rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: 0-....: (1 GPs behind) idle=1a3/1/0x4000000000000002 softirq=36866/36867 fqs=2100 (detected by 1, t=10505 jiffies, g=53565, q=2847) Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 11858 Comm: syz-executor.3 Not tainted 5.15.156-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:check_kcov_mode kernel/kcov.c:163 [inline] RIP: 0010:write_comp_data kernel/kcov.c:218 [inline] RIP: 0010:__sanitizer_cov_trace_const_cmp8+0x28/0x80 kernel/kcov.c:291 Code: 1f 00 4c 8b 04 24 65 48 8b 0d f4 0e 82 7e 65 8b 05 f5 0e 82 7e a9 00 01 ff 00 74 10 a9 00 01 00 00 74 57 83 b9 34 16 00 00 00 <74> 4e 8b 81 10 16 00 00 83 f8 03 75 43 48 8b 91 18 16 00 00 44 8b RSP: 0018:ffffc900000078a8 EFLAGS: 00000046 RAX: 0000000000000102 RBX: 0000000000000102 RCX: ffff888021373b80 RDX: 0000000000000102 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff8880b9a00000 R08: ffffffff81a1e9cd R09: ffffed1017347662 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000014 R13: dffffc0000000000 R14: ffffc90000007900 R15: dffffc0000000000 FS: 00007f288f4ac6c0(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30723000 CR3: 0000000079dba000 CR4: 00000000003506f0 DR0: 6956940000000000 DR1: 6956940000000000 DR2: 6956940000000000 DR3: 6956940000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: interrupt_context_level include/linux/preempt.h:94 [inline] get_recursion_context kernel/events/internal.h:213 [inline] perf_swevent_get_recursion_context+0x7d/0x150 kernel/events/core.c:9670 perf_trace_buf_alloc+0x57/0x2d0 kernel/trace/trace_event_perf.c:407 perf_trace_preemptirq_template+0x1cf/0x430 include/trace/events/preemptirq.h:14 trace_irq_enable_rcuidle+0x10e/0x190 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:664 RIP: 0010:rcu_read_unlock_special+0x84/0x520 kernel/rcu/tree_plugin.h:671 Code: f1 f1 f1 00 f2 f2 f2 49 89 04 17 66 41 c7 44 17 09 f3 f3 41 c6 44 17 0b f3 65 44 8b 25 5d a7 96 7e 41 f7 c4 00 00 f0 00 74 45 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 3a 00 00 00 00 66 42 c7 44 3a RSP: 0018:ffffc90000007b00 EFLAGS: 00000206 RAX: 503ba8eb145f9600 RBX: 1ffff92000000f68 RCX: ffffffff913edf03 RDX: dffffc0000000000 RSI: ffffffff8a8b2980 RDI: ffffffff8ad8f380 RBP: ffffc90000007bd0 R08: ffffffff8186deb8 R09: ffffed1017347662 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff8c923b00 R13: ffff888021373fd8 R14: ffffc90000007b40 R15: 1ffff92000000f64 __rcu_read_unlock+0x92/0x100 kernel/rcu/tree_plugin.h:422 rcu_read_unlock include/linux/rcupdate.h:771 [inline] ieee80211_iterate_active_interfaces_atomic+0x12e/0x140 net/mac80211/util.c:831 mac80211_hwsim_beacon+0xa7/0x180 drivers/net/wireless/mac80211_hwsim.c:1865 __run_hrtimer kernel/time/hrtimer.c:1686 [inline] __hrtimer_run_queues+0x598/0xcf0 kernel/time/hrtimer.c:1750 hrtimer_run_softirq+0x196/0x2c0 kernel/time/hrtimer.c:1767 __do_softirq+0x3b3/0x93a kernel/softirq.c:558 invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x155/0x240 kernel/softirq.c:637 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0xd4/0x130 kernel/locking/spinlock.c:194 Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 02 05 a3 f7 f6 44 24 21 02 75 4e 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 37 45 30 f7 65 8b 05 08 53 db 75 85 c0 74 3f 48 c7 04 24 0e 36 RSP: 0018:ffffc900035175a0 EFLAGS: 00000206 RAX: 503ba8eb145f9600 RBX: 1ffff920006a2eb8 RCX: ffffffff913edf03 RDX: dffffc0000000000 RSI: ffffffff8a8b2980 RDI: 0000000000000001 RBP: ffffc90003517630 R08: ffffffff8186deb8 R09: ffffed1017347662 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: 1ffff920006a2eb4 R14: ffffc900035175c0 R15: 0000000000000246 rcu_preempt_deferred_qs_irqrestore+0x879/0xc50 rcu_read_unlock_special+0x43f/0x520 kernel/rcu/tree_plugin.h:670 __rcu_read_unlock+0x92/0x100 kernel/rcu/tree_plugin.h:422 rcu_read_unlock include/linux/rcupdate.h:771 [inline] try_to_unlazy+0x3fa/0x6f0 fs/namei.c:783 open_last_lookups fs/namei.c:3511 [inline] path_openat+0x606/0x2f20 fs/namei.c:3739 do_filp_open+0x21c/0x460 fs/namei.c:3769 do_sys_openat2+0x13b/0x500 fs/open.c:1253 do_sys_open fs/open.c:1269 [inline] __do_sys_openat fs/open.c:1285 [inline] __se_sys_openat fs/open.c:1280 [inline] __x64_sys_openat+0x243/0x290 fs/open.c:1280 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f2890f39ea9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f288f4ac0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f2891067f80 RCX: 00007f2890f39ea9 RDX: 000000000000275a RSI: 0000000020000a80 RDI: ffffffffffffff9c RBP: 00007f2890f864a4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f2891067f80 R15: 00007ffcbcb13a28