[ 334.087139] Mirror/redirect action on [ 345.040533] irq 4: nobody cared (try booting with the "irqpoll" option) [ 345.040675] CPU: 3 PID: 8232 Comm: perl Not tainted 6.10.0-virtme #1 [ 345.040719] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 345.040798] Call Trace: [ 345.040817] [ 345.040837] dump_stack_lvl+0x55/0x70 [ 345.040873] __report_bad_irq+0x2b/0xc0 [ 345.040904] note_interrupt+0x2a7/0x2f0 [ 345.040941] handle_irq_event+0x72/0x80 [ 345.040970] handle_edge_irq+0x8b/0x230 [ 345.040997] __common_interrupt+0x3c/0xb0 [ 345.041027] common_interrupt+0x80/0x90 [ 345.041055] [ 345.041072] [ 345.041089] asm_common_interrupt+0x26/0x40 [ 345.041129] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30 [ 345.041165] 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 fc 27 ca 6e <74> 05 c3 cc cc cc cc 0f 1f 44 00 00 c3 cc cc cc cc 0f 1f 00 90 90 [ 345.041274] RSP: 0018:ffffa89b48e4bd60 EFLAGS: 00000286 [ 345.041306] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000017 [ 345.041353] RDX: ffffffff90f7db2d RSI: 0000000000000282 RDI: ffffffff928f7580 [ 345.041399] RBP: ffff9cb701d4c000 R08: 0000005068fdf4a5 R09: 0000000000000001 [ 345.041457] R10: ffff9cb7023025f8 R11: 0000000000000000 R12: ffffffff928f7580 [ 345.041517] R13: 0000000000000282 R14: ffff9cb702302000 R15: ffff9cb702302400 [ 345.041565] ? rpm_suspend+0x1ad/0x5e0 [ 345.041609] uart_write+0x89/0x150 [ 345.041639] n_tty_write+0x1a6/0x520 [ 345.041669] ? __pfx_woken_wake_function+0x10/0x10 [ 345.041716] file_tty_write.constprop.0+0x14d/0x330 [ 345.041748] vfs_write+0x332/0x460 [ 345.041781] ksys_write+0x63/0xe0 [ 345.041807] do_syscall_64+0x9e/0x1a0 [ 345.041838] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 345.041872] RIP: 0033:0x7f33df26c957 [ 345.041900] 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 [ 345.042007] RSP: 002b:00007ffd723c4e38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 345.042065] RAX: ffffffffffffffda RBX: 000055aec76e0110 RCX: 00007f33df26c957 [ 345.042112] RDX: 0000000000000001 RSI: 000055aec76e0110 RDI: 0000000000000001 [ 345.042172] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000 [ 345.042216] R10: 0000000000000001 R11: 0000000000000246 R12: 000055aec76cc560 [ 345.042262] R13: 000055aec76ad2a0 R14: 0000000000000001 R15: 000055aec76cc560 [ 345.042309] [ 345.042327] handlers: [ 345.042346] [<000000003805628b>] serial8250_interrupt [ 345.042385] Disabling IRQ #4