rcu: INFO: rcu_preempt self-detected stall on CPU rcu: 0-....: (10166 ticks this GP) idle=18e4/1/0x4000000000000000 softirq=45324/45614 fqs=5095 rcu: hardirqs softirqs csw/system rcu: number: 1387055 1165 0 rcu: cputime: 25405 27090 40 ==> 52510(ms) rcu: (t=10502 jiffies g=51225 q=1852 ncpus=2) CPU: 0 PID: 11762 Comm: syz.0.1422 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:seqcount_lockdep_reader_access+0x17f/0x1c0 include/linux/seqlock.h:105 Code: 00 4d 85 e4 75 16 e8 90 90 0f 00 eb 15 e8 89 90 0f 00 e8 14 77 f1 08 4d 85 e4 74 ea e8 7a 90 0f 00 fb 48 c7 04 24 0e 36 e0 45 <4b> c7 04 3e 00 00 00 00 66 43 c7 44 3e 09 00 00 43 c6 44 3e 0b 00 RSP: 0018:ffffc90000007b60 EFLAGS: 00000246 RAX: ffffffff81760046 RBX: 0000000000000000 RCX: ffff8880316ebc00 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000007c18 R08: ffffffff90d94607 R09: 1ffffffff21b28c0 R10: dffffc0000000000 R11: fffffbfff21b28c1 R12: 0000000000000200 R13: dffffc0000000000 R14: 1ffff92000000f6c R15: dffffc0000000000 FS: 00007fc14fe2e6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c337ed6 CR3: 0000000076e7f000 CR4: 00000000003506f0 DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: ktime_get+0x35/0x280 kernel/time/timekeeping.c:846 hrtimer_forward_now include/linux/hrtimer.h:509 [inline] mac80211_hwsim_beacon+0x156/0x1b0 drivers/net/wireless/virtual/mac80211_hwsim.c:2304 __run_hrtimer kernel/time/hrtimer.c:1750 [inline] __hrtimer_run_queues+0x51e/0xc40 kernel/time/hrtimer.c:1814 hrtimer_run_softirq+0x187/0x2b0 kernel/time/hrtimer.c:1831 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 cd e6 0a 00 48 85 db 75 16 e8 c3 e6 0a 00 eb 15 e8 bc e6 0a 00 e8 47 cd ec 08 48 85 db 74 ea e8 ad 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:ffffc90003537a00 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000200 RCX: 0000000000080000 RDX: ffffc90015bd5000 RSI: 0000000000003d82 RDI: 0000000000003d83 RBP: ffffc90003537ad0 R08: ffffffff90d94607 R09: 1ffffffff21b28c0 R10: dffffc0000000000 R11: fffffbfff21b28c1 R12: 1ffff920006a6f44 R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff920006a6f65 smp_call_function_single+0x352/0x580 kernel/smp.c:647 task_function_call kernel/events/core.c:120 [inline] perf_install_in_context+0x591/0x8e0 kernel/events/core.c:2948 __do_sys_perf_event_open kernel/events/core.c:12915 [inline] __se_sys_perf_event_open+0x17fa/0x1c20 kernel/events/core.c:12567 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: 0033:0x7fc14ef8f749 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:00007fc14fe2e038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007fc14f1e5fa0 RCX: 00007fc14ef8f749 RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000140 RBP: 00007fc14f013f91 R08: 0000000000000002 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007fc14f1e6038 R14: 00007fc14f1e5fa0 R15: 00007ffc4b7c0738