rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-....: (1 GPs behind) idle=5fcc/1/0x4000000000000000 softirq=59048/59052 fqs=4403
rcu: hardirqs softirqs csw/system
rcu: number: 8402782 0 0
rcu: cputime: 6026 46491 0 ==> 52500(ms)
rcu: (detected by 1, t=10502 jiffies, g=65309, q=815 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 15160 Comm: syz.0.8110 Not tainted 6.6.101-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:trace_irq_enable+0x30/0xe0 include/trace/events/preemptirq.h:40
Code: 8b 05 30 c2 77 7e 83 f8 08 73 2e 89 c3 c1 e8 06 48 8d 3c c5 e8 84 4a 8e be 08 00 00 00 e8 58 e5 50 00 48 0f a3 1d e8 8c be 0c <73> 09 e8 c9 a7 e3 ff 84 c0 74 08 5b 41 5e c3 0f 0b eb ce 0f 0b eb
RSP: 0018:ffffc90000007a38 EFLAGS: 00000057
RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff818bf7f8
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8e4a84e8
RBP: 0000000000000000 R08: ffffffff8e4a84ef R09: 1ffffffff1c9509d
R10: dffffc0000000000 R11: fffffbfff1c9509e R12: 0000000000000000
R13: 0000000000000000 R14: ffff888024bb0f18 R15: 0000000000000000
FS: 000055557149a500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b33663fff CR3: 0000000030f7e000 CR4: 00000000003506f0
Call Trace:
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: 203037906560c900 RBX: 1ffff92000000f68 RCX: 203037906560c900
RDX: dffffc0000000000 RSI: ffffffff8aaaba40 RDI: ffffffff8afc6780
RBP: ffffc90000007c00 R08: ffffffff90da362f R09: 1ffffffff21b46c5
R10: dffffc0000000000 R11: fffffbfff21b46c6 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_rx_napi+0x21d/0x3c0 net/mac80211/rx.c:5430
ieee80211_rx include/net/mac80211.h:4969 [inline]
ieee80211_handle_queued_frames+0x106/0x1a0 net/mac80211/main.c:319
tasklet_action_common+0x2eb/0x4c0 kernel/softirq.c:809
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:generic_exec_single+0x476/0x4f0 kernel/smp.c:418
Code: 75 11 e8 3d e6 0a 00 48 85 db 75 16 e8 33 e6 0a 00 eb 15 e8 2c e6 0a 00 e8 27 69 f2 08 48 85 db 74 ea e8 1d e6 0a 00 fb 31 c0 <48> c7 44 24 20 0e 36 e0 45 4b c7 04 2c 00 00 00 00 66 43 c7 44 2c
RSP: 0018:ffffc9000cbdf8c0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000200 RCX: ffff888061715a00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000cbdf990 R08: ffffffff90da362f R09: 1ffffffff21b46c5
R10: dffffc0000000000 R11: fffffbfff21b46c6 R12: 1ffff9200197bf1c
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff9200197bf3d
smp_call_function_single+0x352/0x580 kernel/smp.c:647
task_function_call kernel/events/core.c:120 [inline]
event_function_call+0x31f/0x5f0 kernel/events/core.c:305
perf_event_release_kernel+0x1de/0x8c0 kernel/events/core.c:5417
perf_release+0x3b/0x40 kernel/events/core.c:5511
__fput+0x234/0x970 fs/file_table.c:384
task_work_run+0x1ce/0x250 kernel/task_work.c:239
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:177
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210
__syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline]
syscall_exit_to_user_mode+0x1a/0x50 kernel/entry/common.c:302
do_syscall_64+0x61/0xb0 arch/x86/entry/common.c:87
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fa02a18ebe9
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:00007ffc6b56f388 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 000000000007a283 RCX: 00007fa02a18ebe9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000001 R09: 000000036b56f67f
R10: 0000001b32a20000 R11: 0000000000000246 R12: 00007fa02a3b5fac
R13: 00007fa02a3b5fa0 R14: ffffffffffffffff R15: 0000000000000003