[ 756.541850] nipa-hw-worker: drivers/net:napi_threaded.py: timed out
[ 756.544298] nipa-hw-worker: [4/38] Retrying drivers/net:napi_threaded.py
[ 756.703978] kselftest: Running tests in drivers/net
[ 989.724624] INFO: task python3:5016 blocked for more than 122 seconds.
[ 989.732863] Not tainted 7.0.0-rc5-hvlo-g0a794eac6ce8 #1
[ 989.740105] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 989.749696] task:python3 state:D stack:25312 pid:5016 tgid:5016 ppid:5015 task_flags:0x400100 flags:0x00080000
[ 989.762904] Call Trace:
[ 989.766445]
[ 989.769597] __schedule+0xad9/0x1490
[ 989.774414] ? io_schedule_timeout+0x130/0x130
[ 989.780199] ? find_held_lock+0x2b/0x80
[ 989.785308] ? __lock_release.isra.0+0x59/0x170
[ 989.791192] schedule+0xd4/0x260
[ 989.795610] schedule_preempt_disabled+0x18/0x30
[ 989.801592] __mutex_lock+0xd76/0x1f20
[ 989.806596] ? threaded_store+0x132/0x220
[ 989.811896] ? ww_mutex_lock+0x160/0x160
[ 989.817096] ? selinux_inode_free_security+0x310/0x310
[ 989.823667] ? cap_capable+0x1ed/0x3f0
[ 989.828675] ? sysfs_file_ops+0x140/0x140
[ 989.833977] ? threaded_store+0x132/0x220
[ 989.839274] threaded_store+0x132/0x220
[ 989.844379] ? tx_maxrate_store+0x4e0/0x4e0
[ 989.849873] ? sysfs_file_ops+0x140/0x140
[ 989.855172] ? sysfs_file_kobj+0xbd/0x1e0
[ 989.860467] ? sysfs_kf_write+0x65/0x160
[ 989.865670] kernfs_fop_write_iter+0x335/0x510
[ 989.871457] ? kernfs_ops+0xf0/0xf0
[ 989.876169] new_sync_write+0x308/0x6f0
[ 989.881266] ? new_sync_read+0x6f0/0x6f0
[ 989.886467] ? lock_acquire.part.0+0xbc/0x260
[ 989.892155] ? ksys_write+0xff/0x200
[ 989.896968] vfs_write+0x62a/0x980
[ 989.901582] ksys_write+0xff/0x200
[ 989.906195] ? __ia32_sys_read+0xc0/0xc0
[ 989.911395] ? kernfs_fop_llseek+0x160/0x1f0
[ 989.916986] ? rcu_is_watching+0x15/0xd0
[ 989.922185] do_syscall_64+0xf3/0x5e0
[ 989.927094] ? exc_page_fault+0x9e/0xb0
[ 989.932197] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 989.938668] RIP: 0033:0x7f66638c0c5e
[ 989.943476] RSP: 002b:00007ffc4a0b8f90 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 989.952784] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f66638c0c5e
[ 989.961591] RDX: 0000000000000001 RSI: 0000556671d5a110 RDI: 0000000000000007
[ 989.970401] RBP: 00007ffc4a0b8fa0 R08: 0000000000000000 R09: 0000000000000000
[ 989.979211] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f666375be80
[ 989.988018] R13: 0000556671d5a110 R14: 0000000000000007 R15: 00007f6663fc1b98
[ 989.996834]
[ 990.000121] INFO: task python3:5016 is blocked on a mutex likely owned by task python3:3062.
[ 990.010394] task:python3 state:D stack:25312 pid:3062 tgid:3062 ppid:3061 task_flags:0x400100 flags:0x00080802
[ 990.023599] Call Trace:
[ 990.027138]
[ 990.030291] __schedule+0xad9/0x1490
[ 990.035101] ? io_schedule_timeout+0x130/0x130
[ 990.040876] ? find_held_lock+0x2b/0x80
[ 990.045977] ? __try_to_del_timer_sync+0x154/0x1f0
[ 990.052156] schedule+0xd4/0x260
[ 990.056573] schedule_timeout+0x103/0x260
[ 990.061871] ? rcu_is_watching+0x15/0xd0
[ 990.067072] ? hrtimer_nanosleep_restart+0x180/0x180
[ 990.073444] ? hrtimers_cpu_dying+0x250/0x250
[ 990.079137] ? ww_mutex_lock+0x160/0x160
[ 990.084338] msleep+0x1b/0x30
[ 990.088464] napi_set_threaded+0x376/0x410
[ 990.093862] ? napi_resume_irqs+0x1a0/0x1a0
[ 990.099359] netif_set_threaded+0x254/0x400
[ 990.104853] ? sysfs_file_ops+0x140/0x140
[ 990.110150] threaded_store+0x1bb/0x220
[ 990.115252] ? tx_maxrate_store+0x4e0/0x4e0
[ 990.120743] ? sysfs_file_ops+0x140/0x140
[ 990.126039] ? sysfs_file_kobj+0xbd/0x1e0
[ 990.131335] ? sysfs_kf_write+0x65/0x160
[ 990.136536] kernfs_fop_write_iter+0x335/0x510
[ 990.142322] ? kernfs_ops+0xf0/0xf0
[ 990.147034] new_sync_write+0x308/0x6f0
[ 990.152138] ? new_sync_read+0x6f0/0x6f0
[ 990.157338] ? lock_acquire.part.0+0xbc/0x260
[ 990.163015] ? ksys_write+0xff/0x200
[ 990.167826] vfs_write+0x62a/0x980
[ 990.172444] ksys_write+0xff/0x200
[ 990.177060] ? __ia32_sys_read+0xc0/0xc0
[ 990.182261] ? kernfs_fop_llseek+0x160/0x1f0
[ 990.187852] ? rcu_is_watching+0x15/0xd0
[ 990.193053] do_syscall_64+0xf3/0x5e0
[ 990.197960] ? exc_page_fault+0x9e/0xb0
[ 990.203061] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 990.209529] RIP: 0033:0x7f50e7743c5e
[ 990.214336] RSP: 002b:00007ffdd81e90f0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 990.223632] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f50e7743c5e
[ 990.232440] RDX: 0000000000000001 RSI: 000055ecf2d56110 RDI: 0000000000000007
[ 990.241250] RBP: 00007ffdd81e9100 R08: 0000000000000000 R09: 0000000000000000
[ 990.250060] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f50e75dee80
[ 990.258869] R13: 000055ecf2d56110 R14: 0000000000000007 R15: 00007f50e756e480
[ 990.267683]
[ 990.270944] \x0aShowing all locks held in the system:
[ 990.279483] 1 lock held by khungtaskd/185:
[ 990.284875] #0: ffffffffb54ce120 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire.constprop.0+0x7/0x30
[ 990.296358] 4 locks held by python3/3062:
[ 990.301654] #0: ff1100012f0193f8 (sb_writers#4){.+.+}-{0:0}, at: ksys_write+0xff/0x200
[ 990.311448] #1: ff1100013e09be88 (&of->mutex#2){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x247/0x510
[ 990.322412] #2: ff11000121d590f0 (kn->active#127){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x29e/0x510
[ 990.333572] #3: ff11000121dd1d00 (&dev->lock){+.+.}-{4:4}, at: threaded_store+0x132/0x220
[ 990.343670] 4 locks held by python3/5016:
[ 990.348967] #0: ff1100012f0193f8 (sb_writers#4){.+.+}-{0:0}, at: ksys_write+0xff/0x200
[ 990.358760] #1: ff1100013df36e88 (&of->mutex#2){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x247/0x510
[ 990.369727] #2: ff11000121d590f0 (kn->active#127){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x29e/0x510
[ 990.381479] #3: ff11000121dd1d00 (&dev->lock){+.+.}-{4:4}, at: threaded_store+0x132/0x220
[ 990.391580]
[ 990.394046] =============================================\x0a
[ 1063.453567] kworker/u129:2 (187) used greatest stack depth: 21192 bytes left
[ 1112.606227] INFO: task python3:5016 blocked for more than 245 seconds.
[ 1112.614377] Not tainted 7.0.0-rc5-hvlo-g0a794eac6ce8 #1
[ 1112.621629] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1112.631221] task:python3 state:D stack:25312 pid:5016 tgid:5016 ppid:5015 task_flags:0x400100 flags:0x00080000
[ 1112.644429] Call Trace:
[ 1112.647970]
[ 1112.651120] __schedule+0xad9/0x1490
[ 1112.655938] ? io_schedule_timeout+0x130/0x130
[ 1112.661726] ? find_held_lock+0x2b/0x80
[ 1112.666902] ? __lock_release.isra.0+0x59/0x170
[ 1112.672789] schedule+0xd4/0x260
[ 1112.677208] schedule_preempt_disabled+0x18/0x30
[ 1112.683187] __mutex_lock+0xd76/0x1f20
[ 1112.688193] ? threaded_store+0x132/0x220
[ 1112.693494] ? ww_mutex_lock+0x160/0x160
[ 1112.698692] ? selinux_inode_free_security+0x310/0x310
[ 1112.705265] ? cap_capable+0x1ed/0x3f0
[ 1112.710274] ? sysfs_file_ops+0x140/0x140
[ 1112.715573] ? threaded_store+0x132/0x220
[ 1112.720863] threaded_store+0x132/0x220
[ 1112.725967] ? tx_maxrate_store+0x4e0/0x4e0
[ 1112.731461] ? sysfs_file_ops+0x140/0x140
[ 1112.736759] ? sysfs_file_kobj+0xbd/0x1e0
[ 1112.742063] ? sysfs_kf_write+0x65/0x160
[ 1112.747264] kernfs_fop_write_iter+0x335/0x510
[ 1112.753048] ? kernfs_ops+0xf0/0xf0
[ 1112.757759] new_sync_write+0x308/0x6f0
[ 1112.762863] ? new_sync_read+0x6f0/0x6f0
[ 1112.768053] ? lock_acquire.part.0+0xbc/0x260
[ 1112.773742] ? ksys_write+0xff/0x200
[ 1112.778556] vfs_write+0x62a/0x980
[ 1112.783171] ksys_write+0xff/0x200
[ 1112.787775] ? __ia32_sys_read+0xc0/0xc0
[ 1112.792973] ? kernfs_fop_llseek+0x160/0x1f0
[ 1112.798562] ? rcu_is_watching+0x15/0xd0
[ 1112.803758] do_syscall_64+0xf3/0x5e0
[ 1112.808666] ? exc_page_fault+0x9e/0xb0
[ 1112.813768] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 1112.820236] RIP: 0033:0x7f66638c0c5e
[ 1112.825046] RSP: 002b:00007ffc4a0b8f90 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1112.834336] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f66638c0c5e
[ 1112.843145] RDX: 0000000000000001 RSI: 0000556671d5a110 RDI: 0000000000000007
[ 1112.851955] RBP: 00007ffc4a0b8fa0 R08: 0000000000000000 R09: 0000000000000000
[ 1112.860763] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f666375be80
[ 1112.869572] R13: 0000556671d5a110 R14: 0000000000000007 R15: 00007f6663fc1b98
[ 1112.878386]
[ 1112.881688] INFO: task python3:5016 is blocked on a mutex likely owned by task python3:3062.
[ 1112.891964] task:python3 state:D stack:25312 pid:3062 tgid:3062 ppid:3061 task_flags:0x400100 flags:0x00080802
[ 1112.905168] Call Trace:
[ 1112.908710]
[ 1112.911861] __schedule+0xad9/0x1490
[ 1112.916672] ? io_schedule_timeout+0x130/0x130
[ 1112.922449] ? find_held_lock+0x2b/0x80
[ 1112.927552] ? __try_to_del_timer_sync+0x154/0x1f0
[ 1112.933734] schedule+0xd4/0x260
[ 1112.938154] schedule_timeout+0x103/0x260
[ 1112.943451] ? rcu_is_watching+0x15/0xd0
[ 1112.948650] ? hrtimer_nanosleep_restart+0x180/0x180
[ 1112.955023] ? hrtimers_cpu_dying+0x250/0x250
[ 1112.960714] ? ww_mutex_lock+0x160/0x160
[ 1112.965915] msleep+0x1b/0x30
[ 1112.970043] napi_set_threaded+0x376/0x410
[ 1112.975439] ? napi_resume_irqs+0x1a0/0x1a0
[ 1112.980933] netif_set_threaded+0x254/0x400
[ 1112.986429] ? sysfs_file_ops+0x140/0x140
[ 1112.991726] threaded_store+0x1bb/0x220
[ 1112.996829] ? tx_maxrate_store+0x4e0/0x4e0
[ 1113.002312] ? sysfs_file_ops+0x140/0x140
[ 1113.007610] ? sysfs_file_kobj+0xbd/0x1e0
[ 1113.012906] ? sysfs_kf_write+0x65/0x160
[ 1113.018105] kernfs_fop_write_iter+0x335/0x510
[ 1113.023893] ? kernfs_ops+0xf0/0xf0
[ 1113.028607] new_sync_write+0x308/0x6f0
[ 1113.033700] ? new_sync_read+0x6f0/0x6f0
[ 1113.038900] ? lock_acquire.part.0+0xbc/0x260
[ 1113.044588] ? ksys_write+0xff/0x200
[ 1113.049400] vfs_write+0x62a/0x980
[ 1113.054017] ksys_write+0xff/0x200
[ 1113.058630] ? __ia32_sys_read+0xc0/0xc0
[ 1113.063829] ? kernfs_fop_llseek+0x160/0x1f0
[ 1113.069422] ? rcu_is_watching+0x15/0xd0
[ 1113.074622] do_syscall_64+0xf3/0x5e0
[ 1113.079528] ? exc_page_fault+0x9e/0xb0
[ 1113.084632] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 1113.091098] RIP: 0033:0x7f50e7743c5e
[ 1113.095906] RSP: 002b:00007ffdd81e90f0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1113.105202] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f50e7743c5e
[ 1113.114000] RDX: 0000000000000001 RSI: 000055ecf2d56110 RDI: 0000000000000007
[ 1113.122808] RBP: 00007ffdd81e9100 R08: 0000000000000000 R09: 0000000000000000
[ 1113.131608] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f50e75dee80
[ 1113.140413] R13: 000055ecf2d56110 R14: 0000000000000007 R15: 00007f50e756e480
[ 1113.149228]
[ 1113.152494] \x0aShowing all locks held in the system:
[ 1113.161028] 1 lock held by khungtaskd/185:
[ 1113.166422] #0: ffffffffb54ce120 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire.constprop.0+0x7/0x30
[ 1113.177906] 4 locks held by python3/3062:
[ 1113.183203] #0: ff1100012f0193f8 (sb_writers#4){.+.+}-{0:0}, at: ksys_write+0xff/0x200
[ 1113.192995] #1: ff1100013e09be88 (&of->mutex#2){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x247/0x510
[ 1113.203951] #2: ff11000121d590f0 (kn->active#127){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x29e/0x510
[ 1113.215108] #3: ff11000121dd1d00 (&dev->lock){+.+.}-{4:4}, at: threaded_store+0x132/0x220
[ 1113.225207] 4 locks held by python3/5016:
[ 1113.230502] #0: ff1100012f0193f8 (sb_writers#4){.+.+}-{0:0}, at: ksys_write+0xff/0x200
[ 1113.240291] #1: ff1100013df36e88 (&of->mutex#2){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x247/0x510
[ 1113.251254] #2: ff11000121d590f0 (kn->active#127){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x29e/0x510
[ 1113.262416] #3: ff11000121dd1d00 (&dev->lock){+.+.}-{4:4}, at: threaded_store+0x132/0x220
[ 1113.272508]
[ 1113.274973] =============================================\x0a
[ 1235.487573] INFO: task python3:5016 blocked for more than 368 seconds.
[ 1235.495718] Not tainted 7.0.0-rc5-hvlo-g0a794eac6ce8 #1
[ 1235.502968] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1235.512555] task:python3 state:D stack:25312 pid:5016 tgid:5016 ppid:5015 task_flags:0x400100 flags:0x00080002
[ 1235.525761] Call Trace:
[ 1235.529298]
[ 1235.532447] __schedule+0xad9/0x1490
[ 1235.537263] ? io_schedule_timeout+0x130/0x130
[ 1235.543048] ? find_held_lock+0x2b/0x80
[ 1235.548153] ? __lock_release.isra.0+0x59/0x170
[ 1235.554028] schedule+0xd4/0x260
[ 1235.558448] schedule_preempt_disabled+0x18/0x30
[ 1235.564424] __mutex_lock+0xd76/0x1f20
[ 1235.569428] ? threaded_store+0x132/0x220
[ 1235.574726] ? ww_mutex_lock+0x160/0x160
[ 1235.579925] ? selinux_inode_free_security+0x310/0x310
[ 1235.586493] ? cap_capable+0x1ed/0x3f0
[ 1235.591500] ? sysfs_file_ops+0x140/0x140
[ 1235.596798] ? threaded_store+0x132/0x220
[ 1235.602092] threaded_store+0x132/0x220
[ 1235.607197] ? tx_maxrate_store+0x4e0/0x4e0
[ 1235.612692] ? sysfs_file_ops+0x140/0x140
[ 1235.617990] ? sysfs_file_kobj+0xbd/0x1e0
[ 1235.623279] ? sysfs_kf_write+0x65/0x160
[ 1235.628470] kernfs_fop_write_iter+0x335/0x510
[ 1235.634247] ? kernfs_ops+0xf0/0xf0
[ 1235.638950] new_sync_write+0x308/0x6f0
[ 1235.644052] ? new_sync_read+0x6f0/0x6f0
[ 1235.649253] ? lock_acquire.part.0+0xbc/0x260
[ 1235.654938] ? ksys_write+0xff/0x200
[ 1235.659749] vfs_write+0x62a/0x980
[ 1235.664364] ksys_write+0xff/0x200
[ 1235.668976] ? __ia32_sys_read+0xc0/0xc0
[ 1235.674178] ? kernfs_fop_llseek+0x160/0x1f0
[ 1235.679764] ? rcu_is_watching+0x15/0xd0
[ 1235.684964] do_syscall_64+0xf3/0x5e0
[ 1235.689862] ? exc_page_fault+0x9e/0xb0
[ 1235.694962] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 1235.701428] RIP: 0033:0x7f66638c0c5e
[ 1235.706238] RSP: 002b:00007ffc4a0b8f90 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1235.715525] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f66638c0c5e
[ 1235.724333] RDX: 0000000000000001 RSI: 0000556671d5a110 RDI: 0000000000000007
[ 1235.733140] RBP: 00007ffc4a0b8fa0 R08: 0000000000000000 R09: 0000000000000000
[ 1235.741948] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f666375be80
[ 1235.750757] R13: 0000556671d5a110 R14: 0000000000000007 R15: 00007f6663fc1b98
[ 1235.759569]
[ 1235.762838] INFO: task python3:5016 is blocked on a mutex likely owned by task python3:3062.
[ 1235.773111] task:python3 state:D stack:25312 pid:3062 tgid:3062 ppid:3061 task_flags:0x400100 flags:0x00080802
[ 1235.786313] Call Trace:
[ 1235.789852]
[ 1235.793002] __schedule+0xad9/0x1490
[ 1235.797809] ? io_schedule_timeout+0x130/0x130
[ 1235.803591] ? find_held_lock+0x2b/0x80
[ 1235.808695] ? __try_to_del_timer_sync+0x154/0x1f0
[ 1235.814874] schedule+0xd4/0x260
[ 1235.819291] schedule_timeout+0x103/0x260
[ 1235.824587] ? rcu_is_watching+0x15/0xd0
[ 1235.829783] ? hrtimer_nanosleep_restart+0x180/0x180
[ 1235.836155] ? hrtimers_cpu_dying+0x250/0x250
[ 1235.841843] ? ww_mutex_lock+0x160/0x160
[ 1235.847034] msleep+0x1b/0x30
[ 1235.851156] napi_set_threaded+0x376/0x410
[ 1235.856549] ? napi_resume_irqs+0x1a0/0x1a0
[ 1235.862043] netif_set_threaded+0x254/0x400
[ 1235.867537] ? sysfs_file_ops+0x140/0x140
[ 1235.872833] threaded_store+0x1bb/0x220
[ 1235.877937] ? tx_maxrate_store+0x4e0/0x4e0
[ 1235.883428] ? sysfs_file_ops+0x140/0x140
[ 1235.888721] ? sysfs_file_kobj+0xbd/0x1e0
[ 1235.894017] ? sysfs_kf_write+0x65/0x160
[ 1235.899217] kernfs_fop_write_iter+0x335/0x510
[ 1235.904995] ? kernfs_ops+0xf0/0xf0
[ 1235.909703] new_sync_write+0x308/0x6f0
[ 1235.914804] ? new_sync_read+0x6f0/0x6f0
[ 1235.920002] ? lock_acquire.part.0+0xbc/0x260
[ 1235.925686] ? ksys_write+0xff/0x200
[ 1235.930498] vfs_write+0x62a/0x980
[ 1235.935114] ksys_write+0xff/0x200
[ 1235.939728] ? __ia32_sys_read+0xc0/0xc0
[ 1235.944927] ? kernfs_fop_llseek+0x160/0x1f0
[ 1235.950515] ? rcu_is_watching+0x15/0xd0
[ 1235.955715] do_syscall_64+0xf3/0x5e0
[ 1235.960619] ? exc_page_fault+0x9e/0xb0
[ 1235.965718] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 1235.972183] RIP: 0033:0x7f50e7743c5e
[ 1235.976991] RSP: 002b:00007ffdd81e90f0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1235.986284] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f50e7743c5e
[ 1235.995092] RDX: 0000000000000001 RSI: 000055ecf2d56110 RDI: 0000000000000007
[ 1236.003898] RBP: 00007ffdd81e9100 R08: 0000000000000000 R09: 0000000000000000
[ 1236.012705] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f50e75dee80
[ 1236.021510] R13: 000055ecf2d56110 R14: 0000000000000007 R15: 00007f50e756e480
[ 1236.030323]
[ 1236.033583] \x0aShowing all locks held in the system:
[ 1236.042120] 1 lock held by khungtaskd/185:
[ 1236.047512] #0: ffffffffb54ce120 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire.constprop.0+0x7/0x30
[ 1236.058990] 4 locks held by python3/3062:
[ 1236.064283] #0: ff1100012f0193f8 (sb_writers#4){.+.+}-{0:0}, at: ksys_write+0xff/0x200
[ 1236.074071] #1: ff1100013e09be88 (&of->mutex#2){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x247/0x510
[ 1236.085035] #2: ff11000121d590f0 (kn->active#127){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x29e/0x510
[ 1236.096190] #3: ff11000121dd1d00 (&dev->lock){+.+.}-{4:4}, at: threaded_store+0x132/0x220
[ 1236.106285] 4 locks held by python3/5016:
[ 1236.111579] #0: ff1100012f0193f8 (sb_writers#4){.+.+}-{0:0}, at: ksys_write+0xff/0x200
[ 1236.121367] #1: ff1100013df36e88 (&of->mutex#2){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x247/0x510
[ 1236.132329] #2: ff11000121d590f0 (kn->active#127){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x29e/0x510
[ 1236.143487] #3: ff11000121dd1d00 (&dev->lock){+.+.}-{4:4}, at: threaded_store+0x132/0x220
[ 1236.153570]
[ 1236.156037] =============================================\x0a