INFO: task kworker/0:0:8 blocked for more than 430 seconds.
      Not tainted 6.11.0-rc7-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:0     state:D stack:0     pid:8     tgid:8     ppid:2      flags:0x00000000
Workqueue: events drain_vmap_area_work
Call trace: 
[<8197ed48>] (__schedule) from [<8197f8e0>] (__schedule_loop kernel/sched/core.c:6606 [inline])
[<8197ed48>] (__schedule) from [<8197f8e0>] (schedule+0x2c/0xfc kernel/sched/core.c:6621)
 r10:82c16015 r9:00000000 r8:82714ab8 r7:00000002 r6:df839e74 r5:82e35400
 r4:82e35400
[<8197f8b4>] (schedule) from [<8197fc94>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6678)
 r5:82e35400 r4:82714ab4
[<8197fc7c>] (schedule_preempt_disabled) from [<8198276c>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline])
[<8197fc7c>] (schedule_preempt_disabled) from [<8198276c>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752)
[<81982484>] (__mutex_lock.constprop.0) from [<81983038>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040)
 r10:82c16015 r9:82e35400 r8:00800000 r7:dddd0000 r6:82c16000 r5:82714a9c
 r4:82714ab4
[<81983024>] (__mutex_lock_slowpath) from [<81983078>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286)
[<8198303c>] (mutex_lock) from [<804a6634>] (drain_vmap_area_work+0x18/0x38 mm/vmalloc.c:2326)
[<804a661c>] (drain_vmap_area_work) from [<80265f08>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3231)
 r5:82714a9c r4:82cb5080
[<80265d54>] (process_one_work) from [<80266aec>] (process_scheduled_works kernel/workqueue.c:3312 [inline])
[<80265d54>] (process_one_work) from [<80266aec>] (worker_thread+0x1ec/0x3b4 kernel/workqueue.c:3389)
 r10:82e35400 r9:82cb50ac r8:61c88647 r7:dddd0020 r6:82604d40 r5:dddd0000
 r4:82cb5080
[<80266900>] (worker_thread) from [<8026fb04>] (kthread+0x104/0x134 kernel/kthread.c:389)
 r10:00000000 r9:df819e48 r8:82cb48c0 r7:82cb5080 r6:80266900 r5:82e35400
 r4:82cb4180
[<8026fa00>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdf839fb0 to 0xdf839ff8)
9fa0:                                     00000000 00000000 00000000 00000000
9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
9fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026fa00 r4:82cb4180
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 32 Comm: khungtaskd Not tainted 6.11.0-rc7-syzkaller #0
Hardware name: ARM-Versatile Express
Call trace: 
[<8195d178>] (dump_backtrace) from [<8195d274>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257)
 r7:00000000 r6:00000013 r5:60000093 r4:8200ca20
[<8195d25c>] (show_stack) from [<8197afb0>] (__dump_stack lib/dump_stack.c:93 [inline])
[<8195d25c>] (show_stack) from [<8197afb0>] (dump_stack_lvl+0x70/0x7c lib/dump_stack.c:119)
[<8197af40>] (dump_stack_lvl) from [<8197afd4>] (dump_stack+0x18/0x1c lib/dump_stack.c:128)
 r5:00000001 r4:00000001
[<8197afbc>] (dump_stack) from [<8194a468>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113)
[<8194a308>] (nmi_cpu_backtrace) from [<8194a5b4>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62)
 r7:00000001 r6:8260c5d0 r5:8261a88c r4:ffffffff
[<8194a484>] (nmi_trigger_cpumask_backtrace) from [<802103c8>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:851)
 r9:00015c00 r8:828b3130 r7:8260c734 r6:00007f24 r5:8261ae48 r4:8408511c
[<802103b0>] (arch_trigger_cpumask_backtrace) from [<80350e30>] (trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline])
[<802103b0>] (arch_trigger_cpumask_backtrace) from [<80350e30>] (check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline])
[<802103b0>] (arch_trigger_cpumask_backtrace) from [<80350e30>] (watchdog+0x498/0x5b8 kernel/hung_task.c:379)
[<80350998>] (watchdog) from [<8026fb04>] (kthread+0x104/0x134 kernel/kthread.c:389)
 r10:00000000 r9:df819e58 r8:82f23880 r7:00000000 r6:80350998 r5:82e59800
 r4:82ec6840
[<8026fa00>] (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 r5:8026fa00 r4:82ec6840
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 13121 Comm: syz.1.3363 Not tainted 6.11.0-rc7-syzkaller #0
Hardware name: ARM-Versatile Express
PC is at 0x18a6c
LR is at 0x18a6c
pc : [<00018a6c>]    lr : [<00018a6c>]    psr: 20000010
sp : 200002d0  ip : 200002d0  fp : 76bb50bc
r10: 003d0f00  r9 : 00006364  r8 : 00000000
r7 : 00000000  r6 : 00000000  r5 : 00000000  r4 : 00000000
r3 : 00000000  r2 : 000001e4  r1 : 00000004  r0 : ffffffff
Flags: nzCv  IRQs on  FIQs on  Mode USER_32  ISA ARM  Segment user
Control: 30c5387d  Table: 84ce2c00  DAC: fffffffd
Call trace: invalid frame pointer 0x76bb50bc