rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P990 0-.... } 2642 jiffies s: 161861 root: 0x1/T
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 1950 Comm: syz.4.9004 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026
RIP: 0010:check_wait_context kernel/locking/lockdep.c:4770 [inline]
RIP: 0010:__lock_acquire+0x9cd/0x7c40 kernel/locking/lockdep.c:5013
Code: e4 74 3e 0f b6 84 24 80 00 00 00 41 0f b6 cc 44 38 e0 0f 42 c8 89 8c 24 80 00 00 00 49 81 c6 ba 00 00 00 4c 89 f0 48 c1 e8 03 <42> 0f b6 04 00 84 c0 0f 85 3b 01 00 00 41 80 3e 02 0f 84 95 00 00
RSP: 0018:ffffc90000006f20 EFLAGS: 00000806
RAX: 1ffffffff209326f RBX: 0000000000000001 RCX: 0000000000000002
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff90b0f240
RBP: ffffc90000007150 R08: dffffc0000000000 R09: 1ffffffff2161e48
R10: dffffc0000000000 R11: fffffbfff2161e49 R12: 0000000000000002
R13: ffff88802f064728 R14: ffffffff9049937a R15: ffff88802f064728
FS:  00007f6c0867b6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9c143eb580 CR3: 000000004e5ff000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000200000000300 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 lock_acquire+0x1bb/0x4a0 kernel/locking/lockdep.c:5676
 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:7732 [inline]
 perf_event_output_forward+0x1ad/0x2f0 kernel/events/core.c:7750
 __perf_event_overflow+0x457/0x630 kernel/events/core.c:9496
 perf_swevent_overflow kernel/events/core.c:9579 [inline]
 perf_swevent_event+0x315/0x570 kernel/events/core.c:9630
 perf_tp_event+0x36b/0xc10 kernel/events/core.c:10064
 perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10032
 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: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 a2 7c 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:ffffc90000007ae0 EFLAGS: 00000206
RAX: 086d311b5075c700 RBX: 1ffff92000000f64 RCX: 086d311b5075c700
RDX: dffffc0000000000 RSI: ffffffff8a8c17a0 RDI: ffffffff8adf5de0
RBP: ffffc90000007bd0 R08: ffffffff90b0f247 R09: 1ffffffff2161e48
R10: dffffc0000000000 R11: fffffbfff2161e49 R12: 0000000000000246
R13: dffffc0000000000 R14: ffff8880b8e3bb00 R15: 0000000000000001
 __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: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:rcu_dynticks_curr_cpu_in_eqs include/linux/context_tracking.h:122 [inline]
RIP: 0010:rcu_is_watching+0x11/0xa0 kernel/rcu/tree.c:721
Code: f6 e8 03 5e d1 02 e9 44 ff ff ff 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 41 57 41 56 53 65 ff 05 dc 46 96 7e e8 6f 04 c4 08 <89> c3 83 f8 08 73 60 49 bf 00 00 00 00 00 fc ff df 4c 8d 34 dd 80
RSP: 0018:ffffc90006186700 EFLAGS: 00000286
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 086d311b5075c700
RDX: 0000000000000000 RSI: ffffffff8adf5dc0 RDI: ffffffff8adf5d80
RBP: ffffc90006186830 R08: ffffffff8e210aef R09: 1ffffffff1c4215d
R10: dffffc0000000000 R11: fffffbfff1c4215e R12: ffffffff841a27f7
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff92000c30cf0
 trace_lock_release include/trace/events/lock.h:69 [inline]
 lock_release+0xcf/0x920 kernel/locking/lockdep.c:5687
 debug_objects_fill_pool+0xc8/0x780 lib/debugobjects.c:655
 debug_object_activate+0x32/0x4f0 lib/debugobjects.c:743
 debug_rcu_head_queue kernel/rcu/rcu.h:190 [inline]
 call_rcu+0xa2/0x950 kernel/rcu/tree.c:2834
 context_switch kernel/sched/core.c:5249 [inline]
 __schedule+0x1087/0x4030 kernel/sched/core.c:6563
 preempt_schedule_irq+0xbb/0x160 kernel/sched/core.c:6875
 irqentry_exit+0x63/0x70 kernel/entry/common.c:439
 asm_sysvec_reschedule_ipi+0x16/0x20 arch/x86/include/asm/idtentry.h:696
RIP: 0010:__sanitizer_cov_trace_pc+0x3e/0x60 kernel/kcov.c:221
Code: e2 00 01 ff 00 74 11 81 fa 00 01 00 00 75 35 83 b9 1c 16 00 00 00 74 2c 8b 91 f8 15 00 00 83 fa 02 75 21 48 8b 91 00 16 00 00 <48> 8b 32 48 8d 7e 01 8b 89 fc 15 00 00 48 39 cf 73 08 48 89 3a 48
RSP: 0018:ffffc90006186e58 EFLAGS: 00000246
RAX: ffffffff81991e36 RBX: 0000000000000000 RCX: ffff88802f063c00
RDX: ffffc900136e4000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 000020000000cf46 R08: ffff88807471866d R09: 1ffff1100e8e30cd
R10: dffffc0000000000 R11: ffffed100e8e30ce R12: 1ffff1100e8e314f
R13: 0000000000000002 R14: ffff888074718a70 R15: 0000000000000001
 bpf_verifier_vlog+0x1b6/0x3a0 kernel/bpf/log.c:35
 verbose+0x1f0/0x2b0 kernel/bpf/verifier.c:303
 print_verifier_state+0x48b/0x2060 kernel/bpf/verifier.c:809
 do_check kernel/bpf/verifier.c:12502 [inline]
 do_check_common+0x54ce/0xc560 kernel/bpf/verifier.c:14944
 do_check_main kernel/bpf/verifier.c:15007 [inline]
 bpf_check+0x3ea7/0x11000 kernel/bpf/verifier.c:15584
 bpf_prog_load+0x100e/0x1530 kernel/bpf/syscall.c:2651
 __sys_bpf+0x5b8/0x780 kernel/bpf/syscall.c:5032
 __do_sys_bpf kernel/bpf/syscall.c:5136 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:5134 [inline]
 __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:5134
 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: 0033:0x7f6c0779de99
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:00007f6c0867b028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f6c07a26090 RCX: 00007f6c0779de99
RDX: 0000000000000070 RSI: 0000200000000440 RDI: 0000000000000005
RBP: 00007f6c07833eaf R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f6c07a26128 R14: 00007f6c07a26090 R15: 00007ffc4456fb38
 </TASK>