
[ 13.224160] schedule+0x48/0x110
[ 13.227462] schedule_preempt_disabled+0x1c/0x30
[ 13.230933] __mutex_lock+0x814/0x970
[ 13.235533] mutex_lock_nested+0x54/0x70
[ 13.239091] __kernfs_remove+0x304/0x378
[ 13.243085] kernfs_remove_by_name_ns+0x5c/0xc0
[ 13.246991] sysfs_remove_link+0x30/0x60
[ 13.251246] device_remove_class_symlinks+0x78/0xa8
[ 13.255411] device_del+0xb8/0x3c0
[ 13.260011] device_unregister+0x24/0x78
[ 13.263744] __device_link_free_srcu+0x64/0x70
[ 13.267746] srcu_invoke_callbacks+0x10c/0x1a0
[ 13.271992] process_one_work+0x2b0/0x768
[ 13.276417] worker_thread+0x48/0x498
[ 13.280499] kthread+0x158/0x168
[ 13.284144] ret_from_fork+0x10/0x1c
[ 13.289062] BUG: workqueue leaked lock or atomic: kworker/2:4/0xfffffe00/188
[ 13.289062] last function: srcu_invoke_callbacks
[ 13.291056] no locks held by kworker/2:4/188.
[ 13.302935] CPU: 2 PID: 188 Comm: kworker/2:4 Tainted: G W
5.8.0-rc6-next-20200721 #1
[ 13.305703] rtc-pm8xxx 200f000.spmi:pm8916@0:rtc@...0: registered as rtc0
[ 13.307317] Hardware name: Qualcomm Technologies, Inc. APQ 8016 SBC (DT)
[ 13.307333] Workqueue: rcu_gp srcu_invoke_callbacks
[ 13.307349] Call trace:
[ 13.307360] dump_backtrace+0x0/0x1f8
[ 13.307369] show_stack+0x2c/0x38
[ 13.307381] dump_stack+0xf0/0x16c
[ 13.307392] process_one_work+0x624/0x768
[ 13.347424] worker_thread+0x48/0x498
[ 13.351501] kthread+0x158/0x168
[ 13.355146] ret_from_fork+0x10/0x1c
[ 13.358487] BUG: scheduling while atomic: kworker/2:4/188/0xfffffe01
[ 13.362056] no locks held by kworker/2:4/188.
[ 13.363536] rtc-pm8xxx 200f000.spmi:pm8916@0:rtc@...0: setting
system clock to 1970-01-01T00:00:19 UTC (19)
[ 13.368361] Modules linked in: rtc_pm8xxx(+) videobuf2_memops
videobuf2_v4l2 mdt_loader videobuf2_common drm_kms_helper qcom_rng
i2c_qcom_cci display_connector drm socinfo rmtfs_mem rfkill qrtr ns
fuse
[ 13.382197] CPU: 2 PID: 188 Comm: kworker/2:4 Tainted: G W
5.8.0-rc6-next-20200721 #1
[ 13.400208] Hardware name: Qualcomm Technologies, Inc. APQ 8016 SBC (DT)
[ 13.409418] Workqueue: 0x0 (rcu_gp)
[ 13.416084] Call trace:
[ 13.419646] dump_backtrace+0x0/0x1f8
[ 13.421815] show_stack+0x2c/0x38
[ 13.425635] dump_stack+0xf0/0x16c
[ 13.428933] __schedule_bug+0x74/0xa0
[ 13.432234] __schedule+0x890/0x938
[ 13.435967] schedule+0x48/0x110
[ 13.439262] worker_thread+0xc0/0x498
[ 13.442735] kthread+0x158/0x168
[ 13.446294] ret_from_fork+0x10/0x1c
Full test log,
https://qa-reports.linaro.org/lkft/linux-next-oe/build/next-20200721/testrun/2972385/suite/linux-log-parser/test/check-kernel-warning-1595062/log
--
Linaro LKFT
https://lkft.linaro.org
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