[  464.884916] Mirror/redirect action on
[  464.886823] tc (8236) used greatest stack depth: 11992 bytes left
[  475.366768] irq 4: nobody cared (try booting with the "irqpoll" option)
[  475.366903] CPU: 3 UID: 0 PID: 7792 Comm: perl Not tainted 6.11.0-rc7-virtme #1
[  475.366969] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  475.367064] Call Trace:
[  475.367094]  <IRQ>
[  475.367122]  dump_stack_lvl+0x55/0x70
[  475.367166]  __report_bad_irq+0x2b/0xc0
[  475.367205]  note_interrupt+0x2a7/0x2f0
[  475.367233]  handle_irq_event+0x72/0x80
[  475.367265]  handle_edge_irq+0x8b/0x230
[  475.367296]  __common_interrupt+0x3c/0xb0
[  475.367329]  common_interrupt+0x80/0x90
[  475.367364]  </IRQ>
[  475.367380]  <TASK>
[  475.367399]  asm_common_interrupt+0x26/0x40
[  475.367439] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30
[  475.367486] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 c6 07 00 f7 c6 00 02 00 00 74 01 fb 65 ff 0d 3c 87 49 4c <74> 05 c3 cc cc cc cc 0f 1f 44 00 00 c3 cc cc cc cc 0f 1f 00 90 90
[  475.367607] RSP: 0018:ffffbc64902d7d60 EFLAGS: 00000286
[  475.367646] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000017
[  475.367704] RDX: ffffffffb378727d RSI: 0000000000000286 RDI: ffffffffb50f9360
[  475.367759] RBP: ffff9ed481db8000 R08: 0000006ec0049b01 R09: 0000000000000001
[  475.367816] R10: ffff9ed4812a55f8 R11: 0000000000000000 R12: ffffffffb50f9360
[  475.367865] R13: 0000000000000286 R14: ffff9ed4812a6000 R15: ffff9ed4812a5400
[  475.367926]  ? rpm_suspend+0x1ad/0x5e0
[  475.367961]  uart_write+0x89/0x150
[  475.367999]  n_tty_write+0x1a6/0x520
[  475.368037]  ? __pfx_woken_wake_function+0x10/0x10
[  475.368082]  file_tty_write.constprop.0+0x14d/0x330
[  475.368121]  vfs_write+0x332/0x460
[  475.368159]  ksys_write+0x63/0xe0
[  475.368193]  do_syscall_64+0x9e/0x1a0
[  475.368228]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  475.368264] RIP: 0033:0x7f33fbc33957
[  475.368292] 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
[  475.368415] RSP: 002b:00007ffc167e5828 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  475.368471] RAX: ffffffffffffffda RBX: 0000560a517751f0 RCX: 00007f33fbc33957
[  475.368526] RDX: 0000000000000001 RSI: 0000560a517751f0 RDI: 0000000000000001
[  475.368581] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[  475.368639] R10: 0000000000000001 R11: 0000000000000246 R12: 0000560a51761580
[  475.368689] R13: 0000560a517422a0 R14: 0000000000000001 R15: 0000560a51761580
[  475.368748]  </TASK>
[  475.368769] handlers:
[  475.368783] [<0000000046b065ce>] serial8250_interrupt
[  475.368819] Disabling IRQ #4