rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 2641 jiffies s: 82117 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: 22932 Comm: syz.4.6041 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:arch_irqs_disabled_flags arch/x86/include/asm/irqflags.h:125 [inline]
RIP: 0010:rcu_preempt_deferred_qs_handler+0x89/0x190 kernel/rcu/tree_plugin.h:619
Code: 37 43 c7 44 37 08 f8 f3 f3 f3 43 c6 44 37 08 00 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 4c 8b 64 24 40 43 c6 44 37 08 f8 fa <41> f7 c4 00 02 00 00 75 1d 48 83 c3 20 48 89 d8 48 c1 e8 03 42 0f
RSP: 0018:ffffc900001e0800 EFLAGS: 00000806
RAX: f2f2f2f8f1f1f1f1 RBX: ffff8880b8f3b9f0 RCX: ffff888025201dc0
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffff8880b8f3b9f0
RBP: ffffc900001e08b8 R08: ffff8880b8f3b9fb R09: 1ffff110171e773f
R10: dffffc0000000000 R11: ffffed10171e7740 R12: 0000000000000806
R13: 0000000000000023 R14: dffffc0000000000 R15: 1ffff9200003c100
FS:  00007fedc08d16c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2fcd5b CR3: 0000000058059000 CR4: 00000000003506e0
DR0: 0000200000000300 DR1: 0000200000000300 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 irq_work_single+0xd1/0x230 kernel/irq_work.c:211
 irq_work_run_list kernel/irq_work.c:242 [inline]
 irq_work_run+0x159/0x2f0 kernel/irq_work.c:251
 __sysvec_irq_work+0xba/0x350 arch/x86/kernel/irq_work.c:22
 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline]
 sysvec_irq_work+0x4a/0xc0 arch/x86/kernel/irq_work.c:17
 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:728
RIP: 0010:rcu_read_unlock_special+0x7f/0x510 kernel/rcu/tree_plugin.h:685
Code: eb 03 48 b8 f1 f1 f1 f1 f8 f2 f2 f2 4a 89 04 2b 42 c7 44 2b 08 f8 f3 f3 f3 65 44 8b 35 92 31 95 7e 41 f7 c6 00 00 f0 00 74 40 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 42 c7 44 2b 08
RSP: 0018:ffffc900001e0aa0 EFLAGS: 00000206
RAX: aff7aa3afdeaf500 RBX: 1ffff9200003c15c RCX: aff7aa3afdeaf500
RDX: dffffc0000000000 RSI: ffffffff8a8c1220 RDI: ffffffff8adf0d20
RBP: ffffc900001e0b90 R08: ffffffff90af527f R09: 1ffffffff215ea4f
R10: dffffc0000000000 R11: fffffbfff215ea50 R12: 0000000000000246
R13: dffffc0000000000 R14: ffff8880b8f3b900 R15: 0000000000000002
 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:426
 rcu_read_unlock include/linux/rcupdate.h:823 [inline]
 ieee80211_iterate_active_interfaces_atomic+0x156/0x170 net/mac80211/util.c:826
 mac80211_hwsim_beacon+0xb7/0x1b0 drivers/net/wireless/mac80211_hwsim.c:2147
 __run_hrtimer kernel/time/hrtimer.c:1747 [inline]
 __hrtimer_run_queues+0x560/0xd70 kernel/time/hrtimer.c:1811
 hrtimer_run_softirq+0x183/0x2a0 kernel/time/hrtimer.c:1828
 handle_softirqs+0x2a1/0x930 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: 00 27 b8 8c 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 77 00 f8 ff 4d 39 e7 0f 85 a9 00 00 00 4c 8d
RSP: 0018:ffffc90004097c20 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffffff8d17ed40 RCX: 0000000000080000
RDX: ffffc9000fee4000 RSI: 00000000000036dd RDI: 00000000000036de
RBP: 0000000000000002 R08: ffffffff8cb8264b R09: 1ffffffff19704c9
R10: dffffc0000000000 R11: fffffbfff19704ca R12: 00000000000008b9
R13: 0000000000000000 R14: dffffc0000000000 R15: 000000000000009d
 perf_tp_event_init+0x89/0x110 kernel/events/core.c:10084
 perf_try_init_event+0x12b/0x3d0 kernel/events/core.c:11594
 perf_init_event kernel/events/core.c:11658 [inline]
 perf_event_alloc+0xf5c/0x21b0 kernel/events/core.c:11950
 __do_sys_perf_event_open kernel/events/core.c:12486 [inline]
 __se_sys_perf_event_open+0x5db/0x1ec0 kernel/events/core.c:12378
 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: 0033:0x7fedbf99bf79
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:00007fedc08d1028 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fedbfc16090 RCX: 00007fedbf99bf79
RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 0000200000000200
RBP: 00007fedbfa327e0 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007fedbfc16128 R14: 00007fedbfc16090 R15: 00007fff7b6eefd8
 </TASK>