[ 1649.518913][    C3] irq 4: nobody cared (try booting with the "irqpoll" option)
[ 1649.519246][    C3] CPU: 3 PID: 13798 Comm: perl Not tainted 6.10.0-rc6-virtme #1
[ 1649.519477][    C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1649.519815][    C3] Call Trace:
[ 1649.519946][    C3]  <IRQ>
[ 1649.520029][    C3]  dump_stack_lvl+0x82/0xd0
[ 1649.520196][    C3]  __report_bad_irq+0x5f/0x180
[ 1649.520359][    C3]  note_interrupt+0x6b3/0x860
[ 1649.520516][    C3]  handle_irq_event+0x16d/0x1c0
[ 1649.520667][    C3]  handle_edge_irq+0x1fa/0xb60
[ 1649.520823][    C3]  __common_interrupt+0x82/0x170
[ 1649.520978][    C3]  common_interrupt+0x7e/0x90
[ 1649.521132][    C3]  </IRQ>
[ 1649.521213][    C3]  <TASK>
[ 1649.521293][    C3]  asm_common_interrupt+0x26/0x40
[ 1649.521456][    C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[ 1649.521652][    C3] Code: 10 e8 11 6d 91 fd 48 89 ef e8 89 dd 91 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 45 cc 65 6c <74> 0e 5b 5d c3 cc cc cc cc e8 df 4c b5 fd eb dc 0f 1f 44 00 00 5b
[ 1649.522464][    C3] RSP: 0018:ffffc900037dfab8 EFLAGS: 00000286
[ 1649.522670][    C3] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff2d70f33
[ 1649.522895][    C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff939dfc11
[ 1649.523123][    C3] RBP: ffffffff97448e60 R08: 0000000000000001 R09: fffffbfff2d6c0a8
[ 1649.523345][    C3] R10: ffffffff96b60547 R11: 0000000000000000 R12: ffffffff97448f68
[ 1649.523575][    C3] R13: ffff888004bf6400 R14: ffffffff97448e60 R15: 0000000000000286
[ 1649.523813][    C3]  ? _raw_spin_unlock_irqrestore+0x51/0x70
[ 1649.524009][    C3]  uart_write+0x13e/0x320
[ 1649.524128][    C3]  process_output_block+0x13e/0x790
[ 1649.524285][    C3]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1649.524487][    C3]  n_tty_write+0x412/0x7a0
[ 1649.524644][    C3]  ? __pfx_n_tty_write+0x10/0x10
[ 1649.524796][    C3]  ? trace_lock_acquire+0x14d/0x1f0
[ 1649.524952][    C3]  ? __pfx_woken_wake_function+0x10/0x10
[ 1649.525108][    C3]  ? iterate_tty_write+0x95/0x540
[ 1649.525258][    C3]  ? lock_acquire+0x32/0xc0
[ 1649.525408][    C3]  ? iterate_tty_write+0x95/0x540
[ 1649.525566][    C3]  iterate_tty_write+0x228/0x540
[ 1649.525721][    C3]  ? tty_ldisc_ref_wait+0x28/0x80
[ 1649.525876][    C3]  file_tty_write.constprop.0+0x1db/0x370
[ 1649.526030][    C3]  vfs_write+0xa1b/0x10b0
[ 1649.526149][    C3]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1649.526302][    C3]  ? __pfx_vfs_write+0x10/0x10
[ 1649.526455][    C3]  ? clockevents_program_event+0xf6/0x300
[ 1649.526619][    C3]  ? __fget_light+0x53/0x1e0
[ 1649.526774][    C3]  ksys_write+0xf5/0x1e0
[ 1649.526892][    C3]  ? __pfx_ksys_write+0x10/0x10
[ 1649.527055][    C3]  do_syscall_64+0xc1/0x1d0
[ 1649.527233][    C3]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1649.527426][    C3] RIP: 0033:0x7f47ada18957
[ 1649.527582][    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
[ 1649.528101][    C3] RSP: 002b:00007fffafa3c5b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 1649.528336][    C3] RAX: ffffffffffffffda RBX: 0000557dbc376310 RCX: 00007f47ada18957
[ 1649.528567][    C3] RDX: 0000000000000001 RSI: 0000557dbc376310 RDI: 0000000000000001
[ 1649.528801][    C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[ 1649.529028][    C3] R10: 0000000000000001 R11: 0000000000000246 R12: 0000557dbc3625c0
[ 1649.529248][    C3] R13: 0000557dbc3432a0 R14: 0000000000000001 R15: 0000557dbc3625c0
[ 1649.529480][    C3]  </TASK>
[ 1649.529593][    C3] handlers:
[ 1649.529710][    C3] [<ffffffff922f7c70>] serial8250_interrupt
[ 1649.530048][    C3] Disabling IRQ #4