[ 329.623519] Mirror/redirect action on [ 340.476426] irq 4: nobody cared (try booting with the "irqpoll" option) [ 340.476564] CPU: 3 PID: 8228 Comm: perl Not tainted 6.10.0-rc1-virtme #1 [ 340.476631] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 340.476742] Call Trace: [ 340.476772] [ 340.476800] dump_stack_lvl+0x55/0x70 [ 340.476851] __report_bad_irq+0x2b/0xc0 [ 340.476891] note_interrupt+0x2a7/0x2f0 [ 340.476933] handle_irq_event+0x72/0x80 [ 340.476975] handle_edge_irq+0x8b/0x230 [ 340.477015] __common_interrupt+0x3c/0xb0 [ 340.477056] common_interrupt+0x80/0x90 [ 340.477100] [ 340.477127] [ 340.477151] asm_common_interrupt+0x26/0x40 [ 340.477196] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30 [ 340.477250] 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 95 0b 6d <74> 05 c3 cc cc cc cc 0f 1f 44 00 00 c3 cc cc cc cc 0f 1f 00 90 90 [ 340.477420] RSP: 0018:ffff9df188fe3d60 EFLAGS: 00000286 [ 340.477475] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000017 [ 340.477552] RDX: ffffffff92b6fb5d RSI: 0000000000000282 RDI: ffffffff944e2540 [ 340.477622] RBP: ffff8d8781db8000 R08: 0000004f5858e1ee R09: 0000000000000001 [ 340.477681] R10: ffff8d8782490df8 R11: 0000000000000000 R12: ffffffff944e2540 [ 340.477750] R13: 0000000000000282 R14: ffff8d8782490400 R15: ffff8d8782490c00 [ 340.477822] ? rpm_suspend+0x1ad/0x5e0 [ 340.477868] uart_write+0x89/0x160 [ 340.477908] n_tty_write+0x1a6/0x520 [ 340.477951] ? __pfx_woken_wake_function+0x10/0x10 [ 340.478004] file_tty_write.constprop.0+0x14d/0x330 [ 340.478058] vfs_write+0x32f/0x460 [ 340.478102] ksys_write+0x63/0xe0 [ 340.478144] do_syscall_64+0x9e/0x1a0 [ 340.478189] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 340.478244] RIP: 0033:0x7f1e2724c957 [ 340.478284] 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 [ 340.478437] RSP: 002b:00007ffcde324848 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 340.478514] RAX: ffffffffffffffda RBX: 000055d1e2a81110 RCX: 00007f1e2724c957 [ 340.478583] RDX: 0000000000000001 RSI: 000055d1e2a81110 RDI: 0000000000000001 [ 340.478652] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000 [ 340.478716] R10: 0000000000000001 R11: 0000000000000246 R12: 000055d1e2a6d560 [ 340.478786] R13: 000055d1e2a4e2a0 R14: 0000000000000001 R15: 000055d1e2a6d560 [ 340.478857] [ 340.478879] handlers: [ 340.478910] [<00000000c0ca7693>] serial8250_interrupt [ 340.478964] Disabling IRQ #4