rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: 0-....: (1 GPs behind) idle=711/1/0x4000000000000002 softirq=11971/11972 fqs=5246 (detected by 1, t=10502 jiffies, g=21749, q=2896) Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 5787 Comm: syz-executor.4 Not tainted 5.15.146-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 RIP: 0010:div64_u64 include/linux/math64.h:69 [inline] RIP: 0010:perf_swevent_set_period kernel/events/core.c:9485 [inline] RIP: 0010:perf_swevent_overflow kernel/events/core.c:9502 [inline] RIP: 0010:perf_swevent_event+0x424/0x550 kernel/events/core.c:9546 Code: 01 00 74 08 4c 89 f7 e8 7a 19 28 00 49 8b 1e 31 ff 48 89 de e8 9d 6a de ff 48 85 db 78 39 4a 8d 2c 3b 48 89 e8 31 d2 49 f7 f7 <49> 89 c5 49 0f af c7 49 89 dc 49 29 c4 4c 89 f7 be 08 00 00 00 e8 RSP: 0000:ffffc900000075e8 EFLAGS: 00000046 RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffff88801b51d940 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000002 R08: ffffffff81a1c383 R09: ffffed100f460c10 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88807a306070 R13: 1ffff1100f460c0e R14: ffff88807a306078 R15: 0000000000000002 FS: 0000555556ef5480(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055a1443c0848 CR3: 000000007d2fa000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: perf_tp_event+0x363/0xc40 kernel/events/core.c:9964 perf_trace_run_bpf_submit+0xf7/0x1d0 kernel/events/core.c:9938 perf_trace_preemptirq_template+0x31d/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 bd d0 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: 0000:ffffc90000007b00 EFLAGS: 00000206 RAX: 9eb8de0e41f20700 RBX: 1ffff92000000f68 RCX: ffffffff8162ee48 RDX: dffffc0000000000 RSI: ffffffff8a8b0f80 RDI: ffffffff8ad87e00 RBP: ffffc90000007bd8 R08: dffffc0000000000 R09: fffffbfff1f79e1a R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff8c923200 R13: ffff88801b51dd98 R14: ffffc90000007b40 R15: 1ffff92000000f64 __rcu_read_unlock+0x92/0x100 kernel/rcu/tree_plugin.h:422 rcu_read_unlock include/linux/rcupdate.h:728 [inline] ieee80211_rx_napi+0x1f2/0x380 net/mac80211/rx.c:5006 ieee80211_rx include/net/mac80211.h:4571 [inline] ieee80211_tasklet_handler+0x109/0x1b0 net/mac80211/main.c:235 tasklet_action_common+0x3cb/0x4a0 __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:finish_lock_switch+0x91/0x100 kernel/sched/core.c:4785 Code: 45 31 c9 68 e7 65 59 81 e8 ac 1a 09 00 48 83 c4 08 4c 89 ff e8 60 da fe ff 66 90 4c 89 ff e8 36 a2 cc 08 e8 31 3f 2d 00 fb 5b <41> 5c 41 5d 41 5e 41 5f c3 44 89 f1 80 e1 07 80 c1 03 38 c1 7c 87 RSP: 0000:ffffc90006bbf738 EFLAGS: 00000286 RAX: 9eb8de0e41f20700 RBX: ffff888079041df4 RCX: ffffffff8162ee48 RDX: dffffc0000000000 RSI: ffffffff8a8b0f80 RDI: ffffffff8ad87e00 RBP: ffffc90006bbf7b0 R08: dffffc0000000000 R09: fffffbfff1f79e1a R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: 1ffff1101734748b R14: ffff8880b9a3a458 R15: ffff8880b9a39700 finish_task_switch+0x134/0x630 kernel/sched/core.c:4902 context_switch kernel/sched/core.c:5033 [inline] __schedule+0x12cc/0x45b0 kernel/sched/core.c:6376 preempt_schedule_common+0x83/0xd0 kernel/sched/core.c:6552 preempt_schedule+0xd9/0xe0 kernel/sched/core.c:6577 preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:34 smp_call_function_single+0x484/0x530 kernel/smp.c:760 cpu_function_call kernel/events/core.c:153 [inline] perf_install_in_context+0x5a1/0xa90 kernel/events/core.c:2977 __do_sys_perf_event_open kernel/events/core.c:12672 [inline] __se_sys_perf_event_open+0x3608/0x4510 kernel/events/core.c:12266 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f36853d7da9 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:00007ffcaa7a8118 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007f3685506f80 RCX: 00007f36853d7da9 RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 00000000200003c0 RBP: 00007f368542447a R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000b05 R14: 00007f3685506f80 R15: 00007f3685506f80