[ 422.436620] Mirror/redirect action on [ 433.249058] irq 4: nobody cared (try booting with the "irqpoll" option) [ 433.249212] CPU: 3 PID: 8046 Comm: perl Not tainted 6.9.0-virtme #1 [ 433.249281] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 433.249385] Call Trace: [ 433.249419] [ 433.249453] dump_stack_lvl+0x55/0x70 [ 433.249507] __report_bad_irq+0x2b/0xc0 [ 433.249552] note_interrupt+0x2a7/0x2f0 [ 433.249590] handle_irq_event+0x72/0x80 [ 433.249628] handle_edge_irq+0x8b/0x230 [ 433.249667] __common_interrupt+0x3c/0xb0 [ 433.249706] common_interrupt+0x80/0x90 [ 433.249749] [ 433.249773] [ 433.249795] asm_common_interrupt+0x26/0x40 [ 433.249845] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30 [ 433.249899] 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 dc a5 ab 7d <74> 05 c3 cc cc cc cc 0f 1f 44 00 00 c3 cc cc cc cc 0f 1f 00 90 90 [ 433.250052] RSP: 0018:ffffb63fc884bd60 EFLAGS: 00000286 [ 433.250108] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000017 [ 433.250179] RDX: ffffffff8216f2bd RSI: 0000000000000282 RDI: ffffffff83ae0540 [ 433.250248] RBP: ffff993301ec4000 R08: 00000064f1a073b2 R09: 0000000000000001 [ 433.250319] R10: ffff993301eeb1f8 R11: 0000000000000000 R12: ffffffff83ae0540 [ 433.250389] R13: 0000000000000282 R14: ffff993301eeac00 R15: ffff993301eeb000 [ 433.250461] ? rpm_suspend+0x1ad/0x5e0 [ 433.250510] uart_write+0x89/0x160 [ 433.250557] n_tty_write+0x1a6/0x520 [ 433.250600] ? __pfx_woken_wake_function+0x10/0x10 [ 433.250661] file_tty_write.constprop.0+0x14d/0x330 [ 433.250713] vfs_write+0x32f/0x460 [ 433.250759] ksys_write+0x63/0xe0 [ 433.250796] do_syscall_64+0x9e/0x1a0 [ 433.250835] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 433.250888] RIP: 0033:0x7fb8f88c9957 [ 433.250930] 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 [ 433.251084] RSP: 002b:00007fffb8519e38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 433.251155] RAX: ffffffffffffffda RBX: 000056270149a110 RCX: 00007fb8f88c9957 [ 433.251226] RDX: 0000000000000001 RSI: 000056270149a110 RDI: 0000000000000001 [ 433.251297] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000 [ 433.251367] R10: 0000000000000001 R11: 0000000000000246 R12: 0000562701486560 [ 433.251439] R13: 00005627014672a0 R14: 0000000000000001 R15: 0000562701486560 [ 433.251511] [ 433.251538] handlers: [ 433.251559] [<00000000d5a7fad6>] serial8250_interrupt [ 433.251617] Disabling IRQ #4