Process accounting resumed Process accounting resumed rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: 1-....: (1 GPs behind) idle=8734/1/0x4000000000000000 softirq=431634/431635 fqs=20999 rcu: (detected by 0, t=105005 jiffies, g=374145, q=52725 ncpus=2) Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 10312 Comm: syz-executor.3 Not tainted 6.5.0-rc1-next-20230714 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:native_apic_mem_write+0xc/0x20 Code: 1f 00 b8 01 00 00 00 e9 e2 1f 44 03 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 89 ff 89 b7 00 c0 5f ff bf 1f 44 03 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 90 90 RSP: 0018:ffff88806cf09cd8 EFLAGS: 00000046 RAX: ffffffff8111beb0 RBX: ffffffff852e1cc0 RCX: ffffffff8112aa11 RDX: 1ffffffff0a5c399 RSI: 0000000000000000 RDI: 00000000000000b0 RBP: ffff88806cf09d08 R08: 0000000000000001 R09: ffffed100d9e5059 R10: ffff88806cf282cf R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f8c9f006700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2ce25000 CR3: 000000004478e000 CR4: 0000000000350ee0 Call Trace: __sysvec_irq_work+0x55/0x2a0 sysvec_irq_work+0x33/0x90 asm_sysvec_irq_work+0x1a/0x20 RIP: 0010:__rcu_read_unlock+0xc8/0x4f0 Code: b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e 76 01 00 00 8b 85 f8 03 00 00 85 c0 75 58 <65> 48 8b 1c 25 00 8b 03 00 48 8d bb f4 03 00 00 48 b8 00 00 00 00 RSP: 0018:ffff88806cf09db8 EFLAGS: 00000206 RAX: 0000000000001b44 RBX: ffff88806cf3a300 RCX: ffffffff812d209f RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff81378761 RBP: ffffffff85616a00 R08: 0000000000000001 R09: fffffbfff0efa775 R10: ffffffff877d3baf R11: 0000000000000001 R12: 0000000000000001 R13: ffffffff8316ad00 R14: 0000000000000200 R15: dffffc0000000000 ieee80211_iterate_active_interfaces_atomic+0x95/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x59d/0xb60 hrtimer_run_softirq+0x14c/0x310 __do_softirq+0x1b7/0x7d4 irq_exit_rcu+0x93/0xc0 sysvec_apic_timer_interrupt+0x6e/0x90 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:_raw_spin_unlock_irqrestore+0x34/0x50 Code: c7 18 53 48 89 f3 48 8b 74 24 10 e8 c6 0e d8 fc 48 89 ef e8 8e 8c d8 fc 80 e7 02 74 06 e8 04 04 fe fc fb 65 ff 0d 94 d6 ad 7b <74> 07 5b 5d e9 03 2a 00 00 0f 1f 44 00 00 5b 5d e9 f7 29 00 00 0f RSP: 0018:ffff888045f57d78 EFLAGS: 00000246 RAX: 00000000000005e1 RBX: 0000000000000282 RCX: ffffffff812d209f RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8455b46c RBP: ffff88800fb9fc00 R08: 0000000000000001 R09: fffffbfff0efa775 R10: ffffffff877d3baf R11: 0000000000000001 R12: 0000000000000282 R13: ffff888045e33680 R14: 0000000000000000 R15: ffff8880442ca990 __do_sys_perf_event_open+0x1904/0x2a60 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 RIP: 0033:0x7f8ca1a90b19 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f8c9f006188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007f8ca1ba3f60 RCX: 00007f8ca1a90b19 RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000000020000580 RBP: 00007f8ca1aeaf6d R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd9329cd1f R14: 00007f8c9f006300 R15: 0000000000022000 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 00 b8 01 00 00 00 add %bh,0x1(%rax) 6: e9 e2 1f 44 03 jmpq 0x3441fed b: 66 90 xchg %ax,%ax d: 90 nop e: 90 nop f: 90 nop 10: 90 nop 11: 90 nop 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop 16: 90 nop 17: 90 nop 18: 90 nop 19: 90 nop 1a: 90 nop 1b: 90 nop 1c: 90 nop 1d: f3 0f 1e fa endbr64 21: 89 ff mov %edi,%edi 23: 89 b7 00 c0 5f ff mov %esi,-0xa04000(%rdi) * 29: e9 bf 1f 44 03 jmpq 0x3441fed <-- trapping instruction 2e: 66 66 2e 0f 1f 84 00 data16 nopw %cs:0x0(%rax,%rax,1) 35: 00 00 00 00 39: 0f 1f 40 00 nopl 0x0(%rax) 3d: 90 nop 3e: 90 nop