[ 327.023493] Mirror/redirect action on [ 337.837904] irq 4: nobody cared (try booting with the "irqpoll" option) [ 337.838002] CPU: 3 PID: 8231 Comm: perl Not tainted 6.10.0-virtme #1 [ 337.838049] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 337.838140] Call Trace: [ 337.838162] [ 337.838181] dump_stack_lvl+0x55/0x70 [ 337.838212] __report_bad_irq+0x2b/0xc0 [ 337.838240] note_interrupt+0x2a7/0x2f0 [ 337.838265] handle_irq_event+0x72/0x80 [ 337.838290] handle_edge_irq+0x8b/0x230 [ 337.838316] __common_interrupt+0x3c/0xb0 [ 337.838345] common_interrupt+0x80/0x90 [ 337.838375] [ 337.838391] [ 337.838404] asm_common_interrupt+0x26/0x40 [ 337.838445] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30 [ 337.838483] 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 a6 ca 56 <74> 05 c3 cc cc cc cc 0f 1f 44 00 00 c3 cc cc cc cc 0f 1f 00 90 90 [ 337.838579] RSP: 0018:ffffb1eec8a2bd60 EFLAGS: 00000286 [ 337.838615] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000017 [ 337.838660] RDX: ffffffffa8f7605d RSI: 0000000000000282 RDI: ffffffffaa8ee340 [ 337.838705] RBP: ffff8c41c1d58000 R08: 0000004ebc9ab873 R09: 0000000000000001 [ 337.838749] R10: ffff8c41c128d5f8 R11: 0000000000000000 R12: ffffffffaa8ee340 [ 337.838798] R13: 0000000000000282 R14: ffff8c41c128ec00 R15: ffff8c41c128d400 [ 337.838844] ? rpm_suspend+0x1ad/0x5e0 [ 337.838875] uart_write+0x89/0x150 [ 337.838903] n_tty_write+0x1a6/0x520 [ 337.838927] ? __pfx_woken_wake_function+0x10/0x10 [ 337.838959] file_tty_write.constprop.0+0x14d/0x330 [ 337.838991] vfs_write+0x332/0x460 [ 337.839017] ksys_write+0x63/0xe0 [ 337.839053] do_syscall_64+0x9e/0x1a0 [ 337.839092] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 337.839128] RIP: 0033:0x7f9375f1a957 [ 337.839151] 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 [ 337.839248] RSP: 002b:00007fff976cc128 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 337.839293] RAX: ffffffffffffffda RBX: 0000564618344110 RCX: 00007f9375f1a957 [ 337.839338] RDX: 0000000000000001 RSI: 0000564618344110 RDI: 0000000000000001 [ 337.839382] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000 [ 337.839449] R10: 0000000000000001 R11: 0000000000000246 R12: 0000564618330560 [ 337.839497] R13: 00005646183112a0 R14: 0000000000000001 R15: 0000564618330560 [ 337.839543] [ 337.839561] handlers: [ 337.839579] [<00000000ec5ce882>] serial8250_interrupt [ 337.839616] Disabling IRQ #4