[ 758.064586] nipa-hw-worker: drivers/net:napi_threaded.py: timed out
[ 758.067125] nipa-hw-worker: [5/41] Retrying drivers/net:napi_threaded.py
[ 758.230147] kselftest: Running tests in drivers/net
[ 989.732584] INFO: task python3:5149 blocked for more than 122 seconds.
[ 989.740804] Not tainted 7.0.0-rc5-ymsy-g177ae0ac926e #1
[ 989.748052] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 989.757641] task:python3 state:D stack:25312 pid:5149 tgid:5149 ppid:5148 task_flags:0x400100 flags:0x00080000
[ 989.770847] Call Trace:
[ 989.774386]
[ 989.777538] __schedule+0xad9/0x1490
[ 989.782353] ? io_schedule_timeout+0x130/0x130
[ 989.788138] ? find_held_lock+0x2b/0x80
[ 989.793243] ? __lock_release.isra.0+0x59/0x170
[ 989.799117] schedule+0xd4/0x260
[ 989.803536] schedule_preempt_disabled+0x18/0x30
[ 989.809508] __mutex_lock+0xd76/0x1f20
[ 989.814515] ? threaded_store+0x132/0x220
[ 989.819812] ? ww_mutex_lock+0x160/0x160
[ 989.825009] ? selinux_inode_free_security+0x310/0x310
[ 989.831577] ? cap_capable+0x1ed/0x3f0
[ 989.836584] ? sysfs_file_ops+0x140/0x140
[ 989.841882] ? threaded_store+0x132/0x220
[ 989.847175] threaded_store+0x132/0x220
[ 989.852278] ? tx_maxrate_store+0x4e0/0x4e0
[ 989.857769] ? sysfs_file_ops+0x140/0x140
[ 989.863066] ? sysfs_file_kobj+0xbd/0x1e0
[ 989.868361] ? sysfs_kf_write+0x65/0x160
[ 989.873561] kernfs_fop_write_iter+0x335/0x510
[ 989.879337] ? kernfs_ops+0xf0/0xf0
[ 989.884048] new_sync_write+0x308/0x6f0
[ 989.889149] ? new_sync_read+0x6f0/0x6f0
[ 989.894349] ? lock_acquire.part.0+0xbc/0x260
[ 989.900034] ? ksys_write+0xff/0x200
[ 989.904843] vfs_write+0x62a/0x980
[ 989.909456] ksys_write+0xff/0x200
[ 989.914070] ? __ia32_sys_read+0xc0/0xc0
[ 989.919265] ? kernfs_fop_llseek+0x160/0x1f0
[ 989.924852] ? rcu_is_watching+0x15/0xd0
[ 989.930051] do_syscall_64+0xf3/0x5e0
[ 989.934956] ? exc_page_fault+0x9e/0xb0
[ 989.940056] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 989.946525] RIP: 0033:0x7f7aa6133c5e
[ 989.951335] RSP: 002b:00007ffd41b77310 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 989.960632] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f7aa6133c5e
[ 989.969428] RDX: 0000000000000001 RSI: 0000560edadea760 RDI: 0000000000000007
[ 989.978236] RBP: 00007ffd41b77320 R08: 0000000000000000 R09: 0000000000000000
[ 989.987034] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f7aa5fcee80
[ 989.995839] R13: 0000560edadea760 R14: 0000000000000007 R15: 00007f7aa6834b98
[ 990.004650]
[ 990.007921] INFO: task python3:5149 is blocked on a mutex likely owned by task python3:3136.
[ 990.018198] task:python3 state:D stack:25312 pid:3136 tgid:3136 ppid:3135 task_flags:0x400100 flags:0x00080802
[ 990.031397] Call Trace:
[ 990.034935]
[ 990.038082] __schedule+0xad9/0x1490
[ 990.042893] ? io_schedule_timeout+0x130/0x130
[ 990.048673] ? find_held_lock+0x2b/0x80
[ 990.053774] ? __try_to_del_timer_sync+0x154/0x1f0
[ 990.059952] schedule+0xd4/0x260
[ 990.064371] schedule_timeout+0x103/0x260
[ 990.069667] ? rcu_is_watching+0x15/0xd0
[ 990.074864] ? hrtimer_nanosleep_restart+0x180/0x180
[ 990.081235] ? hrtimers_cpu_dying+0x250/0x250
[ 990.086927] ? ww_mutex_lock+0x160/0x160
[ 990.092128] msleep+0x1b/0x30
[ 990.096253] napi_set_threaded+0x376/0x410
[ 990.101645] ? napi_resume_irqs+0x1a0/0x1a0
[ 990.107138] netif_set_threaded+0x254/0x400
[ 990.112631] ? sysfs_file_ops+0x140/0x140
[ 990.117926] threaded_store+0x1bb/0x220
[ 990.123029] ? tx_maxrate_store+0x4e0/0x4e0
[ 990.128510] ? sysfs_file_ops+0x140/0x140
[ 990.133803] ? sysfs_file_kobj+0xbd/0x1e0
[ 990.139098] ? sysfs_kf_write+0x65/0x160
[ 990.144299] kernfs_fop_write_iter+0x335/0x510
[ 990.150085] ? kernfs_ops+0xf0/0xf0
[ 990.154793] new_sync_write+0x308/0x6f0
[ 990.159894] ? new_sync_read+0x6f0/0x6f0
[ 990.165095] ? lock_acquire.part.0+0xbc/0x260
[ 990.170782] ? ksys_write+0xff/0x200
[ 990.175593] vfs_write+0x62a/0x980
[ 990.180208] ksys_write+0xff/0x200
[ 990.184820] ? __ia32_sys_read+0xc0/0xc0
[ 990.190017] ? kernfs_fop_llseek+0x160/0x1f0
[ 990.195605] ? rcu_is_watching+0x15/0xd0
[ 990.200805] do_syscall_64+0xf3/0x5e0
[ 990.205708] ? irq_exit_rcu+0x39/0xf0
[ 990.210617] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 990.217074] RIP: 0033:0x7f3ab8339c5e
[ 990.221882] RSP: 002b:00007ffe75a00700 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 990.231179] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f3ab8339c5e
[ 990.239988] RDX: 0000000000000001 RSI: 000055a7f74d0760 RDI: 0000000000000007
[ 990.248792] RBP: 00007ffe75a00710 R08: 0000000000000000 R09: 0000000000000000
[ 990.257598] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f3ab81d4e80
[ 990.266402] R13: 000055a7f74d0760 R14: 0000000000000007 R15: 00007f3ab8162480
[ 990.275214]
[ 990.278471] \x0aShowing all locks held in the system:
[ 990.287005] 1 lock held by khungtaskd/185:
[ 990.292397] #0: ffffffff8a8ce120 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire.constprop.0+0x7/0x30
[ 990.303882] 4 locks held by python3/3136:
[ 990.309174] #0: ff1100012d9f93f8 (sb_writers#4){.+.+}-{0:0}, at: ksys_write+0xff/0x200
[ 990.318963] #1: ff1100013ca1d688 (&of->mutex#2){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x247/0x510
[ 990.329924] #2: ff110001205510f0 (kn->active#127){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x29e/0x510
[ 990.341071] #3: ff110001205c9d00 (&dev->lock){+.+.}-{4:4}, at: threaded_store+0x132/0x220
[ 990.351164] 4 locks held by python3/5149:
[ 990.356458] #0: ff1100012d9f93f8 (sb_writers#4){.+.+}-{0:0}, at: ksys_write+0xff/0x200
[ 990.366248] #1: ff110001be676e88 (&of->mutex#2){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x247/0x510
[ 990.377209] #2: ff110001205510f0 (kn->active#127){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x29e/0x510
[ 990.388369] #3: ff110001205c9d00 (&dev->lock){+.+.}-{4:4}, at: threaded_store+0x132/0x220
[ 990.398458]
[ 990.400923] =============================================\x0a
[ 1112.613805] INFO: task python3:5149 blocked for more than 245 seconds.
[ 1112.621951] Not tainted 7.0.0-rc5-ymsy-g177ae0ac926e #1
[ 1112.629203] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1112.638794] task:python3 state:D stack:25312 pid:5149 tgid:5149 ppid:5148 task_flags:0x400100 flags:0x00080000
[ 1112.651997] Call Trace:
[ 1112.655536]
[ 1112.658689] __schedule+0xad9/0x1490
[ 1112.663503] ? io_schedule_timeout+0x130/0x130
[ 1112.669288] ? find_held_lock+0x2b/0x80
[ 1112.674392] ? __lock_release.isra.0+0x59/0x170
[ 1112.680275] schedule+0xd4/0x260
[ 1112.684682] schedule_preempt_disabled+0x18/0x30
[ 1112.690660] __mutex_lock+0xd76/0x1f20
[ 1112.695664] ? threaded_store+0x132/0x220
[ 1112.700962] ? ww_mutex_lock+0x160/0x160
[ 1112.706162] ? selinux_inode_free_security+0x310/0x310
[ 1112.712731] ? cap_capable+0x1ed/0x3f0
[ 1112.717738] ? sysfs_file_ops+0x140/0x140
[ 1112.723038] ? threaded_store+0x132/0x220
[ 1112.728333] threaded_store+0x132/0x220
[ 1112.733438] ? tx_maxrate_store+0x4e0/0x4e0
[ 1112.738932] ? sysfs_file_ops+0x140/0x140
[ 1112.744225] ? sysfs_file_kobj+0xbd/0x1e0
[ 1112.749521] ? sysfs_kf_write+0x65/0x160
[ 1112.754721] kernfs_fop_write_iter+0x335/0x510
[ 1112.760507] ? kernfs_ops+0xf0/0xf0
[ 1112.765219] new_sync_write+0x308/0x6f0
[ 1112.770312] ? new_sync_read+0x6f0/0x6f0
[ 1112.775514] ? lock_acquire.part.0+0xbc/0x260
[ 1112.781200] ? ksys_write+0xff/0x200
[ 1112.786011] vfs_write+0x62a/0x980
[ 1112.790632] ksys_write+0xff/0x200
[ 1112.795244] ? __ia32_sys_read+0xc0/0xc0
[ 1112.800441] ? kernfs_fop_llseek+0x160/0x1f0
[ 1112.806033] ? rcu_is_watching+0x15/0xd0
[ 1112.811233] do_syscall_64+0xf3/0x5e0
[ 1112.816138] ? exc_page_fault+0x9e/0xb0
[ 1112.821240] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 1112.827706] RIP: 0033:0x7f7aa6133c5e
[ 1112.832512] RSP: 002b:00007ffd41b77310 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1112.841810] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f7aa6133c5e
[ 1112.850617] RDX: 0000000000000001 RSI: 0000560edadea760 RDI: 0000000000000007
[ 1112.859422] RBP: 00007ffd41b77320 R08: 0000000000000000 R09: 0000000000000000
[ 1112.868229] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f7aa5fcee80
[ 1112.877036] R13: 0000560edadea760 R14: 0000000000000007 R15: 00007f7aa6834b98
[ 1112.885847]
[ 1112.889113] INFO: task python3:5149 is blocked on a mutex likely owned by task python3:3136.
[ 1112.899382] task:python3 state:D stack:25312 pid:3136 tgid:3136 ppid:3135 task_flags:0x400100 flags:0x00080802
[ 1112.912582] Call Trace:
[ 1112.916120]
[ 1112.919267] __schedule+0xad9/0x1490
[ 1112.924076] ? io_schedule_timeout+0x130/0x130
[ 1112.929861] ? find_held_lock+0x2b/0x80
[ 1112.934961] ? __try_to_del_timer_sync+0x154/0x1f0
[ 1112.941141] schedule+0xd4/0x260
[ 1112.945561] schedule_timeout+0x103/0x260
[ 1112.950857] ? rcu_is_watching+0x15/0xd0
[ 1112.956054] ? hrtimer_nanosleep_restart+0x180/0x180
[ 1112.962426] ? hrtimers_cpu_dying+0x250/0x250
[ 1112.968114] ? ww_mutex_lock+0x160/0x160
[ 1112.973314] msleep+0x1b/0x30
[ 1112.977437] napi_set_threaded+0x376/0x410
[ 1112.982830] ? napi_resume_irqs+0x1a0/0x1a0
[ 1112.988324] netif_set_threaded+0x254/0x400
[ 1112.993815] ? sysfs_file_ops+0x140/0x140
[ 1112.999111] threaded_store+0x1bb/0x220
[ 1113.004211] ? tx_maxrate_store+0x4e0/0x4e0
[ 1113.009703] ? sysfs_file_ops+0x140/0x140
[ 1113.014997] ? sysfs_file_kobj+0xbd/0x1e0
[ 1113.020292] ? sysfs_kf_write+0x65/0x160
[ 1113.025490] kernfs_fop_write_iter+0x335/0x510
[ 1113.031275] ? kernfs_ops+0xf0/0xf0
[ 1113.035975] new_sync_write+0x308/0x6f0
[ 1113.041078] ? new_sync_read+0x6f0/0x6f0
[ 1113.046268] ? lock_acquire.part.0+0xbc/0x260
[ 1113.051955] ? ksys_write+0xff/0x200
[ 1113.056767] vfs_write+0x62a/0x980
[ 1113.061382] ksys_write+0xff/0x200
[ 1113.065987] ? __ia32_sys_read+0xc0/0xc0
[ 1113.071185] ? kernfs_fop_llseek+0x160/0x1f0
[ 1113.076774] ? rcu_is_watching+0x15/0xd0
[ 1113.081974] do_syscall_64+0xf3/0x5e0
[ 1113.086880] ? irq_exit_rcu+0x39/0xf0
[ 1113.091785] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 1113.098250] RIP: 0033:0x7f3ab8339c5e
[ 1113.103056] RSP: 002b:00007ffe75a00700 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1113.112351] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f3ab8339c5e
[ 1113.121155] RDX: 0000000000000001 RSI: 000055a7f74d0760 RDI: 0000000000000007
[ 1113.129961] RBP: 00007ffe75a00710 R08: 0000000000000000 R09: 0000000000000000
[ 1113.138768] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f3ab81d4e80
[ 1113.147574] R13: 000055a7f74d0760 R14: 0000000000000007 R15: 00007f3ab8162480
[ 1113.156385]
[ 1113.159653] \x0aShowing all locks held in the system:
[ 1113.168189] 1 lock held by khungtaskd/185:
[ 1113.173582] #0: ffffffff8a8ce120 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire.constprop.0+0x7/0x30
[ 1113.185055] 2 locks held by systemd-journal/805:
[ 1113.191041] 4 locks held by python3/3136:
[ 1113.196334] #0: ff1100012d9f93f8 (sb_writers#4){.+.+}-{0:0}, at: ksys_write+0xff/0x200
[ 1113.206125] #1: ff1100013ca1d688 (&of->mutex#2){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x247/0x510
[ 1113.217077] #2: ff110001205510f0 (kn->active#127){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x29e/0x510
[ 1113.228231] #3: ff110001205c9d00 (&dev->lock){+.+.}-{4:4}, at: threaded_store+0x132/0x220
[ 1113.238331] 4 locks held by python3/5149:
[ 1113.243617] #0: ff1100012d9f93f8 (sb_writers#4){.+.+}-{0:0}, at: ksys_write+0xff/0x200
[ 1113.253405] #1: ff110001be676e88 (&of->mutex#2){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x247/0x510
[ 1113.264365] #2: ff110001205510f0 (kn->active#127){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x29e/0x510
[ 1113.275522] #3: ff110001205c9d00 (&dev->lock){+.+.}-{4:4}, at: threaded_store+0x132/0x220
[ 1113.285608]
[ 1113.288075] =============================================\x0a
[ 1116.709877] kworker/u130:5 (534) used greatest stack depth: 21688 bytes left
[ 1235.496013] INFO: task python3:5149 blocked for more than 368 seconds.
[ 1235.504159] Not tainted 7.0.0-rc5-ymsy-g177ae0ac926e #1
[ 1235.511409] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1235.520996] task:python3 state:D stack:25312 pid:5149 tgid:5149 ppid:5148 task_flags:0x400100 flags:0x00080002
[ 1235.534205] Call Trace:
[ 1235.537746]
[ 1235.540895] __schedule+0xad9/0x1490
[ 1235.545714] ? io_schedule_timeout+0x130/0x130
[ 1235.551502] ? find_held_lock+0x2b/0x80
[ 1235.556610] ? __lock_release.isra.0+0x59/0x170
[ 1235.562495] schedule+0xd4/0x260
[ 1235.566914] schedule_preempt_disabled+0x18/0x30
[ 1235.572893] __mutex_lock+0xd76/0x1f20
[ 1235.577902] ? threaded_store+0x132/0x220
[ 1235.583200] ? ww_mutex_lock+0x160/0x160
[ 1235.588401] ? selinux_inode_free_security+0x310/0x310
[ 1235.594971] ? cap_capable+0x1ed/0x3f0
[ 1235.599980] ? sysfs_file_ops+0x140/0x140
[ 1235.605280] ? threaded_store+0x132/0x220
[ 1235.610576] threaded_store+0x132/0x220
[ 1235.615678] ? tx_maxrate_store+0x4e0/0x4e0
[ 1235.621176] ? sysfs_file_ops+0x140/0x140
[ 1235.626476] ? sysfs_file_kobj+0xbd/0x1e0
[ 1235.631772] ? sysfs_kf_write+0x65/0x160
[ 1235.636974] kernfs_fop_write_iter+0x335/0x510
[ 1235.642761] ? kernfs_ops+0xf0/0xf0
[ 1235.647474] new_sync_write+0x308/0x6f0
[ 1235.652581] ? new_sync_read+0x6f0/0x6f0
[ 1235.657783] ? lock_acquire.part.0+0xbc/0x260
[ 1235.663470] ? ksys_write+0xff/0x200
[ 1235.668281] vfs_write+0x62a/0x980
[ 1235.672896] ksys_write+0xff/0x200
[ 1235.677501] ? __ia32_sys_read+0xc0/0xc0
[ 1235.682699] ? kernfs_fop_llseek+0x160/0x1f0
[ 1235.688291] ? rcu_is_watching+0x15/0xd0
[ 1235.693496] do_syscall_64+0xf3/0x5e0
[ 1235.698401] ? exc_page_fault+0x9e/0xb0
[ 1235.703504] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 1235.709974] RIP: 0033:0x7f7aa6133c5e
[ 1235.714786] RSP: 002b:00007ffd41b77310 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1235.724083] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f7aa6133c5e
[ 1235.732885] RDX: 0000000000000001 RSI: 0000560edadea760 RDI: 0000000000000007
[ 1235.741695] RBP: 00007ffd41b77320 R08: 0000000000000000 R09: 0000000000000000
[ 1235.750503] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f7aa5fcee80
[ 1235.759313] R13: 0000560edadea760 R14: 0000000000000007 R15: 00007f7aa6834b98
[ 1235.768130]
[ 1235.771398] INFO: task python3:5149 is blocked on a mutex likely owned by task python3:3136.
[ 1235.781674] task:python3 state:D stack:25312 pid:3136 tgid:3136 ppid:3135 task_flags:0x400100 flags:0x00080802
[ 1235.794876] Call Trace:
[ 1235.798414]
[ 1235.801565] __schedule+0xad9/0x1490
[ 1235.806369] ? io_schedule_timeout+0x130/0x130
[ 1235.812154] ? find_held_lock+0x2b/0x80
[ 1235.817259] ? __try_to_del_timer_sync+0x154/0x1f0
[ 1235.823438] schedule+0xd4/0x260
[ 1235.827857] schedule_timeout+0x103/0x260
[ 1235.833154] ? rcu_is_watching+0x15/0xd0
[ 1235.838355] ? hrtimer_nanosleep_restart+0x180/0x180
[ 1235.844725] ? hrtimers_cpu_dying+0x250/0x250
[ 1235.850417] ? ww_mutex_lock+0x160/0x160
[ 1235.855618] msleep+0x1b/0x30
[ 1235.859744] napi_set_threaded+0x376/0x410
[ 1235.865141] ? napi_resume_irqs+0x1a0/0x1a0
[ 1235.870638] netif_set_threaded+0x254/0x400
[ 1235.876131] ? sysfs_file_ops+0x140/0x140
[ 1235.881427] threaded_store+0x1bb/0x220
[ 1235.886529] ? tx_maxrate_store+0x4e0/0x4e0
[ 1235.892014] ? sysfs_file_ops+0x140/0x140
[ 1235.897311] ? sysfs_file_kobj+0xbd/0x1e0
[ 1235.902601] ? sysfs_kf_write+0x65/0x160
[ 1235.907802] kernfs_fop_write_iter+0x335/0x510
[ 1235.913578] ? kernfs_ops+0xf0/0xf0
[ 1235.918291] new_sync_write+0x308/0x6f0
[ 1235.923384] ? new_sync_read+0x6f0/0x6f0
[ 1235.928586] ? lock_acquire.part.0+0xbc/0x260
[ 1235.934272] ? ksys_write+0xff/0x200
[ 1235.939084] vfs_write+0x62a/0x980
[ 1235.943699] ksys_write+0xff/0x200
[ 1235.948316] ? __ia32_sys_read+0xc0/0xc0
[ 1235.953517] ? kernfs_fop_llseek+0x160/0x1f0
[ 1235.959109] ? rcu_is_watching+0x15/0xd0
[ 1235.964312] do_syscall_64+0xf3/0x5e0
[ 1235.969220] ? irq_exit_rcu+0x39/0xf0
[ 1235.974128] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 1235.980597] RIP: 0033:0x7f3ab8339c5e
[ 1235.985405] RSP: 002b:00007ffe75a00700 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1235.994701] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f3ab8339c5e
[ 1236.003510] RDX: 0000000000000001 RSI: 000055a7f74d0760 RDI: 0000000000000007
[ 1236.012318] RBP: 00007ffe75a00710 R08: 0000000000000000 R09: 0000000000000000
[ 1236.021119] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f3ab81d4e80
[ 1236.029928] R13: 000055a7f74d0760 R14: 0000000000000007 R15: 00007f3ab8162480
[ 1236.038742]
[ 1236.042008] \x0aShowing all locks held in the system:
[ 1236.050546] 1 lock held by khungtaskd/185:
[ 1236.055938] #0: ffffffff8a8ce120 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire.constprop.0+0x7/0x30
[ 1236.067419] 4 locks held by python3/3136:
[ 1236.072715] #0: ff1100012d9f93f8 (sb_writers#4){.+.+}-{0:0}, at: ksys_write+0xff/0x200
[ 1236.082506] #1: ff1100013ca1d688 (&of->mutex#2){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x247/0x510
[ 1236.093463] #2: ff110001205510f0 (kn->active#127){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x29e/0x510
[ 1236.104620] #3: ff110001205c9d00 (&dev->lock){+.+.}-{4:4}, at: threaded_store+0x132/0x220
[ 1236.114703] 4 locks held by python3/5149:
[ 1236.120000] #0: ff1100012d9f93f8 (sb_writers#4){.+.+}-{0:0}, at: ksys_write+0xff/0x200
[ 1236.129789] #1: ff110001be676e88 (&of->mutex#2){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x247/0x510
[ 1236.140749] #2: ff110001205510f0 (kn->active#127){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x29e/0x510
[ 1236.151906] #3: ff110001205c9d00 (&dev->lock){+.+.}-{4:4}, at: threaded_store+0x132/0x220
[ 1236.161997]
[ 1236.164465] =============================================\x0a