rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-....: (1 GPs behind) idle=b2c4/1/0x4000000000000000 softirq=11598/11600 fqs=1814
rcu: hardirqs softirqs csw/system
rcu: number: 8144320 0 0
rcu: cputime: 5973 46554 0 ==> 52510(ms)
rcu: (detected by 1, t=10502 jiffies, g=10509, q=2221 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 6171 Comm: syz.1.97 Not tainted 6.6.101-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:check_preemption_disabled+0x42/0x110 lib/smp_processor_id.c:55
Code: 65 8b 05 2d 8c 96 75 65 8b 0d 22 8c 96 75 f7 c1 ff ff ff 7f 74 1f 65 48 8b 0c 25 28 00 00 00 48 3b 4c 24 08 0f 85 c4 00 00 00 <48> 83 c4 10 5b 41 5e 41 5f 5d c3 48 c7 04 24 00 00 00 00 9c 8f 04
RSP: 0018:ffffc90000007270 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffff8880b8e3d370 RCX: 774a2e9fe8ccc600
RDX: fffffffe7d23d301 RSI: ffffffff8afc6760 RDI: ffffffff8afc6720
RBP: 0000000000000000 R08: ffffffff8e4a84ef R09: 1ffffffff1c9509d
R10: dffffc0000000000 R11: fffffbfff1c9509e R12: 0000000000000000
R13: dffffc0000000001 R14: 0000000000000000 R15: ffff8880b8e3d378
FS: 00007ff7f2bab6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f034a418d58 CR3: 00000000242f8000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
irq_work_queue_on+0x104/0x220 kernel/irq_work.c:153
rcu_read_unlock_special+0x3a7/0x4c0 kernel/rcu/tree_plugin.h:675
__rcu_read_unlock+0x7c/0xd0 kernel/rcu/tree_plugin.h:426
rcu_read_unlock include/linux/rcupdate.h:818 [inline]
__perf_event_output kernel/events/core.c:7969 [inline]
perf_event_output_forward+0x2e6/0x3a0 kernel/events/core.c:7978
__perf_event_overflow+0x447/0x630 kernel/events/core.c:9703
perf_swevent_overflow kernel/events/core.c:9779 [inline]
perf_swevent_event+0x2f5/0x5c0 kernel/events/core.c:-1
perf_tp_event+0x4f9/0x13a0 kernel/events/core.c:10329
perf_trace_run_bpf_submit+0xf4/0x1c0 kernel/events/core.c:10253
perf_trace_preemptirq_template+0x281/0x340 include/trace/events/preemptirq.h:14
trace_irq_enable+0xbf/0xe0 include/trace/events/preemptirq.h:40
trace_hardirqs_on+0x18/0x40 kernel/trace/trace_preemptirq.c:56
asm_sysvec_irq_work+0x1a/0x20 arch/x86/include/asm/idtentry.h:723
RIP: 0010:rcu_read_unlock_special+0x88/0x4c0 kernel/rcu/tree_plugin.h:682
Code: f1 f1 f1 00 f2 f2 f2 4a 89 04 2b 66 42 c7 44 2b 09 f3 f3 42 c6 44 2b 0b f3 65 44 8b 35 a9 4e 93 7e 41 f7 c6 00 00 f0 00 74 45 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 66 42 c7 44 2b
RSP: 0018:ffffc90000007b00 EFLAGS: 00000206
RAX: 774a2e9fe8ccc600 RBX: 1ffff92000000f68 RCX: 774a2e9fe8ccc600
RDX: dffffc0000000000 RSI: ffffffff8aaaba40 RDI: ffffffff8afc6780
RBP: ffffc90000007bf0 R08: ffffffff8e4a84ef R09: 1ffffffff1c9509d
R10: dffffc0000000000 R11: fffffbfff1c9509e R12: ffffffff8cd35400
R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000001
__rcu_read_unlock+0x7c/0xd0 kernel/rcu/tree_plugin.h:426
rcu_read_unlock include/linux/rcupdate.h:818 [inline]
ieee80211_iterate_active_interfaces_atomic+0x15a/0x180 net/mac80211/util.c:804
mac80211_hwsim_beacon+0xbb/0x1b0 drivers/net/wireless/virtual/mac80211_hwsim.c:2295
__run_hrtimer kernel/time/hrtimer.c:1755 [inline]
__hrtimer_run_queues+0x51e/0xc40 kernel/time/hrtimer.c:1819
hrtimer_run_softirq+0x187/0x2b0 kernel/time/hrtimer.c:1836
handle_softirqs+0x280/0x820 kernel/softirq.c:578
__do_softirq kernel/softirq.c:612 [inline]
invoke_softirq kernel/softirq.c:452 [inline]
__irq_exit_rcu+0xc7/0x190 kernel/softirq.c:661
irq_exit_rcu+0x9/0x20 kernel/softirq.c:673
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1088 [inline]
sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1088
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xa9/0x110 kernel/locking/spinlock.c:194
Code: 74 05 e8 fa 37 15 f7 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f6 44 24 21 02 75 4b f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 22 b3 e4 f6 65 8b 05 23 f9 8c 75 85 c0 74 3c 48 c7 04 24 0e 36
RSP: 0018:ffffc9000b8c7c20 EFLAGS: 00000206
RAX: 774a2e9fe8ccc600 RBX: 0000000000000a02 RCX: 774a2e9fe8ccc600
RDX: dffffc0000000000 RSI: ffffffff8aaaba40 RDI: 0000000000000001
RBP: ffffc9000b8c7cb8 R08: ffffffff8e4a84ef R09: 1ffffffff1c9509d
R10: dffffc0000000000 R11: fffffbfff1c9509e R12: dffffc0000000000
R13: dffffc0000000000 R14: ffffffff97145fb0 R15: 1ffff92001718f84
debug_timer_init kernel/time/timer.c:777 [inline]
debug_init kernel/time/timer.c:825 [inline]
init_timer_key+0x41/0x2a0 kernel/time/timer.c:869
sock_init_data_uid+0x74/0xc10 net/core/sock.c:3419
unix_create1+0xd9/0x790 net/unix/af_unix.c:1021
unix_create+0x154/0x1f0 net/unix/af_unix.c:1084
__sock_create+0x4a6/0x940 net/socket.c:1571
sock_create net/socket.c:1627 [inline]
__sys_socketpair+0x1c1/0x550 net/socket.c:1778
__do_sys_socketpair net/socket.c:1831 [inline]
__se_sys_socketpair net/socket.c:1828 [inline]
__x64_sys_socketpair+0x9b/0xb0 net/socket.c:1828
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7ff7f1d8ebe9
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:00007ff7f2bab038 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007ff7f1fb5fa0 RCX: 00007ff7f1d8ebe9
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000001
RBP: 00007ff7f1e11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000200000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff7f1fb6038 R14: 00007ff7f1fb5fa0 R15: 00007fffbdb48b48