rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2688 jiffies s: 16453 root: 0x1/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 8435 Comm: syz.0.1927 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:kvm_guest_state+0x3/0xf0 virt/kvm/kvm_main.c:5857
Code: e7 e8 f1 f6 c6 00 eb 90 44 89 f1 80 e1 07 80 c1 03 38 c1 7c af 4c 89 f7 e8 da f6 c6 00 eb a5 0f 1f 84 00 00 00 00 00 55 41 57 <41> 56 53 e8 d5 c7 76 00 bf 01 00 00 00 e8 9b a7 4d 00 48 c7 c7 00
RSP: 0018:ffffc90000007148 EFLAGS: 00000046
RAX: ffffffff8100f6a3 RBX: 1ffff92000000e34 RCX: ffff88802b84d940
RDX: 0000000000000100 RSI: ffff8880b8e35518 RDI: ffffc900000072e0
RBP: ffffc90000007290 R08: 000000000000007f R09: 0000000000000000
R10: fffff52000000e9f R11: 1ffff92000000e98 R12: ffffc900000072e0
R13: ffff8880b8e35518 R14: ffff8880770b0448 R15: dffffc0000000000
FS:  00007f0e536fc6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000100000000 CR3: 000000007f2cf000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 perf_guest_state include/linux/perf_event.h:1332 [inline]
 perf_callchain_kernel+0x78/0x5c0 arch/x86/events/core.c:2792
 get_perf_callchain+0x376/0x480 kernel/events/callchain.c:200
 perf_callchain kernel/events/core.c:7512 [inline]
 perf_prepare_sample+0x399/0x2040 kernel/events/core.c:7545
 __perf_event_output kernel/events/core.c:7730 [inline]
 perf_event_output_forward+0x163/0x2a0 kernel/events/core.c:7750
 __perf_event_overflow+0x448/0x610 kernel/events/core.c:9496
 perf_tp_event+0x335/0xb60 kernel/events/core.c:10029
 perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10002
 perf_trace_preemptirq_template+0x287/0x330 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+0x84/0x500 kernel/rcu/tree_plugin.h:685
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 ed 90 96 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:ffffc90000007ac0 EFLAGS: 00000206
RAX: 7765ffa18ee6f300 RBX: 1ffff92000000f60 RCX: 7765ffa18ee6f300
RDX: dffffc0000000000 RSI: ffffffff8a8c0580 RDI: ffffffff8adef760
RBP: ffffc90000007bc0 R08: dffffc0000000000 R09: fffffbfff215c46b
R10: fffffbfff215c46b R11: 1ffffffff215c46a R12: 0000000000000246
R13: dffffc0000000000 R14: ffff8880b8e3b900 R15: 0000000000000001
 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:426
 rcu_read_unlock include/linux/rcupdate.h:823 [inline]
 ieee80211_rx_napi+0x219/0x3c0 net/mac80211/rx.c:5330
 ieee80211_rx include/net/mac80211.h:4846 [inline]
 ieee80211_handle_queued_frames+0x105/0x1b0 net/mac80211/main.c:317
 tasklet_action_common+0x298/0x400 kernel/softirq.c:826
 handle_softirqs+0x2a1/0x920 kernel/softirq.c:596
 __do_softirq kernel/softirq.c:630 [inline]
 invoke_softirq kernel/softirq.c:470 [inline]
 __irq_exit_rcu+0x12f/0x220 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:generic_exec_single+0x41e/0x490 kernel/smp.c:545
Code: 75 11 e8 15 e8 0a 00 48 85 db 75 16 e8 0b e8 0a 00 eb 15 e8 04 e8 0a 00 e8 9f e3 a1 08 48 85 db 74 ea e8 f5 e7 0a 00 fb 31 c0 <48> c7 44 24 20 0e 36 e0 45 4b c7 44 25 00 00 00 00 00 66 43 c7 44
RSP: 0018:ffffc90003357a60 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000200 RCX: ffff88802b84d940
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90003357b30 R08: dffffc0000000000 R09: fffffbfff215c46b
R10: fffffbfff215c46b R11: 1ffffffff215c46a R12: dffffc0000000000
R13: 1ffff9200066af50 R14: 0000000000000000 R15: 1ffff9200066af71
 smp_call_function_single+0x34f/0x560 kernel/smp.c:784
 task_function_call kernel/events/core.c:120 [inline]
 perf_install_in_context+0x59a/0x8f0 kernel/events/core.c:2941
 __do_sys_perf_event_open kernel/events/core.c:12784 [inline]
 __se_sys_perf_event_open+0x1247/0x1e60 kernel/events/core.c:12378
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f0e5278efc9
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:00007f0e536fc038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f0e529e5fa0 RCX: 00007f0e5278efc9
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 00002000000003c0
RBP: 00007f0e52811f91 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f0e529e6038 R14: 00007f0e529e5fa0 R15: 00007ffeb96caca8
 </TASK>