[ 1019.502527][ C3] irq 4: nobody cared (try booting with the "irqpoll" option)
[ 1019.502931][ C3] CPU: 3 PID: 3396 Comm: perl Not tainted 6.9.0-virtme #1
[ 1019.503151][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1019.503569][ C3] Call Trace:
[ 1019.503704][ C3]
[ 1019.503801][ C3] dump_stack_lvl+0x82/0xd0
[ 1019.504002][ C3] __report_bad_irq+0x5f/0x180
[ 1019.504207][ C3] note_interrupt+0x6b3/0x860
[ 1019.504388][ C3] handle_irq_event+0x16d/0x1c0
[ 1019.504566][ C3] handle_edge_irq+0x1fa/0xb60
[ 1019.504748][ C3] __common_interrupt+0x82/0x170
[ 1019.504935][ C3] common_interrupt+0x7e/0x90
[ 1019.505134][ C3]
[ 1019.505239][ C3]
[ 1019.505327][ C3] asm_common_interrupt+0x26/0x40
[ 1019.505510][ C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[ 1019.505746][ C3] Code: 10 e8 51 33 98 fd 48 89 ef e8 c9 a3 98 fd 81 e3 00 02 00 00 75 1d 9c 58 f6 c4 02 75 29 48 85 db 74 01 fb 65 ff 0d d5 3d 2c 4d <74> 0e 5b 5d c3 cc cc cc cc e8 7f c2 bb fd eb dc 0f 1f 44 00 00 5b
[ 1019.506364][ C3] RSP: 0018:ffffc90000b7fa88 EFLAGS: 00000286
[ 1019.506585][ C3] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff6bec386
[ 1019.506886][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffb2d78a41
[ 1019.507150][ C3] RBP: ffffffffb6842520 R08: 0000000000000001 R09: fffffbfff6be74b0
[ 1019.507400][ C3] R10: ffffffffb5f3a587 R11: 0000000000000000 R12: 00000000000004b9
[ 1019.507647][ C3] R13: ffffffffb6842628 R14: ffffffffb6842520 R15: ffff888002e20000
[ 1019.507907][ C3] ? _raw_spin_unlock_irqrestore+0x51/0x70
[ 1019.508126][ C3] uart_write+0x224/0x450
[ 1019.508272][ C3] process_output_block+0x13e/0x790
[ 1019.508445][ C3] ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1019.508653][ C3] n_tty_write+0x412/0x7a0
[ 1019.508828][ C3] ? __pfx_n_tty_write+0x10/0x10
[ 1019.509003][ C3] ? trace_lock_acquire+0x14d/0x1f0
[ 1019.509178][ C3] ? __pfx_woken_wake_function+0x10/0x10
[ 1019.509345][ C3] ? iterate_tty_write+0x95/0x540
[ 1019.509508][ C3] ? lock_acquire+0x32/0xc0
[ 1019.509674][ C3] ? iterate_tty_write+0x95/0x540
[ 1019.509853][ C3] iterate_tty_write+0x228/0x540
[ 1019.510023][ C3] ? tty_ldisc_ref_wait+0x28/0x80
[ 1019.510197][ C3] file_tty_write.constprop.0+0x1db/0x370
[ 1019.510364][ C3] vfs_write+0x9dc/0x1070
[ 1019.510494][ C3] ? __pfx___lock_release+0x10/0x10
[ 1019.510668][ C3] ? trace_lock_acquire+0x14d/0x1f0
[ 1019.510831][ C3] ? __might_fault+0xc3/0x170
[ 1019.510999][ C3] ? lock_acquire+0x32/0xc0
[ 1019.511172][ C3] ? __pfx_vfs_write+0x10/0x10
[ 1019.511349][ C3] ? __might_fault+0x11b/0x170
[ 1019.511526][ C3] ? __rseq_handle_notify_resume+0x354/0x4e0
[ 1019.511743][ C3] ? __fget_light+0x53/0x1e0
[ 1019.511923][ C3] ksys_write+0xf5/0x1e0
[ 1019.512067][ C3] ? __pfx_ksys_write+0x10/0x10
[ 1019.512263][ C3] do_syscall_64+0xc3/0x1d0
[ 1019.512446][ C3] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1019.512657][ C3] RIP: 0033:0x7f22871a9957
[ 1019.512833][ C3] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
[ 1019.513414][ C3] RSP: 002b:00007ffffc613ea8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 1019.513684][ C3] RAX: ffffffffffffffda RBX: 000055799c3aa320 RCX: 00007f22871a9957
[ 1019.513938][ C3] RDX: 0000000000000001 RSI: 000055799c3aa320 RDI: 0000000000000001
[ 1019.514183][ C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[ 1019.514426][ C3] R10: 0000000000000001 R11: 0000000000000246 R12: 000055799c3965c0
[ 1019.514666][ C3] R13: 000055799c3772a0 R14: 0000000000000001 R15: 000055799c3965c0
[ 1019.514920][ C3]
[ 1019.515066][ C3] handlers:
[ 1019.515195][ C3] [] serial8250_interrupt
[ 1019.515569][ C3] Disabling IRQ #4
WAIT TIMEOUT stderr
Ctrl-C stderr
Ctrl-C stderr
WAIT TIMEOUT stderr