rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-0): P5505/1:b..l
rcu: (detected by 0, t=11669 jiffies, g=27465, q=1882 ncpus=1)
task:udevd state:R running task stack:26440 pid:5505 tgid:5505 ppid:4754 task_flags:0x40014c flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5357 [inline]
__schedule+0x1798/0x4cc0 kernel/sched/core.c:6961
preempt_schedule_irq+0xb5/0x150 kernel/sched/core.c:7288
irqentry_exit+0x6f/0x90 kernel/entry/common.c:197
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:unwind_next_frame+0x4bf/0x2390 arch/x86/kernel/unwind_orc.c:512
Code: fe ff ff 4d 8d 7e 34 4c 89 f8 48 c1 e8 03 0f b6 04 28 84 c0 0f 85 2a 19 00 00 41 c6 07 01 48 c7 c2 a0 43 a8 8b 4c 8b 6c 24 50 <48> 8d 72 04 4c 8d 62 05 48 89 f0 48 c1 e8 03 48 89 44 24 40 0f b6
RSP: 0018:ffffc9000298f2b8 EFLAGS: 00000202
RAX: 0000000000000002 RBX: ffffffff8ffd4e10 RCX: ffffffff8ffd4e14
RDX: ffffffff908c3a6e RSI: ffffffff908c3a6e RDI: ffffffff8c034d20
RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffffff8172d195
R10: ffffc9000298f3d8 R11: ffffffff81ac4b00 R12: 1ffff92000531e71
R13: ffffc9000298f3d8 R14: ffffc9000298f388 R15: ffffffff8172d195
arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3e/0x80 mm/kasan/common.c:68
unpoison_slab_object mm/kasan/common.c:330 [inline]
__kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:356
kasan_slab_alloc include/linux/kasan.h:250 [inline]
slab_post_alloc_hook mm/slub.c:4191 [inline]
slab_alloc_node mm/slub.c:4240 [inline]
kmem_cache_alloc_noprof+0x1c1/0x3c0 mm/slub.c:4247
kmem_alloc_batch lib/debugobjects.c:371 [inline]
fill_pool+0x100/0x570 lib/debugobjects.c:403
debug_objects_fill_pool lib/debugobjects.c:725 [inline]
debug_object_activate+0x383/0x420 lib/debugobjects.c:814
debug_rcu_head_queue kernel/rcu/rcu.h:236 [inline]
__call_rcu_common kernel/rcu/tree.c:3108 [inline]
call_rcu+0xaa/0x9c0 kernel/rcu/tree.c:3243
destroy_inode fs/inode.c:401 [inline]
evict+0x847/0x9c0 fs/inode.c:834
__dentry_kill+0x209/0x660 fs/dcache.c:669
dput+0x19f/0x2b0 fs/dcache.c:911
__fput+0x68e/0xa70 fs/file_table.c:476
task_work_run+0x1d1/0x260 kernel/task_work.c:227
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0x6b5/0x2300 kernel/exit.c:961
do_group_exit+0x21c/0x2d0 kernel/exit.c:1102
__do_sys_exit_group kernel/exit.c:1113 [inline]
__se_sys_exit_group kernel/exit.c:1111 [inline]
__x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1111
x64_sys_call+0x21f7/0x2200 arch/x86/include/generated/asm/syscalls_64.h:232
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f589aaf16c5
RSP: 002b:00007ffda1f74198 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000562361c51f50 RCX: 00007f589aaf16c5
RDX: 00000000000000e7 RSI: fffffffffffffe68 RDI: 0000000000000000
RBP: 0000562361b3c910 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffda1f741e0 R14: 0000000000000000 R15: 0000000000000000
rcu: rcu_preempt kthread timer wakeup didn't happen for 3851 jiffies! g27465 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: Possible timer handling issue on cpu=0 timer-softirq=17093
rcu: rcu_preempt kthread starved for 3852 jiffies! g27465 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0
rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt state:I stack:27432 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5357 [inline]
__schedule+0x1798/0x4cc0 kernel/sched/core.c:6961
__schedule_loop kernel/sched/core.c:7043 [inline]
schedule+0x165/0x360 kernel/sched/core.c:7058
schedule_timeout+0x12b/0x270 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x301/0x1540 kernel/rcu/tree.c:2083
rcu_gp_kthread+0x99/0x390 kernel/rcu/tree.c:2285
kthread+0x70e/0x8a0 kernel/kthread.c:463
ret_from_fork+0x436/0x7d0 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 UID: 0 PID: 5506 Comm: kworker/0:5 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: events e1000_watchdog_task
RIP: 0010:variable_ffs arch/x86/include/asm/bitops.h:318 [inline]
RIP: 0010:handle_softirqs+0x1b0/0x870 kernel/softirq.c:567
Code: 89 64 24 30 0f b7 db 48 c7 c7 e0 a9 a9 8b e8 87 56 f7 09 65 66 c7 05 35 64 3c 11 00 00 e8 08 7c 42 00 fb 49 c7 c7 c0 c0 00 8e ff ff ff ff 0f bc c3 41 89 c5 41 ff c5 0f 84 c2 03 00 00 89 5c
RSP: 0018:ffffc90000007e40 EFLAGS: 00000286
RAX: 36df30910b2d6a00 RBX: 0000000000000008 RCX: 36df30910b2d6a00
RDX: 0000000000000002 RSI: ffffffff8dbbc832 RDI: ffffffff8c034d80
RBP: ffffc90000007f50 R08: ffffffff8fc3c537 R09: 1ffffffff1f878a6
R10: dffffc0000000000 R11: fffffbfff1f878a7 R12: 000000000000000a
R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff8e00c0c0
FS: 0000000000000000(0000) GS:ffff88808d00a000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004713e0 CR3: 000000000e136000 CR4: 0000000000352ef0
Call Trace:
__do_softirq kernel/softirq.c:613 [inline]
invoke_softirq kernel/softirq.c:453 [inline]
__irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680
irq_exit_rcu+0x9/0x30 kernel/softirq.c:696
common_interrupt+0xbb/0xe0 arch/x86/kernel/irq.c:318
asm_common_interrupt+0x26/0x40 arch/x86/include/asm/idtentry.h:693
RIP: 0010:writel arch/x86/include/asm/io.h:67 [inline]
RIP: 0010:__ew32 drivers/net/ethernet/intel/e1000e/netdev.c:136 [inline]
RIP: 0010:e1000_watchdog_task+0x1268/0x23c0 drivers/net/ethernet/intel/e1000e/netdev.c:5411
Code: 00 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 08 4c 89 f7 e8 12 8c 7f fb 49 8b 06 44 89 a0 c8 00 00 00 <49> bc 00 00 00 00 00 fc ff df eb 46 e8 c7 9a 1a fb eb 05 e8 c0 9a
RSP: 0018:ffffc9000295f960 EFLAGS: 00000246
RAX: ffffc90002720000 RBX: 0000000000000000 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000295fa70 R08: ffff888033aa00af R09: 1ffff11006754015
R10: dffffc0000000000 R11: ffffed1006754016 R12: 0000000000100000
R13: ffff888033aa1478 R14: ffff888033aa1480 R15: ffff888033aa0eb8
process_one_work kernel/workqueue.c:3236 [inline]
process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3319
worker_thread+0x8a0/0xda0 kernel/workqueue.c:3400
kthread+0x70e/0x8a0 kernel/kthread.c:463
ret_from_fork+0x436/0x7d0 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245