rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-....: (1 GPs behind) idle=461/1/0x4000000000000002 softirq=55453/55454 fqs=5248
(detected by 1, t=10502 jiffies, g=85513, q=946)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 19014 Comm: syz.7.4071 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:rcu_dynticks_curr_cpu_in_eqs kernel/rcu/tree.c:331 [inline]
RIP: 0010:rcu_is_watching+0x22/0xa0 kernel/rcu/tree.c:1123
Code: 08 0f 1f 80 00 00 00 00 41 57 41 56 53 65 ff 05 8c be 9e 7e e8 9f cc 45 08 89 c3 83 f8 08 73 5c 49 bf 00 00 00 00 00 fc ff df <4c> 8d 34 dd 20 c8 bc 8b 4c 89 f0 48 c1 e8 03 42 80 3c 38 00 74 08
RSP: 0018:ffffc900000073c8 EFLAGS: 00000093
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 3f4fb7a0c08d2500
RDX: 0000000000000100 RSI: ffffffff8a59e560 RDI: ffffffff8a59e520
RBP: 0000000000000001 R08: dffffc0000000000 R09: ffffc90000007560
R10: fffff52000000eb3 R11: 1ffff92000000eac R12: dffffc0000000000
R13: ffffc900000075c6 R14: ffffffff8bf23a40 R15: dffffc0000000000
FS: 00007f8e83af26c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000003dc2f000 CR4: 00000000003506f0
DR0: 0000200000000300 DR1: 0000200000000300 DR2: 0000200000000300
DR3: 0000200000000300 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
<IRQ>
rcu_read_lock_held_common kernel/rcu/update.c:108 [inline]
rcu_read_lock_held+0x11/0x40 kernel/rcu/update.c:309
perf_get_guest_cbs include/linux/perf_event.h:1274 [inline]
perf_misc_flags+0x56/0x1b0 arch/x86/events/core.c:2961
perf_prepare_sample+0x132/0x1cb0 kernel/events/core.c:7622
__perf_event_output kernel/events/core.c:7802 [inline]
perf_event_output_forward+0x146/0x280 kernel/events/core.c:7822
__perf_event_overflow+0x364/0x530 kernel/events/core.c:9515
perf_swevent_overflow kernel/events/core.c:9591 [inline]
perf_swevent_event+0x4ad/0x530 kernel/events/core.c:9629
perf_tp_event+0x32c/0xb50 kernel/events/core.c:10047
perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10021
perf_trace_preemptirq_template+0x2be/0x380 include/trace/events/preemptirq.h:14
trace_irq_enable_rcuidle+0x108/0x180 include/trace/events/preemptirq.h:40
trace_hardirqs_on+0x57/0x80 kernel/trace/trace_preemptirq.c:44
asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:713
RIP: 0010:__rcu_read_unlock+0x73/0xd0 kernel/rcu/tree_plugin.h:422
Code: 84 c0 75 5f 41 83 3e 00 75 20 43 0f b6 04 3c 84 c0 75 3a 8b 03 3d 00 00 00 40 73 0a 5b 41 5c 41 5d 41 5e 41 5f c3 0f 0b eb f2 <e8> 58 00 00 00 eb d9 89 d9 80 e1 07 80 c1 03 38 c1 7c ac 49 89 fe
RSP: 0018:ffffc90000007bc8 EFLAGS: 00000206
RAX: 0000000000000000 RBX: ffff888078f33fbc RCX: ffff888078f33b80
RDX: 0000000000000100 RSI: ffffffff8a59e560 RDI: ffff888078f33b80
RBP: 0000000000000002 R08: dffffc0000000000 R09: fffffbfff1ad33a6
R10: fffffbfff1ad33a6 R11: 1ffffffff1ad33a5 R12: 1ffff1100f1e67f7
R13: 0000000000019000 R14: ffff888078f33fc0 R15: dffffc0000000000
rcu_read_unlock include/linux/rcupdate.h:772 [inline]
ieee80211_iterate_active_interfaces_atomic+0x132/0x140 net/mac80211/util.c:831
mac80211_hwsim_beacon+0x9b/0x180 drivers/net/wireless/mac80211_hwsim.c:1865
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x53d/0xc40 kernel/time/hrtimer.c:1749
hrtimer_run_softirq+0x176/0x240 kernel/time/hrtimer.c:1766
handle_softirqs+0x328/0x820 kernel/softirq.c:576
__do_softirq kernel/softirq.c:610 [inline]
invoke_softirq kernel/softirq.c:450 [inline]
__irq_exit_rcu+0x12f/0x220 kernel/softirq.c:659
irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:preempt_schedule_irq+0xac/0x150 kernel/sched/core.c:6799
Code: 44 24 20 f6 44 24 21 02 74 0b 0f 0b 48 f7 03 08 00 00 00 74 70 bf 01 00 00 00 e8 cf b7 9f f7 e8 1a 31 cc f7 fb bf 01 00 00 00 <e8> ef b5 ff ff 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 8b 44 24
RSP: 0018:ffffc90002f5fda0 EFLAGS: 00000286
RAX: 3f4fb7a0c08d2500 RBX: 0000000000000000 RCX: 3f4fb7a0c08d2500
RDX: dffffc0000000000 RSI: ffffffff8a0b1c60 RDI: 0000000000000001
RBP: ffffc90002f5fe50 R08: dffffc0000000000 R09: ffffed1017207662
R10: ffffed1017207662 R11: 1ffff11017207661 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff920005ebfb4
irqentry_exit+0x63/0x70 kernel/entry/common.c:432
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:x64_sys_call+0x37b/0x6f0 arch/x86/include/generated/asm/syscalls_64.h:299
Code: c5 00 e9 c8 0b 46 00 e9 53 6a d9 00 e9 fe 07 c5 02 e9 19 5b c5 00 e9 64 79 52 00 e9 6f 05 4b 00 e9 fa 41 c6 00 e9 e5 e9 a3 02 <e9> b0 cc 96 00 e9 3b 7d da 00 e9 06 dc d4 00 e9 51 e5 a3 02 e9 cc
RSP: 0018:ffffc90002f5ff18 EFLAGS: 00000287
RAX: 000000000000012a RBX: ffffc90002f5ff20 RCX: 3f4fb7a0c08d2500
RDX: dffffc0000000000 RSI: 000000000000012a RDI: ffffc90002f5ff58
RBP: ffffc90002f5ff48 R08: dffffc0000000000 R09: ffffed1017207662
R10: ffffed1017207662 R11: 1ffff11017207661 R12: 0000000000000000
R13: 0000000000000000 R14: ffffc90002f5ff58 R15: 000000000000012a
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f8e858ac6c9
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f8e83af2038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f8e85b03090 RCX: 00007f8e858ac6c9
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000480
RBP: 00007f8e8592ef91 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8e85b03128 R14: 00007f8e85b03090 R15: 00007ffcac6c2d38
</TASK>