rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 1-....: (10500 ticks this GP) idle=343/1/0x4000000000000000 softirq=80864/80864 fqs=18
(t=10501 jiffies g=127769 q=1460)
rcu: rcu_preempt kthread starved for 3737 jiffies! g127769 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->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:R running task stack:26576 pid: 14 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xb72/0x1460 kernel/sched/core.c:6253
schedule+0x12b/0x1f0 kernel/sched/core.c:6326
schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1881
rcu_gp_fqs_loop+0x1fd/0x770 kernel/rcu/tree.c:1955
rcu_gp_kthread+0xa5/0x350 kernel/rcu/tree.c:2128
kthread+0x468/0x490 kernel/kthread.c:327
ret_from_fork+0x1f/0x30
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 31648 Comm: syz-executor.0 Not tainted 5.16.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__preempt_count_add kernel/rcu/tree.c:1117 [inline]
RIP: 0010:rcu_is_watching+0x2/0xa0 kernel/rcu/tree.c:1120
Code: 5c 41 5d 41 5e 41 5f 5d c3 e8 ea 91 a3 08 41 f7 c4 00 02 00 00 75 b4 eb b3 e8 ba 91 a3 08 66 2e 0f 1f 84 00 00 00 00 00 41 57 <41> 56 53 65 83 05 bb 78 93 7e 01 e8 3e a4 a3 08 89 c3 83 f8 08 73
RSP: 0018:ffffc90000007910 EFLAGS: 00000046
RAX: 0000000000000001 RBX: 1ffff92000000f24 RCX: ffff888039290000
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8dfe9628
RBP: ffffc900000079a8 R08: dffffc0000000000 R09: fffffbfff1bfd2c6
R10: fffffbfff1bfd2c6 R11: 0000000000000000 R12: ffff8880b9a27240
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
FS: 00007f380b5bd700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000563f61470de0 CR3: 000000014e5c1000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rcu_read_lock_held_common kernel/rcu/update.c:108 [inline]
rcu_read_lock_sched_held+0x6b/0x130 kernel/rcu/update.c:123
trace_local_timer_exit+0x78/0x180 arch/x86/include/asm/trace/irq_vectors.h:41
__sysvec_apic_timer_interrupt+0xfe/0x270 arch/x86/kernel/apic/apic.c:1104
sysvec_apic_timer_interrupt+0x3e/0xb0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xd4/0x130 kernel/locking/spinlock.c:194
Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 a2 37 bb f7 f6 44 24 21 02 75 4e 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 67 ff 44 f7 65 8b 05 38 3a ed 75 85 c0 74 3f 48 c7 04 24 0e 36
RSP: 0018:ffffc90000007ac0 EFLAGS: 00000206
RAX: 676e7c930ac39000 RBX: 1ffff92000000f5c RCX: ffffffff81668171
RDX: dffffc0000000000 RSI: 0000000000000101 RDI: 0000000000000001
RBP: ffffc90000007b48 R08: dffffc0000000000 R09: fffffbfff1ff39f9
R10: fffffbfff1ff39f9 R11: 0000000000000000 R12: dffffc0000000000
R13: 1ffff92000000f58 R14: ffffc90000007ae0 R15: 0000000000000246
spin_unlock_irqrestore include/linux/spinlock.h:404 [inline]
skb_dequeue+0x10e/0x140 net/core/skbuff.c:3216
garp_queue_xmit net/802/garp.c:271 [inline]
garp_join_timer+0x95/0x130 net/802/garp.c:423
call_timer_fn+0xf6/0x210 kernel/time/timer.c:1421
expire_timers kernel/time/timer.c:1466 [inline]
__run_timers+0x71a/0x910 kernel/time/timer.c:1734
run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1747
__do_softirq+0x392/0x7a3 kernel/softirq.c:558
__irq_exit_rcu+0xec/0x170 kernel/softirq.c:637
irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:220 [inline]
RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x4/0xa0 kernel/kcov.c:287
Code: c1 e0 03 48 83 c8 18 48 89 34 01 4c 89 44 f9 18 49 ff c2 4c 89 11 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 4c 8b 04 24 <65> 48 8b 14 25 c0 6f 02 00 65 8b 05 34 d2 7d 7e a9 00 01 ff 00 74
RSP: 0018:ffffc90012707c38 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff88807db4b880 RCX: 0000000000040000
RDX: ffffc90003013000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90012707e28 R08: ffffffff83d49941 R09: fffff520024e0f5d
R10: fffff520024e0f5d R11: 0000000000000000 R12: ffffffff8d0c4000
R13: ffff88807db4a540 R14: 0000000000000000 R15: 0000000000000000
key_create_or_update+0xcf1/0x1390 security/keys/key.c:942
__do_sys_add_key security/keys/keyctl.c:134 [inline]
__se_sys_add_key+0x338/0x480 security/keys/keyctl.c:74
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f380cc68e99
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f380b5bd168 EFLAGS: 00000246 ORIG_RAX: 00000000000000f8
RAX: ffffffffffffffda RBX: 00007f380cd7c030 RCX: 00007f380cc68e99
RDX: 00000000200002c0 RSI: 0000000020000000 RDI: 0000000020000040
RBP: 00007f380ccc2ff1 R08: fffffffffffffffe R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff2e981d4f R14: 00007f380b5bd300 R15: 0000000000022000
NMI backtrace for cpu 1
CPU: 1 PID: 31640 Comm: syz-executor.0 Not tainted 5.16.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1dc/0x2d8 lib/dump_stack.c:106
nmi_cpu_backtrace+0x45f/0x490 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x16a/0x280 lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
rcu_dump_cpu_stacks+0x22d/0x390 kernel/rcu/tree_stall.h:343
print_cpu_stall kernel/rcu/tree_stall.h:627 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:711 [inline]
rcu_pending kernel/rcu/tree.c:3878 [inline]
rcu_sched_clock_irq+0x1e33/0x2bc0 kernel/rcu/tree.c:2597
update_process_times+0x197/0x200 kernel/time/timer.c:1785
tick_sched_handle kernel/time/tick-sched.c:226 [inline]
tick_sched_timer+0x27d/0x420 kernel/time/tick-sched.c:1428
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x4cb/0xa60 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x3b3/0x1040 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
__sysvec_apic_timer_interrupt+0xf9/0x270 arch/x86/kernel/apic/apic.c:1103
sysvec_apic_timer_interrupt+0x3e/0xb0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x25/0x40 kernel/locking/spinlock.c:202
Code: d1 52 fd ff 90 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 7e f5 50 f7 48 89 df e8 86 a6 52 f7 e8 e1 ff 75 f7 fb bf 01 00 00 00 e6 fe 44 f7 65 8b 05 b7 39 ed 75 85 c0 74 02 5b c3 e8 3c 21 eb
RSP: 0018:ffffc90000dc0cb0 EFLAGS: 00000282
RAX: 34af8b6819da1300 RBX: ffff8880b9b280c0 RCX: ffffffff81668171
RDX: dffffc0000000000 RSI: 0000000000000101 RDI: 0000000000000001
RBP: ffffc90000dc0e10 R08: dffffc0000000000 R09: fffffbfff1ff39dd
R10: fffffbfff1ff39dd R11: 0000000000000000 R12: ffffffff883f7640
R13: dffffc0000000000 R14: ffff8880b9b28100 R15: ffff88808b631810
expire_timers kernel/time/timer.c:1465 [inline]
__run_timers+0x70a/0x910 kernel/time/timer.c:1734
run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1747
__do_softirq+0x392/0x7a3 kernel/softirq.c:558
__irq_exit_rcu+0xec/0x170 kernel/softirq.c:637
irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20
RIP: 0010:task_stack_page include/linux/sched/task_stack.h:21 [inline]
RIP: 0010:in_task_stack+0x0/0x30 arch/x86/kernel/dumpstack.c:35
Code: 5e 41 5f 5d e9 51 00 00 00 48 c7 c7 40 68 95 8c 4c 89 fe e8 f2 27 37 fa e9 55 ff ff ff cc cc cc cc cc cc cc cc cc cc cc cc cc <48> 8b 4e 20 31 c0 48 39 f9 77 24 48 8d b1 00 80 00 00 48 39 fe 76
RSP: 0018:ffffc90012827328 EFLAGS: 00000282
RAX: dffffc0000000000 RBX: ffff8880a2fdd700 RCX: ffffc90012827420
RDX: ffffc90012827400 RSI: ffff8880a2fdd700 RDI: ffffc90012827398
RBP: ffffc90012827398 R08: dffffc0000000000 R09: ffffc90012827400
R10: fffff52002504e8c R11: 0000000000000000 R12: ffffc90012827400
R13: ffffc90012827428 R14: ffffc90012827420 R15: 1ffff92002504e85
get_stack_info_noinstr+0x16/0x130 arch/x86/kernel/dumpstack_64.c:173
get_stack_info+0x38/0xf0 arch/x86/kernel/dumpstack_64.c:199
__unwind_start+0x46b/0x750 arch/x86/kernel/unwind_orc.c:681
unwind_start arch/x86/include/asm/unwind.h:64 [inline]
arch_stack_walk+0xdc/0x140 arch/x86/kernel/stacktrace.c:24
stack_trace_save+0x11b/0x1e0 kernel/stacktrace.c:122
save_stack+0xff/0x200 mm/page_owner.c:119
__set_page_owner+0x42/0x2f0 mm/page_owner.c:181
prep_new_page mm/page_alloc.c:2418 [inline]
get_page_from_freelist+0x729/0x9e0 mm/page_alloc.c:4149
__alloc_pages+0x255/0x580 mm/page_alloc.c:5369
__alloc_pages_node include/linux/gfp.h:570 [inline]
alloc_pages_node include/linux/gfp.h:593 [inline]
pcpu_alloc_pages mm/percpu-vm.c:95 [inline]
pcpu_populate_chunk+0x26b/0xeb0 mm/percpu-vm.c:285
pcpu_alloc+0xcaf/0x1800 mm/percpu.c:1863
perf_trace_event_reg kernel/trace/trace_event_perf.c:121 [inline]
perf_trace_event_init+0x4f5/0x950 kernel/trace/trace_event_perf.c:204
perf_trace_init+0x259/0x2f0 kernel/trace/trace_event_perf.c:228
perf_tp_event_init+0x88/0x110 kernel/events/core.c:9794
perf_try_init_event+0x13e/0x3d0 kernel/events/core.c:11252
perf_init_event kernel/events/core.c:11316 [inline]
perf_event_alloc+0x117a/0x2c30 kernel/events/core.c:11607
__do_sys_perf_event_open kernel/events/core.c:12128 [inline]
__se_sys_perf_event_open+0x7b2/0x4280 kernel/events/core.c:12020
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f380cc68e99
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f380b5de168 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f380cd7bf60 RCX: 00007f380cc68e99
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000000
RBP: 00007f380ccc2ff1 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff2e981d4f R14: 00007f380b5de300 R15: 0000000000022000
----------------
Code disassembly (best guess):
0: 5c pop %rsp
1: 41 5d pop %r13
3: 41 5e pop %r14
5: 41 5f pop %r15
7: 5d pop %rbp
8: c3 retq
9: e8 ea 91 a3 08 callq 0x8a391f8
e: 41 f7 c4 00 02 00 00 test $0x200,%r12d
15: 75 b4 jne 0xffffffcb
17: eb b3 jmp 0xffffffcc
19: e8 ba 91 a3 08 callq 0x8a391d8
1e: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1)
25: 00 00 00
28: 41 57 push %r15
* 2a: 41 56 push %r14 <-- trapping instruction
2c: 53 push %rbx
2d: 65 83 05 bb 78 93 7e addl $0x1,%gs:0x7e9378bb(%rip) # 0x7e9378f0
34: 01
35: e8 3e a4 a3 08 callq 0x8a3a478
3a: 89 c3 mov %eax,%ebx
3c: 83 f8 08 cmp $0x8,%eax
3f: 73 .byte 0x73