INFO: task kworker/u10:1:86 blocked for more than 430 seconds.
Not tainted 6.12.0-rc6-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u10:1 state:D stack:0 pid:86 tgid:86 ppid:2 flags:0x00000000
Workqueue: events_unbound idle_cull_fn
Call trace:
[<819beefc>] (__schedule) from [<819bfb54>] (__schedule_loop kernel/sched/core.c:6767 [inline])
[<819beefc>] (__schedule) from [<819bfb54>] (schedule+0x2c/0xfc kernel/sched/core.c:6782)
r10:83b51e6c r9:00000002 r8:df98de1c r7:83546000 r6:83b51e64 r5:00000000
r4:83546000
[<819bfb28>] (schedule) from [<819c70f0>] (schedule_timeout+0xe4/0x114 kernel/time/timer.c:2591)
r5:00000000 r4:7fffffff
[<819c700c>] (schedule_timeout) from [<819c0d00>] (do_wait_for_common kernel/sched/completion.c:95 [inline])
[<819c700c>] (schedule_timeout) from [<819c0d00>] (__wait_for_common kernel/sched/completion.c:116 [inline])
[<819c700c>] (schedule_timeout) from [<819c0d00>] (wait_for_common kernel/sched/completion.c:127 [inline])
[<819c700c>] (schedule_timeout) from [<819c0d00>] (wait_for_completion+0x6c/0x144 kernel/sched/completion.c:148)
r7:83546000 r6:83b51e64 r5:83b51e68 r4:7fffffff
[<819c0c94>] (wait_for_completion) from [<8026f808>] (kthread_stop+0x84/0x268 kernel/kthread.c:712)
r10:82c1be05 r9:83546000 r8:82c0f64c r7:df98deb8 r6:83b51e40 r5:82f05400
r4:82f05604
[<8026f784>] (kthread_stop) from [<8026fa00>] (kthread_stop_put+0x14/0x78 kernel/kthread.c:733)
r7:df98deb8 r6:82f46c80 r5:837d1700 r4:82f05400
[<8026f9ec>] (kthread_stop_put) from [<802626f8>] (reap_dying_workers+0x50/0x6c kernel/workqueue.c:2851)
r5:837d1700 r4:82f46c80
[<802626a8>] (reap_dying_workers) from [<80263b34>] (idle_cull_fn+0xdc/0x160 kernel/workqueue.c:2973)
r7:00000100 r6:00000122 r5:df98deb8 r4:df98deb8
[<80263a58>] (idle_cull_fn) from [<802660e0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3229)
r8:02800000 r7:82c0f800 r6:82c1be00 r5:82c0f64c r4:82ec4d80
[<80265f2c>] (process_one_work) from [<80266cc4>] (process_scheduled_works kernel/workqueue.c:3310 [inline])
[<80265f2c>] (process_one_work) from [<80266cc4>] (worker_thread+0x1ec/0x3bc kernel/workqueue.c:3391)
r10:83546000 r9:82ec4dac r8:61c88647 r7:82c0f820 r6:82604d40 r5:82c0f800
r4:82ec4d80
[<80266ad8>] (worker_thread) from [<8026fd40>] (kthread+0x104/0x134 kernel/kthread.c:389)
r10:00000000 r9:df889e78 r8:834f62c0 r7:82ec4d80 r6:80266ad8 r5:83546000
r4:82ec6c40
[<8026fc3c>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdf98dfb0 to 0xdf98dff8)
dfa0: 00000000 00000000 00000000 00000000
dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
dfe0: 00000000 00000000 00000000 00000000 00000013 00000000
r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026fc3c r4:82ec6c40
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 32 Comm: khungtaskd Not tainted 6.12.0-rc6-syzkaller #0
Hardware name: ARM-Versatile Express
Call trace:
[<8199ca38>] (dump_backtrace) from [<8199cb34>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257)
r7:00000000 r6:00000013 r5:60000093 r4:8203dc0c
[<8199cb1c>] (show_stack) from [<819bafe4>] (__dump_stack lib/dump_stack.c:94 [inline])
[<8199cb1c>] (show_stack) from [<819bafe4>] (dump_stack_lvl+0x70/0x7c lib/dump_stack.c:120)
[<819baf74>] (dump_stack_lvl) from [<819bb008>] (dump_stack+0x18/0x1c lib/dump_stack.c:129)
r5:00000001 r4:00000001
[<819baff0>] (dump_stack) from [<81989cf0>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113)
[<81989b90>] (nmi_cpu_backtrace) from [<81989e3c>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62)
r7:00000001 r6:8260c5d0 r5:8261af0c r4:ffffffff
[<81989d0c>] (nmi_trigger_cpumask_backtrace) from [<802103e8>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:851)
r9:0000ad83 r8:828b6cf8 r7:8260c730 r6:00007f4f r5:8261b4c8 r4:848c941c
[<802103d0>] (arch_trigger_cpumask_backtrace) from [<80358324>] (trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline])
[<802103d0>] (arch_trigger_cpumask_backtrace) from [<80358324>] (check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline])
[<802103d0>] (arch_trigger_cpumask_backtrace) from [<80358324>] (watchdog+0x498/0x5b8 kernel/hung_task.c:379)
[<80357e8c>] (watchdog) from [<8026fd40>] (kthread+0x104/0x134 kernel/kthread.c:389)
r10:00000000 r9:df819e58 r8:82e9f340 r7:00000000 r6:80357e8c r5:82ee8c00
r4:82f45ac0
[<8026fc3c>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdf8e1fb0 to 0xdf8e1ff8)
1fa0: 00000000 00000000 00000000 00000000
1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1fe0: 00000000 00000000 00000000 00000000 00000013 00000000
r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026fc3c r4:82f45ac0
Sending NMI from CPU 1 to CPUs 0: