[19474]     0 19474    18279    12845      33       4        0          1000 syz-executor.2
[19580]     0 19580    18246    10181      28       4        0          1000 syz-executor.2
[19619]     0 19619    18246    10367      29       4        0          1000 syz-executor.2
INFO: rcu_preempt detected stalls on CPUs/tasks:
	Tasks blocked on level-0 rcu_node (CPUs 0-1): P8074
	(detected by 0, t=10503 jiffies, g=68449, c=68448, q=2819)
syz-executor.5  R  running task    26752  8074  15107 0x00000004
Call Trace:
 preempt_schedule_common+0x4f/0xd0 kernel/sched/core.c:3579
 ___preempt_schedule+0x16/0x18
 __raw_spin_unlock include/linux/spinlock_api_smp.h:152 [inline]
 _raw_spin_unlock+0x3b/0x40 kernel/locking/spinlock.c:184
 spin_unlock include/linux/spinlock.h:357 [inline]
 task_unlock include/linux/sched/task.h:136 [inline]
 dump_tasks mm/oom_kill.c:403 [inline]
 dump_header+0x7bb/0x848 mm/oom_kill.c:428
 oom_kill_process.cold+0x10/0xde6 mm/oom_kill.c:861
 out_of_memory mm/oom_kill.c:1084 [inline]
 out_of_memory+0x2d2/0xab0 mm/oom_kill.c:1023
 __alloc_pages_may_oom mm/page_alloc.c:3415 [inline]
 __alloc_pages_slowpath mm/page_alloc.c:4112 [inline]
 __alloc_pages_nodemask+0x1988/0x2370 mm/page_alloc.c:4277
 __alloc_pages include/linux/gfp.h:484 [inline]
 __alloc_pages_node include/linux/gfp.h:497 [inline]
 alloc_pages_node include/linux/gfp.h:511 [inline]
 alloc_thread_stack_node kernel/fork.c:243 [inline]
 dup_task_struct kernel/fork.c:529 [inline]
 copy_process.part.0+0x2c9/0x66c0 kernel/fork.c:1729
 copy_process kernel/fork.c:1679 [inline]
 _do_fork+0x197/0xce0 kernel/fork.c:2220
 do_syscall_64+0x19b/0x520 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45d009
RSP: 002b:00007ffe085fdc98 EFLAGS: 00000202 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007f67ecc57700 RCX: 000000000045d009
RDX: 00007f67ecc579d0 RSI: 00007f67ecc56db0 RDI: 00000000003d0f00
RBP: 00007ffe085fdeb0 R08: 00007f67ecc57700 R09: 00007f67ecc57700
R10: 00007f67ecc579d0 R11: 0000000000000202 R12: 0000000000000000
R13: 00007ffe085fdd4f R14: 00007f67ecc579c0 R15: 000000000075bfd4
syz-executor.5  R  running task    26752  8074  15107 0x00000004
Call Trace:
 preempt_schedule_common+0x4f/0xd0 kernel/sched/core.c:3579
 ___preempt_schedule+0x16/0x18
 __raw_spin_unlock include/linux/spinlock_api_smp.h:152 [inline]
 _raw_spin_unlock+0x3b/0x40 kernel/locking/spinlock.c:184
 spin_unlock include/linux/spinlock.h:357 [inline]
 task_unlock include/linux/sched/task.h:136 [inline]
 dump_tasks mm/oom_kill.c:403 [inline]
 dump_header+0x7bb/0x848 mm/oom_kill.c:428
 oom_kill_process.cold+0x10/0xde6 mm/oom_kill.c:861
 out_of_memory mm/oom_kill.c:1084 [inline]
 out_of_memory+0x2d2/0xab0 mm/oom_kill.c:1023
 __alloc_pages_may_oom mm/page_alloc.c:3415 [inline]
 __alloc_pages_slowpath mm/page_alloc.c:4112 [inline]
 __alloc_pages_nodemask+0x1988/0x2370 mm/page_alloc.c:4277
 __alloc_pages include/linux/gfp.h:484 [inline]
 __alloc_pages_node include/linux/gfp.h:497 [inline]
 alloc_pages_node include/linux/gfp.h:511 [inline]
 alloc_thread_stack_node kernel/fork.c:243 [inline]
 dup_task_struct kernel/fork.c:529 [inline]
 copy_process.part.0+0x2c9/0x66c0 kernel/fork.c:1729
 copy_process kernel/fork.c:1679 [inline]
 _do_fork+0x197/0xce0 kernel/fork.c:2220
 do_syscall_64+0x19b/0x520 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45d009
RSP: 002b:00007ffe085fdc98 EFLAGS: 00000202 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007f67ecc57700 RCX: 000000000045d009
RDX: 00007f67ecc579d0 RSI: 00007f67ecc56db0 RDI: 00000000003d0f00
RBP: 00007ffe085fdeb0 R08: 00007f67ecc57700 R09: 00007f67ecc57700
R10: 00007f67ecc579d0 R11: 0000000000000202 R12: 0000000000000000
R13: 00007ffe085fdd4f R14: 00007f67ecc579c0 R15: 000000000075bfd4
[19659]     0 19659    18279    12845      33       4        0          1000 syz-executor.2
[19758]     0 19758    18246     9990      28       4        0          1000 syz-executor.2
[19800]     0 19800    18246    10592      29       4        0          1000 syz-executor.2
[19858]     0 19858    18279    12845      33       4        0          1000 syz-executor.2
[19942]     0 19942    18246    11749      31       4        0          1000 syz-executor.4
[19979]     0 19979    18246    11092      30       4        0          1000 syz-executor.2
[20086]     0 20086    18246    10851      30       4        0          1000 syz-executor.2
[20314]     0 20314    18246    10355      29       4        0          1000 syz-executor.2
[20331]     0 20331    18246    11146      30       4        0          1000 syz-executor.4
[20354]     0 20354    18246    12843      33       4        0          1000 syz-executor.2
[20556]     0 20556    18279    12845      33       4        0          1000 syz-executor.2
[20653]     0 20653    18246    11183      30       4        0          1000 syz-executor.2
[20688]     0 20688    18246    11177      30       4        0          1000 syz-executor.2