Re: [PATCH 09/11] md: add atomic mode switching when removing disk

[kernel test robot <oliver.sang@intel.com>]

Hello,

kernel test robot noticed "BUG:sleeping_function_called_from_invalid_context_at_lib/percpu-refcount.c" on:

commit: ff944d1be0fabb044f97012008a26551ca2b6110 ("[PATCH 09/11] md: add atomic mode switching when removing disk")
url: https://github.com/intel-lab-lkp/linux/commits/tada-keisuke/md-add-infra-for-active_aligned_reads-changes/20240326-201827
patch link: https://lore.kernel.org/all/e95e7cea71d1465496a9502b4de49e75@kioxia.com/
patch subject: [PATCH 09/11] md: add atomic mode switching when removing disk

in testcase: mdadm-selftests
version: mdadm-selftests-x86_64-5f41845-1_20240223
with following parameters:

	disk: 1HDD
	test_prefix: 01replace



compiler: gcc-12
test machine: 8 threads 1 sockets Intel(R) Core(TM) i7-4790T CPU @ 2.70GHz (Haswell) with 16G memory

(please refer to attached dmesg/kmsg for entire log/backtrace)



If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <oliver.sang@intel.com>
| Closes: https://lore.kernel.org/oe-lkp/202403310746.6c8b0587-oliver.sang@intel.com


kern  :err   : [  118.926307] BUG: sleeping function called from invalid context at lib/percpu-refcount.c:331
kern  :err   : [  118.935427] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 55, name: kworker/6:0
kern  :err   : [  118.944338] preempt_count: 0, expected: 0
kern  :err   : [  118.949122] RCU nest depth: 1, expected: 0
kern  :warn  : [  118.954016] CPU: 6 PID: 55 Comm: kworker/6:0 Tainted: G S                 6.8.0-rc3-00236-gff944d1be0fa #1
kern  :warn  : [  118.964389] Hardware name: Gigabyte Technology Co., Ltd. Z97X-UD5H/Z97X-UD5H, BIOS F9 04/21/2015
kern  :warn  : [  118.973916] Workqueue: md_misc md_start_sync
kern  :warn  : [  118.978937] Call Trace:
kern  :warn  : [  118.982115]  <TASK>
kern :warn : [  118.984943] dump_stack_lvl (lib/dump_stack.c:107 (discriminator 1)) 
kern :warn : [  118.989337] __might_resched (kernel/sched/core.c:10190) 
kern :warn : [  118.993989] ? _raw_spin_lock_irqsave (arch/x86/include/asm/atomic.h:115 include/linux/atomic/atomic-arch-fallback.h:2164 include/linux/atomic/atomic-instrumented.h:1296 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:111 kernel/locking/spinlock.c:162) 
kern :warn : [  118.999243] ? preempt_notifier_dec (kernel/sched/core.c:10144) 
kern :warn : [  119.004321] percpu_ref_switch_to_atomic_sync (include/linux/kernel.h:107 lib/percpu-refcount.c:331) 
kern :warn : [  119.010353] ? percpu_ref_reinit (lib/percpu-refcount.c:329) 
kern :warn : [  119.015351] ? _raw_spin_lock_irqsave (arch/x86/include/asm/atomic.h:115 include/linux/atomic/atomic-arch-fallback.h:2164 include/linux/atomic/atomic-instrumented.h:1296 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:111 kernel/locking/spinlock.c:162) 
kern :warn : [  119.020596] ? _raw_read_unlock_irqrestore (kernel/locking/spinlock.c:161) 
kern :warn : [  119.026282] ? finish_task_switch+0x158/0x730 
kern :warn : [  119.031969] ? __switch_to (arch/x86/include/asm/bitops.h:55 include/asm-generic/bitops/instrumented-atomic.h:29 include/linux/thread_info.h:89 arch/x86/include/asm/fpu/sched.h:66 arch/x86/kernel/process_64.c:626) 
kern :warn : [  119.036435] rdev_removeable (drivers/md/md.c:9282) 
kern :warn : [  119.041083] md_start_sync (drivers/md/md.c:9339 drivers/md/md.c:9449) 
kern :warn : [  119.045462] ? mddev_unlock (drivers/md/md.c:9444) 
kern :warn : [  119.050021] ? _raw_spin_lock_irq (arch/x86/include/asm/atomic.h:115 include/linux/atomic/atomic-arch-fallback.h:2164 include/linux/atomic/atomic-instrumented.h:1296 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:120 kernel/locking/spinlock.c:170) 
kern :warn : [  119.054928] ? _raw_spin_lock_bh (kernel/locking/spinlock.c:169) 
kern :warn : [  119.059739] process_one_work (kernel/workqueue.c:2638) 
kern :warn : [  119.064476] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) 
kern :warn : [  119.068943] ? process_one_work (kernel/workqueue.c:2733) 
kern :warn : [  119.073864] kthread (kernel/kthread.c:388) 
kern :warn : [  119.077815] ? kthread_complete_and_exit (kernel/kthread.c:341) 
kern :warn : [  119.083321] ret_from_fork (arch/x86/kernel/process.c:153) 
kern :warn : [  119.087627] ? kthread_complete_and_exit (kernel/kthread.c:341) 
kern :warn : [  119.093140] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) 
kern  :warn  : [  119.097786]  </TASK>
kern  :warn  : [  119.759182] md: could not open device unknown-block(7,0).
kern  :warn  : [  119.765403] md: md_import_device returned -16
kern  :warn  : [  119.783930] md: could not open device unknown-block(7,0).
kern  :warn  : [  119.790144] md: md_import_device returned -16
kern  :warn  : [  119.892290] md: could not open device unknown-block(7,2).
kern  :warn  : [  119.898467] md: md_import_device returned -16
kern  :warn  : [  119.992911] md: could not open device unknown-block(7,2).
kern  :warn  : [  119.999095] md: md_import_device returned -16
kern  :info  : [  120.026412] md: recovery of RAID array md0
kern  :crit  : [  121.049797] md/raid1:md0: Disk failure on loop0, disabling device.
md/raid1:md0: Operation continuing on 4 devices.
kern  :crit  : [  121.063187] md/raid1:md0: Disk failure on loop2, disabling device.
md/raid1:md0: Operation continuing on 4 devices.
kern  :info  : [  121.217876] md: md0: recovery interrupted.
kern  :err   : [  121.312998] BUG: sleeping function called from invalid context at lib/percpu-refcount.c:331
kern  :err   : [  121.322110] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 49, name: kworker/5:0
kern  :err   : [  121.330961] preempt_count: 0, expected: 0
kern  :err   : [  121.335740] RCU nest depth: 1, expected: 0
kern  :warn  : [  121.340592] CPU: 5 PID: 49 Comm: kworker/5:0 Tainted: G S      W          6.8.0-rc3-00236-gff944d1be0fa #1
kern  :warn  : [  121.350970] Hardware name: Gigabyte Technology Co., Ltd. Z97X-UD5H/Z97X-UD5H, BIOS F9 04/21/2015
kern  :warn  : [  121.360474] Workqueue: md_misc md_start_sync
kern  :warn  : [  121.365471] Call Trace:
kern  :warn  : [  121.368640]  <TASK>
kern :warn : [  121.371471] dump_stack_lvl (lib/dump_stack.c:107 (discriminator 1)) 
kern :warn : [  121.375875] __might_resched (kernel/sched/core.c:10190) 
kern :warn : [  121.380527] ? _raw_spin_lock_irqsave (arch/x86/include/asm/atomic.h:115 include/linux/atomic/atomic-arch-fallback.h:2164 include/linux/atomic/atomic-instrumented.h:1296 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:111 kernel/locking/spinlock.c:162) 
kern :warn : [  121.385785] ? preempt_notifier_dec (kernel/sched/core.c:10144) 
kern :warn : [  121.390872] percpu_ref_switch_to_atomic_sync (include/linux/kernel.h:107 lib/percpu-refcount.c:331) 
kern :warn : [  121.396935] ? percpu_ref_reinit (lib/percpu-refcount.c:329) 
kern :warn : [  121.401935] ? _raw_spin_lock_irqsave (arch/x86/include/asm/atomic.h:115 include/linux/atomic/atomic-arch-fallback.h:2164 include/linux/atomic/atomic-instrumented.h:1296 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:111 kernel/locking/spinlock.c:162) 
kern :warn : [  121.407186] ? _raw_read_unlock_irqrestore (kernel/locking/spinlock.c:161) 
kern :warn : [  121.412891] ? _raw_spin_lock_irq (arch/x86/include/asm/atomic.h:115 include/linux/atomic/atomic-arch-fallback.h:2164 include/linux/atomic/atomic-instrumented.h:1296 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:120 kernel/locking/spinlock.c:170) 
kern :warn : [  121.417795] ? _raw_spin_lock_bh (kernel/locking/spinlock.c:169) 
kern :warn : [  121.422613] ? ilookup (fs/inode.c:1478) 
kern :warn : [  121.426648] rdev_removeable (drivers/md/md.c:9282) 
kern :warn : [  121.431292] md_start_sync (drivers/md/md.c:9339 drivers/md/md.c:9449) 
kern :warn : [  121.435673] ? mddev_unlock (drivers/md/md.c:9444) 
kern :warn : [  121.440220] ? _raw_spin_lock_irq (arch/x86/include/asm/atomic.h:115 include/linux/atomic/atomic-arch-fallback.h:2164 include/linux/atomic/atomic-instrumented.h:1296 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:120 kernel/locking/spinlock.c:170) 
kern :warn : [  121.445121] ? _raw_spin_lock_bh (kernel/locking/spinlock.c:169) 
kern :warn : [  121.449942] process_one_work (kernel/workqueue.c:2638) 
kern :warn : [  121.454678] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) 
kern :warn : [  121.459141] ? process_one_work (kernel/workqueue.c:2733) 
kern :warn : [  121.464048] kthread (kernel/kthread.c:388) 
kern :warn : [  121.468000] ? kthread_complete_and_exit (kernel/kthread.c:341) 
kern :warn : [  121.473526] ret_from_fork (arch/x86/kernel/process.c:153) 
kern :warn : [  121.477816] ? kthread_complete_and_exit (kernel/kthread.c:341) 
kern :warn : [  121.483320] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) 
kern  :warn  : [  121.487959]  </TASK>
kern  :info  : [  121.988888] md0: detected capacity change from 37888 to 0
kern  :info  : [  121.995036] md: md0 stopped.
kern  :info  : [  123.466969] md/raid:md0: device loop2 operational as raid disk 2
kern  :info  : [  123.473751] md/raid:md0: device loop1 operational as raid disk 1
kern  :info  : [  123.480538] md/raid:md0: device loop0 operational as raid disk 0
kern  :info  : [  123.490861] md/raid:md0: raid level 5 active with 3 out of 4 devices, algorithm 2
kern  :info  : [  123.499377] md0: detected capacity change from 0 to 107520
kern  :info  : [  123.522226] md: recovery of RAID array md0
kern  :info  : [  127.495329] md: md0: recovery done.
kern  :info  : [  128.173070] md: recovery of RAID array md0
kern  :info  : [  129.790540] md: md0: recovery done.
kern  :info  : [  138.827750] md0: detected capacity change from 107520 to 0
kern  :info  : [  138.834000] md: md0 stopped.
kern  :info  : [  140.161682] md/raid:md0: device loop2 operational as raid disk 2
kern  :info  : [  140.168444] md/raid:md0: device loop1 operational as raid disk 1
kern  :info  : [  140.175190] md/raid:md0: device loop0 operational as raid disk 0
kern  :info  : [  140.185349] md/raid:md0: raid level 5 active with 3 out of 4 devices, algorithm 2
kern  :info  : [  140.193814] md0: detected capacity change from 0 to 107520
kern  :info  : [  140.211289] md: recovery of RAID array md0
kern  :info  : [  141.742870] md: md0: recovery done.
kern  :info  : [  142.144104] md: recovery of RAID array md0
kern  :info  : [  143.458509] md: md0: recovery done.
kern  :warn  : [  152.283405] md: could not open device unknown-block(7,1).
kern  :warn  : [  152.289619] md: md_import_device returned -16
kern  :warn  : [  152.427331] md: could not open device unknown-block(7,1).
kern  :warn  : [  152.433535] md: md_import_device returned -16
kern  :warn  : [  152.536920] md: could not open device unknown-block(7,5).
kern  :warn  : [  152.543110] md: md_import_device returned -16
kern  :warn  : [  152.561921] md: could not open device unknown-block(7,5).
kern  :warn  : [  152.568109] md: md_import_device returned -16
kern  :info  : [  152.590430] md: recovery of RAID array md0
kern  :crit  : [  153.616325] md/raid:md0: Disk failure on loop2, disabling device.
kern  :crit  : [  153.623160] md/raid:md0: Operation continuing on 3 devices.
kern  :info  : [  153.800876] md: md0: recovery interrupted.
kern  :info  : [  153.922361] md: recovery of RAID array md0
kern  :info  : [  155.524625] md: md0: recovery done.
kern  :err   : [  155.754540] BUG: sleeping function called from invalid context at lib/percpu-refcount.c:331
kern  :err   : [  155.763624] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 91, name: kworker/7:1
kern  :err   : [  155.772451] preempt_count: 0, expected: 0
kern  :err   : [  155.777202] RCU nest depth: 1, expected: 0
kern  :warn  : [  155.782026] CPU: 7 PID: 91 Comm: kworker/7:1 Tainted: G S      W          6.8.0-rc3-00236-gff944d1be0fa #1
kern  :warn  : [  155.792390] Hardware name: Gigabyte Technology Co., Ltd. Z97X-UD5H/Z97X-UD5H, BIOS F9 04/21/2015
kern  :warn  : [  155.801895] Workqueue: md_misc md_start_sync
kern  :warn  : [  155.806898] Call Trace:
kern  :warn  : [  155.810066]  <TASK>
kern :warn : [  155.812896] dump_stack_lvl (lib/dump_stack.c:107 (discriminator 1)) 
kern :warn : [  155.817271] __might_resched (kernel/sched/core.c:10190) 
kern :warn : [  155.821924] ? _raw_spin_lock_irqsave (arch/x86/include/asm/atomic.h:115 include/linux/atomic/atomic-arch-fallback.h:2164 include/linux/atomic/atomic-instrumented.h:1296 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:111 kernel/locking/spinlock.c:162) 
kern :warn : [  155.827165] ? preempt_notifier_dec (kernel/sched/core.c:10144) 
kern :warn : [  155.832226] percpu_ref_switch_to_atomic_sync (include/linux/kernel.h:107 lib/percpu-refcount.c:331) 
kern :warn : [  155.838251] ? percpu_ref_reinit (lib/percpu-refcount.c:329) 
kern :warn : [  155.843234] ? _raw_spin_lock_irqsave (arch/x86/include/asm/atomic.h:115 include/linux/atomic/atomic-arch-fallback.h:2164 include/linux/atomic/atomic-instrumented.h:1296 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:111 kernel/locking/spinlock.c:162) 
kern :warn : [  155.848476] ? _raw_read_unlock_irqrestore (kernel/locking/spinlock.c:161) 
kern :warn : [  155.854145] ? finish_task_switch+0x158/0x730 
kern :warn : [  155.859821] ? __switch_to (arch/x86/include/asm/bitops.h:55 include/asm-generic/bitops/instrumented-atomic.h:29 include/linux/thread_info.h:89 arch/x86/include/asm/fpu/sched.h:66 arch/x86/kernel/process_64.c:626) 
kern :warn : [  155.864276] rdev_removeable (drivers/md/md.c:9282) 
kern :warn : [  155.868929] md_start_sync (drivers/md/md.c:9339 drivers/md/md.c:9449) 
kern :warn : [  155.873302] ? mddev_unlock (drivers/md/md.c:9444) 
kern :warn : [  155.877867] ? _raw_spin_lock_irq (arch/x86/include/asm/atomic.h:115 include/linux/atomic/atomic-arch-fallback.h:2164 include/linux/atomic/atomic-instrumented.h:1296 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:120 kernel/locking/spinlock.c:170) 
kern :warn : [  155.882764] ? _raw_spin_lock_bh (kernel/locking/spinlock.c:169) 
kern :warn : [  155.887576] process_one_work (kernel/workqueue.c:2638) 
kern :warn : [  155.892298] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) 
kern :warn : [  155.896760] ? __kthread_parkme (arch/x86/include/asm/bitops.h:206 arch/x86/include/asm/bitops.h:238 include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/kthread.c:280) 
kern :warn : [  155.901570] ? schedule (arch/x86/include/asm/preempt.h:84 kernel/sched/core.c:6816 kernel/sched/core.c:6830) 
kern :warn : [  155.905684] ? process_one_work (kernel/workqueue.c:2733) 
kern :warn : [  155.910573] kthread (kernel/kthread.c:388) 
kern :warn : [  155.914512] ? kthread_complete_and_exit (kernel/kthread.c:341) 
kern :warn : [  155.920012] ret_from_fork (arch/x86/kernel/process.c:153) 
kern :warn : [  155.924302] ? kthread_complete_and_exit (kernel/kthread.c:341) 
kern :warn : [  155.929797] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) 
kern  :warn  : [  155.934433]  </TASK>
kern  :warn  : [  156.780974] md: could not open device unknown-block(7,0).
kern  :warn  : [  156.787176] md: md_import_device returned -16
kern  :warn  : [  156.813913] md: could not open device unknown-block(7,0).
kern  :warn  : [  156.820059] md: md_import_device returned -16
kern  :warn  : [  156.871990] md: could not open device unknown-block(7,2).
kern  :warn  : [  156.878172] md: md_import_device returned -16
kern  :warn  : [  156.963988] md: could not open device unknown-block(7,2).
kern  :warn  : [  156.970173] md: md_import_device returned -16
kern  :info  : [  156.986088] md: recovery of RAID array md0
kern  :crit  : [  158.003774] md/raid:md0: Disk failure on loop0, disabling device.
kern  :crit  : [  158.010838] md/raid:md0: Operation continuing on 4 devices.
kern  :crit  : [  158.017346] md/raid:md0: Disk failure on loop2, disabling device.
kern  :crit  : [  158.024178] md/raid:md0: Operation continuing on 4 devices.
kern  :info  : [  158.184927] md: md0: recovery interrupted.
kern  :err   : [  158.266093] BUG: sleeping function called from invalid context at lib/percpu-refcount.c:331
kern  :err   : [  158.275193] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 190, name: kworker/5:2
kern  :err   : [  158.284123] preempt_count: 0, expected: 0
kern  :err   : [  158.288881] RCU nest depth: 1, expected: 0
kern  :warn  : [  158.293730] CPU: 5 PID: 190 Comm: kworker/5:2 Tainted: G S      W          6.8.0-rc3-00236-gff944d1be0fa #1
kern  :warn  : [  158.304175] Hardware name: Gigabyte Technology Co., Ltd. Z97X-UD5H/Z97X-UD5H, BIOS F9 04/21/2015
kern  :warn  : [  158.313665] Workqueue: md_misc md_start_sync
kern  :warn  : [  158.318646] Call Trace:
kern  :warn  : [  158.321801]  <TASK>
kern :warn : [  158.324609] dump_stack_lvl (lib/dump_stack.c:107 (discriminator 1)) 
kern :warn : [  158.328992] __might_resched (kernel/sched/core.c:10190) 
kern :warn : [  158.333629] ? _raw_spin_lock_irqsave (arch/x86/include/asm/atomic.h:115 include/linux/atomic/atomic-arch-fallback.h:2164 include/linux/atomic/atomic-instrumented.h:1296 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:111 kernel/locking/spinlock.c:162) 
kern :warn : [  158.338898] ? preempt_notifier_dec (kernel/sched/core.c:10144) 
kern :warn : [  158.343961] percpu_ref_switch_to_atomic_sync (include/linux/kernel.h:107 lib/percpu-refcount.c:331) 
kern :warn : [  158.349985] ? percpu_ref_reinit (lib/percpu-refcount.c:329) 
kern :warn : [  158.354967] ? _raw_spin_lock_irqsave (arch/x86/include/asm/atomic.h:115 include/linux/atomic/atomic-arch-fallback.h:2164 include/linux/atomic/atomic-instrumented.h:1296 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:111 kernel/locking/spinlock.c:162) 
kern :warn : [  158.360201] ? _raw_read_unlock_irqrestore (kernel/locking/spinlock.c:161) 
kern :warn : [  158.365884] ? _raw_spin_lock_irq (arch/x86/include/asm/atomic.h:115 include/linux/atomic/atomic-arch-fallback.h:2164 include/linux/atomic/atomic-instrumented.h:1296 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:120 kernel/locking/spinlock.c:170) 
kern :warn : [  158.370782] ? _raw_spin_lock_bh (kernel/locking/spinlock.c:169) 
kern :warn : [  158.375586] ? ilookup (fs/inode.c:1478) 
kern :warn : [  158.379617] rdev_removeable (drivers/md/md.c:9282) 
kern :warn : [  158.384252] md_start_sync (drivers/md/md.c:9339 drivers/md/md.c:9449) 
kern :warn : [  158.388627] ? mddev_unlock (drivers/md/md.c:9444) 
kern :warn : [  158.393169] ? _raw_spin_lock_irq (arch/x86/include/asm/atomic.h:115 include/linux/atomic/atomic-arch-fallback.h:2164 include/linux/atomic/atomic-instrumented.h:1296 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:120 kernel/locking/spinlock.c:170) 
kern :warn : [  158.398058] ? _raw_spin_lock_bh (kernel/locking/spinlock.c:169) 
kern :warn : [  158.402883] process_one_work (kernel/workqueue.c:2638) 
kern :warn : [  158.407610] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) 
kern :warn : [  158.412071] ? __kthread_parkme (arch/x86/include/asm/bitops.h:206 arch/x86/include/asm/bitops.h:238 include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/kthread.c:280) 
kern :warn : [  158.416896] ? schedule (arch/x86/include/asm/preempt.h:84 kernel/sched/core.c:6816 kernel/sched/core.c:6830) 
kern :warn : [  158.421007] ? process_one_work (kernel/workqueue.c:2733) 
kern :warn : [  158.425925] kthread (kernel/kthread.c:388) 
kern :warn : [  158.429879] ? kthread_complete_and_exit (kernel/kthread.c:341) 
kern :warn : [  158.435389] ret_from_fork (arch/x86/kernel/process.c:153) 
kern :warn : [  158.439676] ? kthread_complete_and_exit (kernel/kthread.c:341) 
kern :warn : [  158.445178] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) 
kern  :warn  : [  158.449820]  </TASK>
kern  :info  : [  158.999087] md0: detected capacity change from 107520 to 0
kern  :info  : [  159.005324] md: md0 stopped.
kern  :notice: [  160.278559] md/raid:md0: not clean -- starting background reconstruction
kern  :info  : [  160.286141] md/raid:md0: device loop3 operational as raid disk 3
kern  :info  : [  160.292936] md/raid:md0: device loop2 operational as raid disk 2
kern  :info  : [  160.299686] md/raid:md0: device loop1 operational as raid disk 1
kern  :info  : [  160.306458] md/raid:md0: device loop0 operational as raid disk 0
kern  :info  : [  160.316201] md/raid:md0: raid level 6 active with 4 out of 4 devices, algorithm 2
kern  :info  : [  160.324745] md0: detected capacity change from 0 to 71680
kern  :info  : [  160.342177] md: resync of RAID array md0
kern  :info  : [  162.910917] md: md0: resync done.
kern  :info  : [  163.428101] md: recovery of RAID array md0
kern  :info  : [  164.843841] md: md0: recovery done.
kern  :info  : [  173.752259] md0: detected capacity change from 71680 to 0
kern  :info  : [  173.758415] md: md0 stopped.
kern  :notice: [  175.032616] md/raid:md0: not clean -- starting background reconstruction
kern  :info  : [  175.040224] md/raid:md0: device loop3 operational as raid disk 3
kern  :info  : [  175.046985] md/raid:md0: device loop2 operational as raid disk 2
kern  :info  : [  175.053746] md/raid:md0: device loop1 operational as raid disk 1
kern  :info  : [  175.060481] md/raid:md0: device loop0 operational as raid disk 0
kern  :info  : [  175.069831] md/raid:md0: raid level 6 active with 4 out of 4 devices, algorithm 2
kern  :info  : [  175.078887] md0: detected capacity change from 0 to 71680
kern  :info  : [  175.095215] md: resync of RAID array md0
kern  :info  : [  176.660892] md: md0: resync done.
kern  :info  : [  176.989056] md: recovery of RAID array md0
kern  :info  : [  178.526271] md: md0: recovery done.
kern  :warn  : [  187.686913] md: could not open device unknown-block(7,1).
kern  :warn  : [  187.693097] md: md_import_device returned -16
kern  :warn  : [  187.771973] md: could not open device unknown-block(7,1).
kern  :warn  : [  187.778161] md: md_import_device returned -16
kern  :warn  : [  187.809159] md: could not open device unknown-block(7,5).
kern  :warn  : [  187.815314] md: md_import_device returned -16
kern  :warn  : [  187.904979] md: could not open device unknown-block(7,5).
kern  :warn  : [  187.911158] md: md_import_device returned -16
kern  :info  : [  187.926356] md: recovery of RAID array md0
kern  :crit  : [  188.944557] md/raid:md0: Disk failure on loop2, disabling device.
kern  :crit  : [  188.951622] md/raid:md0: Operation continuing on 3 devices.
kern  :info  : [  189.104924] md: md0: recovery interrupted.
kern  :info  : [  189.183218] md: recovery of RAID array md0
kern  :info  : [  190.826166] md: md0: recovery done.
kern  :err   : [  191.088693] BUG: sleeping function called from invalid context at lib/percpu-refcount.c:331
kern  :err   : [  191.097786] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 73, name: kworker/4:1
kern  :err   : [  191.106610] preempt_count: 0, expected: 0
kern  :err   : [  191.111346] RCU nest depth: 1, expected: 0
kern  :warn  : [  191.116188] CPU: 4 PID: 73 Comm: kworker/4:1 Tainted: G S      W          6.8.0-rc3-00236-gff944d1be0fa #1
kern  :warn  : [  191.126554] Hardware name: Gigabyte Technology Co., Ltd. Z97X-UD5H/Z97X-UD5H, BIOS F9 04/21/2015
kern  :warn  : [  191.136048] Workqueue: md_misc md_start_sync
kern  :warn  : [  191.141039] Call Trace:
kern  :warn  : [  191.144202]  <TASK>
kern :warn : [  191.147019] dump_stack_lvl (lib/dump_stack.c:107 (discriminator 1)) 
kern :warn : [  191.151391] __might_resched (kernel/sched/core.c:10190) 
kern :warn : [  191.156028] ? _raw_spin_lock_irqsave (arch/x86/include/asm/atomic.h:115 include/linux/atomic/atomic-arch-fallback.h:2164 include/linux/atomic/atomic-instrumented.h:1296 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:111 kernel/locking/spinlock.c:162) 
kern :warn : [  191.161272] ? preempt_notifier_dec (kernel/sched/core.c:10144) 
kern :warn : [  191.166342] percpu_ref_switch_to_atomic_sync (include/linux/kernel.h:107 lib/percpu-refcount.c:331) 
kern :warn : [  191.172364] ? percpu_ref_reinit (lib/percpu-refcount.c:329) 
kern :warn : [  191.177338] ? _raw_spin_lock_irqsave (arch/x86/include/asm/atomic.h:115 include/linux/atomic/atomic-arch-fallback.h:2164 include/linux/atomic/atomic-instrumented.h:1296 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:111 kernel/locking/spinlock.c:162) 
kern :warn : [  191.182575] ? _raw_read_unlock_irqrestore (kernel/locking/spinlock.c:161) 
kern :warn : [  191.188251] ? finish_task_switch+0x158/0x730 
kern :warn : [  191.193938] ? __switch_to (arch/x86/include/asm/bitops.h:55 include/asm-generic/bitops/instrumented-atomic.h:29 include/linux/thread_info.h:89 arch/x86/include/asm/fpu/sched.h:66 arch/x86/kernel/process_64.c:626) 
kern :warn : [  191.198400] rdev_removeable (drivers/md/md.c:9282) 
kern :warn : [  191.203035] md_start_sync (drivers/md/md.c:9339 drivers/md/md.c:9449) 
kern :warn : [  191.207404] ? mddev_unlock (drivers/md/md.c:9444) 
kern :warn : [  191.211944] ? _raw_spin_lock_irq (arch/x86/include/asm/atomic.h:115 include/linux/atomic/atomic-arch-fallback.h:2164 include/linux/atomic/atomic-instrumented.h:1296 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:120 kernel/locking/spinlock.c:170) 
kern :warn : [  191.216833] ? _raw_spin_lock_bh (kernel/locking/spinlock.c:169) 
kern :warn : [  191.221636] process_one_work (kernel/workqueue.c:2638) 
kern :warn : [  191.226359] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) 
kern :warn : [  191.230821] ? __kthread_parkme (arch/x86/include/asm/bitops.h:206 arch/x86/include/asm/bitops.h:238 include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/kthread.c:280) 
kern :warn : [  191.235622] ? schedule (arch/x86/include/asm/preempt.h:84 kernel/sched/core.c:6816 kernel/sched/core.c:6830) 
kern :warn : [  191.239731] ? process_one_work (kernel/workqueue.c:2733) 
kern :warn : [  191.244628] kthread (kernel/kthread.c:388) 
kern :warn : [  191.248570] ? kthread_complete_and_exit (kernel/kthread.c:341) 
kern :warn : [  191.254065] ret_from_fork (arch/x86/kernel/process.c:153) 
kern :warn : [  191.258346] ? kthread_complete_and_exit (kernel/kthread.c:341) 
kern :warn : [  191.263841] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) 
kern  :warn  : [  191.268471]  </TASK>
kern  :warn  : [  192.084192] md: could not open device unknown-block(7,0).
kern  :warn  : [  192.090393] md: md_import_device returned -16
kern  :warn  : [  192.111934] md: could not open device unknown-block(7,0).
kern  :warn  : [  192.118110] md: md_import_device returned -16
kern  :warn  : [  192.228041] md: could not open device unknown-block(7,2).
kern  :warn  : [  192.234252] md: md_import_device returned -16
kern  :warn  : [  192.345984] md: could not open device unknown-block(7,2).
kern  :warn  : [  192.352186] md: md_import_device returned -16
kern  :info  : [  192.373232] md: recovery of RAID array md0
kern  :crit  : [  193.383569] md/raid:md0: Disk failure on loop0, disabling device.
kern  :crit  : [  193.390634] md/raid:md0: Operation continuing on 4 devices.
kern  :crit  : [  193.397384] md/raid:md0: Disk failure on loop2, disabling device.
kern  :crit  : [  193.404226] md/raid:md0: Operation continuing on 4 devices.
kern  :info  : [  193.616932] md: md0: recovery interrupted.
kern  :err   : [  193.716934] BUG: sleeping function called from invalid context at lib/percpu-refcount.c:331
kern  :err   : [  193.726036] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 73, name: kworker/4:1
kern  :err   : [  193.734867] preempt_count: 0, expected: 0
kern  :err   : [  193.739606] RCU nest depth: 1, expected: 0
kern  :warn  : [  193.744441] CPU: 4 PID: 73 Comm: kworker/4:1 Tainted: G S      W          6.8.0-rc3-00236-gff944d1be0fa #1
kern  :warn  : [  193.754806] Hardware name: Gigabyte Technology Co., Ltd. Z97X-UD5H/Z97X-UD5H, BIOS F9 04/21/2015
kern  :warn  : [  193.764296] Workqueue: md_misc md_start_sync
kern  :warn  : [  193.769286] Call Trace:
kern  :warn  : [  193.772446]  <TASK>
kern :warn : [  193.775254] dump_stack_lvl (lib/dump_stack.c:107 (discriminator 1)) 
kern :warn : [  193.779632] __might_resched (kernel/sched/core.c:10190) 
kern :warn : [  193.784267] ? _raw_spin_lock_irqsave (arch/x86/include/asm/atomic.h:115 include/linux/atomic/atomic-arch-fallback.h:2164 include/linux/atomic/atomic-instrumented.h:1296 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:111 kernel/locking/spinlock.c:162) 
kern :warn : [  193.789513] ? preempt_notifier_dec (kernel/sched/core.c:10144) 
kern :warn : [  193.794581] percpu_ref_switch_to_atomic_sync (include/linux/kernel.h:107 lib/percpu-refcount.c:331) 
kern :warn : [  193.800606] ? percpu_ref_reinit (lib/percpu-refcount.c:329) 
kern :warn : [  193.805588] ? _raw_spin_lock_irqsave (arch/x86/include/asm/atomic.h:115 include/linux/atomic/atomic-arch-fallback.h:2164 include/linux/atomic/atomic-instrumented.h:1296 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:111 kernel/locking/spinlock.c:162) 
kern :warn : [  193.810832] ? _raw_read_unlock_irqrestore (kernel/locking/spinlock.c:161) 
kern :warn : [  193.816507] ? _raw_spin_lock_irq (arch/x86/include/asm/atomic.h:115 include/linux/atomic/atomic-arch-fallback.h:2164 include/linux/atomic/atomic-instrumented.h:1296 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:120 kernel/locking/spinlock.c:170) 
kern :warn : [  193.821395] ? _raw_spin_lock_bh (kernel/locking/spinlock.c:169) 
kern :warn : [  193.826198] ? ilookup (fs/inode.c:1478) 
kern :warn : [  193.830227] rdev_removeable (drivers/md/md.c:9282) 
kern :warn : [  193.834870] md_start_sync (drivers/md/md.c:9339 drivers/md/md.c:9449) 
kern :warn : [  193.839241] ? mddev_unlock (drivers/md/md.c:9444) 
kern :warn : [  193.843791] ? _raw_spin_lock_irq (arch/x86/include/asm/atomic.h:115 include/linux/atomic/atomic-arch-fallback.h:2164 include/linux/atomic/atomic-instrumented.h:1296 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:120 kernel/locking/spinlock.c:170) 
kern :warn : [  193.848687] ? _raw_spin_lock_bh (kernel/locking/spinlock.c:169) 
kern :warn : [  193.853488] process_one_work (kernel/workqueue.c:2638) 
kern :warn : [  193.858212] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) 
kern :warn : [  193.862676] ? __kthread_parkme (arch/x86/include/asm/bitops.h:206 arch/x86/include/asm/bitops.h:238 include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/kthread.c:280) 
kern :warn : [  193.867485] ? schedule (arch/x86/include/asm/preempt.h:84 kernel/sched/core.c:6816 kernel/sched/core.c:6830) 
kern :warn : [  193.871592] ? process_one_work (kernel/workqueue.c:2733) 
kern :warn : [  193.876481] kthread (kernel/kthread.c:388) 
kern :warn : [  193.880417] ? kthread_complete_and_exit (kernel/kthread.c:341) 
kern :warn : [  193.885933] ret_from_fork (arch/x86/kernel/process.c:153) 
kern :warn : [  193.890225] ? kthread_complete_and_exit (kernel/kthread.c:341) 
kern :warn : [  193.895721] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) 
kern  :warn  : [  193.900360]  </TASK>
kern  :info  : [  194.330682] md0: detected capacity change from 71680 to 0
kern  :info  : [  194.336833] md: md0 stopped.
kern  :notice: [  195.543602] md/raid10:md0: not clean -- starting background reconstruction
kern  :info  : [  195.551446] md/raid10:md0: active with 4 out of 4 devices
kern  :info  : [  195.558030] md0: detected capacity change from 0 to 71680
kern  :info  : [  195.577281] md: resync of RAID array md0
kern  :info  : [  198.109747] md: md0: resync done.
kern  :info  : [  198.542124] md: recovery of RAID array md0
kern  :info  : [  200.056477] md: md0: recovery done.
kern  :info  : [  209.239944] md0: detected capacity change from 71680 to 0
kern  :info  : [  209.246082] md: md0 stopped.
kern  :notice: [  210.527395] md/raid10:md0: not clean -- starting background reconstruction
kern  :info  : [  210.535251] md/raid10:md0: active with 4 out of 4 devices
kern  :info  : [  210.541889] md0: detected capacity change from 0 to 71680
kern  :info  : [  210.561317] md: resync of RAID array md0
kern  :info  : [  211.716332] md: md0: resync done.
kern  :info  : [  212.447069] md: recovery of RAID array md0
kern  :info  : [  213.978699] md: md0: recovery done.
kern  :warn  : [  223.211938] md: could not open device unknown-block(7,1).
kern  :warn  : [  223.218124] md: md_import_device returned -16
kern  :warn  : [  223.257300] md: could not open device unknown-block(7,1).
kern  :warn  : [  223.263494] md: md_import_device returned -16
kern  :warn  : [  223.287023] md: could not open device unknown-block(7,5).
kern  :warn  : [  223.293171] md: md_import_device returned -16
kern  :warn  : [  223.362992] md: could not open device unknown-block(7,5).
kern  :warn  : [  223.369185] md: md_import_device returned -16
kern  :info  : [  223.384335] md: recovery of RAID array md0
kern  :crit  : [  224.403344] md/raid10:md0: Disk failure on loop2, disabling device.
md/raid10:md0: Operation continuing on 3 devices.
kern  :info  : [  224.488889] md: md0: recovery interrupted.
kern  :info  : [  224.585256] md: recovery of RAID array md0
kern  :info  : [  226.293761] md: md0: recovery done.
kern  :err   : [  226.554473] BUG: sleeping function called from invalid context at lib/percpu-refcount.c:331
kern  :err   : [  226.563578] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 130, name: kworker/6:2
kern  :err   : [  226.572535] preempt_count: 0, expected: 0
kern  :err   : [  226.577303] RCU nest depth: 1, expected: 0
kern  :warn  : [  226.582161] CPU: 6 PID: 130 Comm: kworker/6:2 Tainted: G S      W          6.8.0-rc3-00236-gff944d1be0fa #1
kern  :warn  : [  226.592612] Hardware name: Gigabyte Technology Co., Ltd. Z97X-UD5H/Z97X-UD5H, BIOS F9 04/21/2015
kern  :warn  : [  226.602101] Workqueue: md_misc md_start_sync
kern  :warn  : [  226.607083] Call Trace:
kern  :warn  : [  226.610237]  <TASK>
kern :warn : [  226.613045] dump_stack_lvl (lib/dump_stack.c:107 (discriminator 1)) 
kern :warn : [  226.617425] __might_resched (kernel/sched/core.c:10190) 
kern :warn : [  226.622058] ? _raw_spin_lock_irqsave (arch/x86/include/asm/atomic.h:115 include/linux/atomic/atomic-arch-fallback.h:2164 include/linux/atomic/atomic-instrumented.h:1296 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:111 kernel/locking/spinlock.c:162) 
kern :warn : [  226.627303] ? preempt_notifier_dec (kernel/sched/core.c:10144) 
kern :warn : [  226.632374] percpu_ref_switch_to_atomic_sync (include/linux/kernel.h:107 lib/percpu-refcount.c:331) 
kern :warn : [  226.638396] ? percpu_ref_reinit (lib/percpu-refcount.c:329) 
kern :warn : [  226.643378] ? _raw_spin_lock_irqsave (arch/x86/include/asm/atomic.h:115 include/linux/atomic/atomic-arch-fallback.h:2164 include/linux/atomic/atomic-instrumented.h:1296 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:111 kernel/locking/spinlock.c:162) 
kern :warn : [  226.648613] ? _raw_read_unlock_irqrestore (kernel/locking/spinlock.c:161) 
kern :warn : [  226.654291] ? _raw_spin_lock_irq (arch/x86/include/asm/atomic.h:115 include/linux/atomic/atomic-arch-fallback.h:2164 include/linux/atomic/atomic-instrumented.h:1296 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:120 kernel/locking/spinlock.c:170) 
kern :warn : [  226.659186] ? _raw_spin_lock_bh (kernel/locking/spinlock.c:169) 
kern :warn : [  226.663987] ? ilookup (fs/inode.c:1478) 
kern :warn : [  226.668009] rdev_removeable (drivers/md/md.c:9282) 
kern :warn : [  226.672646] md_start_sync (drivers/md/md.c:9339 drivers/md/md.c:9449) 
kern :warn : [  226.677022] ? mddev_unlock (drivers/md/md.c:9444) 
kern :warn : [  226.681565] ? _raw_spin_lock_irq (arch/x86/include/asm/atomic.h:115 include/linux/atomic/atomic-arch-fallback.h:2164 include/linux/atomic/atomic-instrumented.h:1296 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:120 kernel/locking/spinlock.c:170) 
kern :warn : [  226.686461] ? _raw_spin_lock_bh (kernel/locking/spinlock.c:169) 
kern :warn : [  226.691271] process_one_work (kernel/workqueue.c:2638) 
kern :warn : [  226.695995] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) 
kern :warn : [  226.700459] ? __kthread_parkme (arch/x86/include/asm/bitops.h:206 arch/x86/include/asm/bitops.h:238 include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/kthread.c:280) 
kern :warn : [  226.705266] ? schedule (arch/x86/include/asm/preempt.h:84 kernel/sched/core.c:6816 kernel/sched/core.c:6830) 
kern :warn : [  226.709374] ? process_one_work (kernel/workqueue.c:2733) 
kern :warn : [  226.714265] kthread (kernel/kthread.c:388) 
kern :warn : [  226.718208] ? kthread_complete_and_exit (kernel/kthread.c:341) 
kern :warn : [  226.723711] ret_from_fork (arch/x86/kernel/process.c:153) 
kern :warn : [  226.728000] ? kthread_complete_and_exit (kernel/kthread.c:341) 
kern :warn : [  226.733502] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) 
kern  :warn  : [  226.738140]  </TASK>
kern  :warn  : [  227.649205] md: could not open device unknown-block(7,0).
kern  :warn  : [  227.655415] md: md_import_device returned -16
kern  :warn  : [  227.685927] md: could not open device unknown-block(7,0).
kern  :warn  : [  227.692107] md: md_import_device returned -16
kern  :warn  : [  227.797982] md: could not open device unknown-block(7,2).
kern  :warn  : [  227.804162] md: md_import_device returned -16
kern  :warn  : [  227.944996] md: could not open device unknown-block(7,2).
kern  :warn  : [  227.951208] md: md_import_device returned -16
kern  :info  : [  227.967120] md: recovery of RAID array md0
kern  :crit  : [  228.985719] md/raid10:md0: Disk failure on loop0, disabling device.
md/raid10:md0: Operation continuing on 4 devices.
kern  :crit  : [  228.999227] md/raid10:md0: Disk failure on loop2, disabling device.
md/raid10:md0: Operation continuing on 4 devices.
kern  :info  : [  229.096887] md: md0: recovery interrupted.
kern  :err   : [  229.165863] BUG: sleeping function called from invalid context at lib/percpu-refcount.c:331
kern  :err   : [  229.174964] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 73, name: kworker/4:1
kern  :err   : [  229.183784] preempt_count: 0, expected: 0
kern  :err   : [  229.188523] RCU nest depth: 1, expected: 0
kern  :warn  : [  229.193358] CPU: 4 PID: 73 Comm: kworker/4:1 Tainted: G S      W          6.8.0-rc3-00236-gff944d1be0fa #1
kern  :warn  : [  229.203724] Hardware name: Gigabyte Technology Co., Ltd. Z97X-UD5H/Z97X-UD5H, BIOS F9 04/21/2015
kern  :warn  : [  229.213227] Workqueue: md_misc md_start_sync
kern  :warn  : [  229.218220] Call Trace:
kern  :warn  : [  229.221379]  <TASK>
kern :warn : [  229.224200] dump_stack_lvl (lib/dump_stack.c:107 (discriminator 1)) 
kern :warn : [  229.228586] __might_resched (kernel/sched/core.c:10190) 
kern :warn : [  229.233227] ? _raw_spin_lock_irqsave (arch/x86/include/asm/atomic.h:115 include/linux/atomic/atomic-arch-fallback.h:2164 include/linux/atomic/atomic-instrumented.h:1296 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:111 kernel/locking/spinlock.c:162) 
kern :warn : [  229.238476] ? preempt_notifier_dec (kernel/sched/core.c:10144) 
kern :warn : [  229.243555] percpu_ref_switch_to_atomic_sync (include/linux/kernel.h:107 lib/percpu-refcount.c:331) 
kern :warn : [  229.249583] ? percpu_ref_reinit (lib/percpu-refcount.c:329) 
kern :warn : [  229.254570] ? _raw_spin_lock_irqsave (arch/x86/include/asm/atomic.h:115 include/linux/atomic/atomic-arch-fallback.h:2164 include/linux/atomic/atomic-instrumented.h:1296 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:111 kernel/locking/spinlock.c:162) 
kern :warn : [  229.259823] ? _raw_read_unlock_irqrestore (kernel/locking/spinlock.c:161) 
kern :warn : [  229.265515] ? _raw_spin_lock_irq (arch/x86/include/asm/atomic.h:115 include/linux/atomic/atomic-arch-fallback.h:2164 include/linux/atomic/atomic-instrumented.h:1296 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:120 kernel/locking/spinlock.c:170) 
kern :warn : [  229.270433] ? _raw_spin_lock_bh (kernel/locking/spinlock.c:169) 
kern :warn : [  229.275259] ? ilookup (fs/inode.c:1478) 
kern :warn : [  229.279304] rdev_removeable (drivers/md/md.c:9282) 
kern :warn : [  229.283960] md_start_sync (drivers/md/md.c:9339 drivers/md/md.c:9449) 
kern :warn : [  229.288353] ? mddev_unlock (drivers/md/md.c:9444) 
kern :warn : [  229.292926] ? _raw_spin_lock_irq (arch/x86/include/asm/atomic.h:115 include/linux/atomic/atomic-arch-fallback.h:2164 include/linux/atomic/atomic-instrumented.h:1296 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:120 kernel/locking/spinlock.c:170) 
kern :warn : [  229.297822] ? _raw_spin_lock_bh (kernel/locking/spinlock.c:169) 
kern :warn : [  229.302628] process_one_work (kernel/workqueue.c:2638) 
kern :warn : [  229.307351] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) 
kern :warn : [  229.311816] ? __kthread_parkme (arch/x86/include/asm/bitops.h:206 arch/x86/include/asm/bitops.h:238 include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/kthread.c:280) 
kern :warn : [  229.316625] ? schedule (arch/x86/include/asm/preempt.h:84 kernel/sched/core.c:6816 kernel/sched/core.c:6830) 
kern :warn : [  229.320742] ? process_one_work (kernel/workqueue.c:2733) 
kern :warn : [  229.325639] kthread (kernel/kthread.c:388) 
kern :warn : [  229.329583] ? kthread_complete_and_exit (kernel/kthread.c:341) 
kern :warn : [  229.335086] ret_from_fork (arch/x86/kernel/process.c:153) 
kern :warn : [  229.339375] ? kthread_complete_and_exit (kernel/kthread.c:341) 
kern :warn : [  229.344903] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) 
kern  :warn  : [  229.349552]  </TASK>
kern  :info  : [  230.034175] md0: detected capacity change from 71680 to 0
kern  :info  : [  230.040328] md: md0 stopped.
user  :notice: [  230.172156] /lkp/benchmarks/mdadm-selftests/tests/01replace...

user  :notice: [  230.182102] 	ERROR: dmesg prints errors when testing 01replace!



user  :notice: [  230.313235] FAILED - see /var/tmp/01replace.log and /var/tmp/fail01replace.log for details

user  :notice: [  232.427336] /usr/bin/wget -q --timeout=3600 --tries=1 --local-encoding=UTF-8 http://internal-lkp-server:80/~lkp/cgi-bin/lkp-jobfile-append-var?job_file=/lkp/jobs/scheduled/lkp-hsw-d05/mdadm-selftests-1HDD-01replace-debian-12-x86_64-20240206.cgz-ff944d1be0fa-20240330-19609-1pfk1lw-3.yaml&job_state=post_run -O /dev/null

user  :notice: [  234.062157] kill 564 vmstat --timestamp -n 10

user  :notice: [  234.166819] kill 562 dmesg --follow --decode



The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20240331/202403310746.6c8b0587-oliver.sang@intel.com



-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki