rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: 0-....: (1 GPs behind) idle=a51/1/0x4000000000000000 softirq=10187/10188 fqs=5244 (detected by 1, t=10502 jiffies, g=12281, q=1738) Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 5282 Comm: syz.3.273 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:202 Code: 66 2e 0f 1f 84 00 00 00 00 00 53 48 89 fb e8 17 00 00 00 48 8b 3d 10 d2 f1 0b 48 89 de 5b e9 07 9e 43 00 00 00 cc cc 00 00 cc <48> 8b 04 24 65 48 8b 0d 24 a5 8a 7e 65 8b 15 25 a5 8a 7e 81 e2 00 RSP: 0018:ffffc90000007598 EFLAGS: 00000046 RAX: 1ffff110044b2977 RBX: ffff8880225947a0 RCX: 0eb8080f59f67a00 RDX: 0000000000000007 RSI: ffffffff8a0b2b40 RDI: ffff888022594a80 RBP: ffffc90000007680 R08: dffffc0000000000 R09: fffffbfff1ad334e R10: fffffbfff1ad334e R11: 1ffffffff1ad334d R12: dffffc0000000000 R13: 0000000000000000 R14: ffff888022594bb8 R15: ffff8880b90351c8 FS: 00007f59706986c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff6838cdf98 CR3: 000000007200a000 CR4: 00000000003506f0 DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: __perf_event_overflow+0x415/0x530 kernel/events/core.c:9517 perf_tp_event+0x32c/0xb50 kernel/events/core.c:10047 perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10021 perf_trace_preemptirq_template+0x2be/0x380 include/trace/events/preemptirq.h:14 trace_irq_enable_rcuidle+0x108/0x180 include/trace/events/preemptirq.h:40 trace_hardirqs_on+0x57/0x80 kernel/trace/trace_preemptirq.c:44 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:713 RIP: 0010:rcu_read_unlock_special+0x84/0x480 kernel/rcu/tree_plugin.h:674 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 6d 13 9e 7e 41 f7 c6 00 00 f0 00 74 45 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 2b 00 00 00 00 66 42 c7 44 2b RSP: 0018:ffffc90000007ae0 EFLAGS: 00000206 RAX: 0eb8080f59f67a00 RBX: 1ffff92000000f60 RCX: 0eb8080f59f67a00 RDX: dffffc0000000000 RSI: ffffffff8a0b18a0 RDI: ffffffff8a59a880 RBP: ffffc90000007bb8 R08: dffffc0000000000 R09: fffffbfff1ff7a19 R10: fffffbfff1ff7a19 R11: 1ffffffff1ff7a18 R12: ffffffff8c120c00 R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000001 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:422 rcu_read_unlock include/linux/rcupdate.h:772 [inline] ieee80211_iterate_active_interfaces_atomic+0x132/0x140 net/mac80211/util.c:831 mac80211_hwsim_beacon+0x9b/0x180 drivers/net/wireless/mac80211_hwsim.c:1865 __run_hrtimer kernel/time/hrtimer.c:1685 [inline] __hrtimer_run_queues+0x53d/0xc40 kernel/time/hrtimer.c:1749 hrtimer_run_softirq+0x176/0x240 kernel/time/hrtimer.c:1766 handle_softirqs+0x328/0x820 kernel/softirq.c:576 __do_softirq kernel/softirq.c:610 [inline] invoke_softirq kernel/softirq.c:450 [inline] __irq_exit_rcu+0x12f/0x220 kernel/softirq.c:659 irq_exit_rcu+0x5/0x20 kernel/softirq.c:671 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline] sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676 RIP: 0010:bitmap_and include/linux/bitmap.h:307 [inline] RIP: 0010:cpumask_and include/linux/cpumask.h:405 [inline] RIP: 0010:smp_call_function_many_cond+0x395/0xd70 kernel/smp.c:909 Code: c0 68 9a 69 8d 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 0c 48 c7 c7 68 9a 69 8d e8 c0 b5 4f 00 4c 8b 74 24 58 <4c> 89 f0 48 c1 e8 03 44 23 2d b5 1d fd 0b 48 b9 00 00 00 00 00 fc RSP: 0018:ffffc9000387f540 EFLAGS: 00000246 RAX: 1ffffffff1ad334d RBX: ffff8880b9000000 RCX: dffffc0000000000 RDX: ffffc9000dfd9000 RSI: 0000000000017e85 RDI: 0000000000017e86 RBP: ffffc9000387f680 R08: dffffc0000000000 R09: fffffbfff1ad334e R10: fffffbfff1ad334e R11: 1ffffffff1ad334d R12: ffffffff8d699a68 R13: 0000000000000003 R14: ffff8880b903b3c8 R15: 0000000000000000 on_each_cpu_cond_mask+0x3b/0x80 kernel/smp.c:1134 on_each_cpu include/linux/smp.h:71 [inline] text_poke_sync arch/x86/kernel/alternative.c:1442 [inline] text_poke_bp_batch+0x533/0x7c0 arch/x86/kernel/alternative.c:1704 text_poke_bp+0xd2/0x150 arch/x86/kernel/alternative.c:1879 __static_call_transform+0x318/0x500 arch/x86/kernel/static_call.c:111 arch_static_call_transform+0xa0/0x250 arch/x86/kernel/static_call.c:157 __static_call_update+0xdd/0x5b0 kernel/static_call_inline.c:136 tracepoint_update_call kernel/tracepoint.c:317 [inline] tracepoint_add_func+0x7fb/0x9a0 kernel/tracepoint.c:358 tracepoint_probe_register_prio kernel/tracepoint.c:511 [inline] tracepoint_probe_register+0x5a/0x90 kernel/tracepoint.c:531 perf_trace_event_reg kernel/trace/trace_event_perf.c:129 [inline] perf_trace_event_init+0x518/0xa10 kernel/trace/trace_event_perf.c:202 perf_trace_init+0x234/0x2d0 kernel/trace/trace_event_perf.c:226 perf_tp_event_init+0x89/0x110 kernel/events/core.c:10102 perf_try_init_event+0x12b/0x3d0 kernel/events/core.c:11601 perf_init_event kernel/events/core.c:11665 [inline] perf_event_alloc+0xfcf/0x2240 kernel/events/core.c:11957 __do_sys_perf_event_open kernel/events/core.c:12495 [inline] __se_sys_perf_event_open+0x6c5/0x1b80 kernel/events/core.c:12387 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f5972430fc9 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:00007f5970698038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007f5972687fa0 RCX: 00007f5972430fc9 RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000180 RBP: 00007f59724b3f91 R08: 000000000000000a R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007f5972688038 R14: 00007f5972687fa0 R15: 00007ffd8587f758