rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-...!: (1 GPs behind) idle=04d/1/0x4000000000000000 softirq=37571/37572 fqs=8
(detected by 1, t=10502 jiffies, g=56561, q=203)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 12493 Comm: syz-executor.2 Not tainted 5.17.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:166 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0xd/0x60 kernel/kcov.c:200
Code: 00 00 48 c7 c7 60 b1 b5 8c e8 6f 85 4b 00 c3 cc cc cc cc cc cc cc cc cc cc cc cc cc cc 48 8b 04 24 65 48 8b 0c 25 80 6f 02 00 <65> 8b 15 e4 c7 7c 7e f7 c2 00 01 ff 00 74 11 f7 c2 00 01 00 00 74
RSP: 0018:ffffc90000007cf0 EFLAGS: 00000046
RAX: ffffffff8174dac0 RBX: ffff8880782c7340 RCX: ffff888018818000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8880782c7340
RBP: 0000000000000000 R08: dffffc0000000000 R09: fffffbfff21cc71a
R10: fffffbfff21cc71a R11: 0000000000000000 R12: ffff8880b9a2a4c0
R13: dffffc0000000000 R14: ffff8880b9a2a608 R15: ffff8880782c7340
FS: 00007fe491186700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f06b997d000 CR3: 0000000074be8000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
trace_hrtimer_start+0x10/0x270 include/trace/events/timer.h:195
debug_activate kernel/time/hrtimer.c:476 [inline]
enqueue_hrtimer kernel/time/hrtimer.c:1084 [inline]
__run_hrtimer kernel/time/hrtimer.c:1702 [inline]
__hrtimer_run_queues+0x59e/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+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20
RIP: 0010:import_iovec+0xe1/0x120 lib/iov_iter.c:2011
Code: fd 48 c1 ed 1e eb 08 e8 1d 0c 73 fd 40 b5 01 4c 8b 4c 24 10 4c 8b 44 24 08 8b 4c 24 04 8b 14 24 4c 89 e6 89 df 40 0f b6 c5 50 ea f9 ff ff 48 83 c4 20 5b 41 5c 41 5d 41 5e 41 5f 5d c3 44 89
RSP: 0018:ffffc900044579a8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000008
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffc90004457c20 R09: ffffc90004457d50
R10: fffff5200088af6f R11: 0000000000000000 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff888018818020 R15: ffff888018818010
copy_msghdr_from_user net/socket.c:2351 [inline]
recvmsg_copy_msghdr net/socket.c:2598 [inline]
___sys_recvmsg net/socket.c:2670 [inline]
do_recvmmsg+0xdb8/0x1680 net/socket.c:2768
__sys_recvmmsg net/socket.c:2847 [inline]
__do_sys_recvmmsg net/socket.c:2870 [inline]
__se_sys_recvmmsg net/socket.c:2863 [inline]
__x64_sys_recvmmsg+0x195/0x240 net/socket.c:2863
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: 0033:0x7fe492811059
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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe491186168 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007fe492923f60 RCX: 00007fe492811059
RDX: 0000000000000a0d RSI: 00000000200066c0 RDI: 0000000000000004
RBP: 00007fe49286b08d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffeead7574f R14: 00007fe491186300 R15: 0000000000022000
rcu: rcu_preempt kthread starved for 10485 jiffies! g56561 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
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:26480 pid: 14 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0x926/0x1080 kernel/sched/core.c:6295
schedule+0x12b/0x1f0 kernel/sched/core.c:6368
schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1881
rcu_gp_fqs_loop+0x1fd/0x770 kernel/rcu/tree.c:1963
rcu_gp_kthread+0xa5/0x350 kernel/rcu/tree.c:2136
kthread+0x2a3/0x2d0 kernel/kthread.c:377
ret_from_fork+0x1f/0x30
rcu: Stack dump where RCU GP kthread last ran:
NMI backtrace for cpu 1
CPU: 1 PID: 12506 Comm: syz-executor.3 Not tainted 5.17.0-rc2-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_check_gp_kthread_starvation+0x1ff/0x270 kernel/rcu/tree_stall.h:458
print_other_cpu_stall kernel/rcu/tree_stall.h:563 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:706 [inline]
rcu_pending kernel/rcu/tree.c:3919 [inline]
rcu_sched_clock_irq+0x23d5/0x2bc0 kernel/rcu/tree.c:2617
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+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20
RIP: 0010:check_kcov_mode kernel/kcov.c:177 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x33/0x60 kernel/kcov.c:200
Code: 80 6f 02 00 65 8b 15 e4 c7 7c 7e f7 c2 00 01 ff 00 74 11 f7 c2 00 01 00 00 74 35 83 b9 a4 15 00 00 00 74 2c 8b 91 80 15 00 00 <83> fa 02 75 21 48 8b 91 88 15 00 00 48 8b 32 48 8d 7e 01 8b 89 84
RSP: 0018:ffffc90004517498 EFLAGS: 00000246
RAX: ffffffff8179f27a RBX: 1ffff11017348369 RCX: ffff88804232ba00
RDX: 0000000000000002 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffffc900045175e0 R08: ffffffff8179f242 R09: ffffffff8447aeb0
R10: 0000000000000009 R11: ffff88804232ba00 R12: 0000000000000000
R13: ffff8880b9a41b48 R14: ffff8880b9b3a840 R15: dffffc0000000000
csd_lock_wait kernel/smp.c:440 [inline]
smp_call_function_many_cond+0xc3a/0xe10 kernel/smp.c:969
on_each_cpu_cond_mask+0x3b/0x80 kernel/smp.c:1135
on_each_cpu include/linux/smp.h:71 [inline]
text_poke_sync arch/x86/kernel/alternative.c:1112 [inline]
text_poke_bp_batch+0x309/0x920 arch/x86/kernel/alternative.c:1300
text_poke_bp+0xc7/0x140 arch/x86/kernel/alternative.c:1516
arch_static_call_transform+0x8c/0x1c0 arch/x86/kernel/static_call.c:108
__static_call_update+0xff/0x690 kernel/static_call.c:136
tracepoint_update_call kernel/tracepoint.c:317 [inline]
tracepoint_add_func+0x7c6/0x960 kernel/tracepoint.c:358
tracepoint_probe_register_prio kernel/tracepoint.c:511 [inline]
tracepoint_probe_register+0x109/0x170 kernel/tracepoint.c:531
perf_trace_event_reg kernel/trace/trace_event_perf.c:129 [inline]
perf_trace_event_init+0x49b/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:9876
perf_try_init_event+0x13e/0x3d0 kernel/events/core.c:11334
perf_init_event kernel/events/core.c:11398 [inline]
perf_event_alloc+0x117a/0x2c30 kernel/events/core.c:11689
__do_sys_perf_event_open kernel/events/core.c:12210 [inline]
__se_sys_perf_event_open+0x7b2/0x4280 kernel/events/core.c:12102
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: 0033:0x7fe8c4e9f059
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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe8c37b1168 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fe8c4fb21d0 RCX: 00007fe8c4e9f059
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000000020000040
RBP: 00007fe8c4ef908d R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc436a1aef R14: 00007fe8c37b1300 R15: 0000000000022000
----------------
Code disassembly (best guess):
0: 00 00 add %al,(%rax)
2: 48 c7 c7 60 b1 b5 8c mov $0xffffffff8cb5b160,%rdi
9: e8 6f 85 4b 00 callq 0x4b857d
e: c3 retq
f: cc int3
10: cc int3
11: cc int3
12: cc int3
13: cc int3
14: cc int3
15: cc int3
16: cc int3
17: cc int3
18: cc int3
19: cc int3
1a: cc int3
1b: cc int3
1c: cc int3
1d: 48 8b 04 24 mov (%rsp),%rax
21: 65 48 8b 0c 25 80 6f mov %gs:0x26f80,%rcx
28: 02 00
* 2a: 65 8b 15 e4 c7 7c 7e mov %gs:0x7e7cc7e4(%rip),%edx # 0x7e7cc815 <-- trapping instruction
31: f7 c2 00 01 ff 00 test $0xff0100,%edx
37: 74 11 je 0x4a
39: f7 c2 00 01 00 00 test $0x100,%edx
3f: 74 .byte 0x74