rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 2662 jiffies s: 142501 root: 0x2/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 19703 Comm: syz.4.3521 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:trace_lock_acquire include/trace/events/lock.h:24 [inline]
RIP: 0010:lock_acquire+0xdb/0x4a0 kernel/locking/lockdep.c:5761
Code: d4 9c 0d 0f 83 a3 01 00 00 45 89 f5 41 c1 ee 06 4a 8d 3c f5 28 d2 00 8f be 08 00 00 00 e8 0d a4 6f 00 4c 0f a3 2d 2d d2 9c 0d <73> 0d e8 2e 3c 08 00 84 c0 0f 84 2f 02 00 00 48 c7 c0 e4 06 01 8f
RSP: 0018:ffffc900001e0160 EFLAGS: 00000057
RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff8163fff3
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8f00d228
RBP: ffffc900001e0268 R08: ffffffff8f00d22f R09: 1ffffffff1e01a45
R10: dffffc0000000000 R11: fffffbfff1e01a46 R12: 1ffff9200003c038
R13: 0000000000000001 R14: 0000000000000000 R15: dffffc0000000000
FS:  00007f3c68e256c0(0000) GS:ffff8880b8d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000563471745168 CR3: 0000000025708000 CR4: 00000000003506e0
DR0: 0000200000000300 DR1: 0000200000001240 DR2: 0000200000001240
DR3: 0000200000001240 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
 rcu_read_lock include/linux/rcupdate.h:791 [inline]
 __perf_output_begin kernel/events/ring_buffer.c:163 [inline]
 perf_output_begin_forward+0xc3/0xa70 kernel/events/ring_buffer.c:272
 __perf_event_output kernel/events/core.c:7742 [inline]
 perf_event_output_forward+0x1ad/0x2f0 kernel/events/core.c:7760
 __perf_event_overflow+0x457/0x630 kernel/events/core.c:9506
 perf_swevent_overflow+0x19b/0x230 kernel/events/core.c:9589
 perf_swevent_event+0x458/0x570 kernel/events/core.c:-1
 perf_tp_event+0x36b/0xc10 kernel/events/core.c:10074
 perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10042
 perf_trace_preemptirq_template+0x268/0x320 include/trace/events/preemptirq.h:14
 trace_irq_enable_rcuidle+0xd3/0x140 include/trace/events/preemptirq.h:40
 trace_hardirqs_on+0x24/0x40 kernel/trace/trace_preemptirq.c:44
 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:728
RIP: 0010:seqcount_lockdep_reader_access+0x196/0x1d0 include/linux/seqlock.h:105
Code: 00 4d 85 e4 75 16 e8 d9 cc 0f 00 eb 15 e8 d2 cc 0f 00 e8 9d 6f c1 08 4d 85 e4 74 ea e8 c3 cc 0f 00 fb 48 c7 04 24 0e 36 e0 45 <4b> c7 04 3e 00 00 00 00 43 c7 44 3e 08 00 00 00 00 65 48 8b 04 25
RSP: 0018:ffffc900001e0b40 EFLAGS: 00000246
RAX: ffffffff817279bd RBX: 0000000000000000 RCX: ffff88802ef05a00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900001e0bf8 R08: ffffffff9193426f R09: 1ffffffff232684d
R10: dffffc0000000000 R11: fffffbfff232684e R12: 0000000000000200
R13: dffffc0000000000 R14: 1ffff9200003c168 R15: dffffc0000000000
 timekeeping_get_delta kernel/time/timekeeping.c:254 [inline]
 timekeeping_get_ns kernel/time/timekeeping.c:388 [inline]
 ktime_get+0x7b/0x270 kernel/time/timekeeping.c:848
 hrtimer_forward_now include/linux/hrtimer.h:509 [inline]
 mac80211_hwsim_beacon+0x152/0x1b0 drivers/net/wireless/mac80211_hwsim.c:2162
 __run_hrtimer kernel/time/hrtimer.c:1751 [inline]
 __hrtimer_run_queues+0x522/0xc90 kernel/time/hrtimer.c:1815
 hrtimer_run_softirq+0x173/0x290 kernel/time/hrtimer.c:1832
 handle_softirqs+0x291/0x910 kernel/softirq.c:596
 __do_softirq kernel/softirq.c:630 [inline]
 invoke_softirq kernel/softirq.c:470 [inline]
 __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:679
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:perf_trace_init+0x9e/0x2d0 kernel/trace/trace_event_perf.c:223
Code: c0 2b 98 8d 0f 84 75 01 00 00 4c 89 24 24 4c 8d 63 40 4c 89 e0 48 c1 e8 03 42 0f b6 04 30 84 c0 0f 85 17 01 00 00 4d 63 24 24 <4c> 89 ff 4c 89 e6 e8 f7 fd f7 ff 4d 39 e7 0f 85 a9 00 00 00 4c 8d
RSP: 0018:ffffc90003df7c38 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffffff8e192ea0 RCX: ffff88802ef05a00
RDX: 0000000000000000 RSI: 0000000000000963 RDI: 000000000000011d
RBP: 0000000000000002 R08: ffffffff8f00d22f R09: 1ffffffff1e01a45
R10: dffffc0000000000 R11: fffffbfff1e01a46 R12: 0000000000000962
R13: 0000000000000000 R14: dffffc0000000000 R15: 000000000000011d
 perf_tp_event_init+0x89/0x110 kernel/events/core.c:10129
 perf_try_init_event+0x12b/0x3d0 kernel/events/core.c:11644
 perf_init_event kernel/events/core.c:11708 [inline]
 perf_event_alloc+0xea0/0x21e0 kernel/events/core.c:12000
 __do_sys_perf_event_open kernel/events/core.c:12536 [inline]
 __se_sys_perf_event_open+0x701/0x1ec0 kernel/events/core.c:12428
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f3c67f9e559
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f3c68e25028 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f3c68225fa0 RCX: 00007f3c67f9e559
RDX: fffffffdffffffff RSI: 0000000000000000 RDI: 0000200000000900
RBP: 00007f3c68035ab8 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f3c68226038 R14: 00007f3c68225fa0 R15: 00007fff07e823b8
 </TASK>