[ 420.837040] Mirror/redirect action on [ 431.471348] irq 4: nobody cared (try booting with the "irqpoll" option) [ 431.471487] CPU: 3 PID: 8047 Comm: perl Not tainted 6.10.0-rc5-virtme #1 [ 431.471548] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 431.471638] Call Trace: [ 431.471666] <IRQ> [ 431.471693] dump_stack_lvl+0x55/0x70 [ 431.471737] __report_bad_irq+0x2b/0xc0 [ 431.471773] note_interrupt+0x2a7/0x2f0 [ 431.471805] handle_irq_event+0x72/0x80 [ 431.471839] handle_edge_irq+0x8b/0x230 [ 431.471871] __common_interrupt+0x3c/0xb0 [ 431.471905] common_interrupt+0x80/0x90 [ 431.471943] </IRQ> [ 431.471963] <TASK> [ 431.471980] asm_common_interrupt+0x26/0x40 [ 431.472020] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30 [ 431.472064] 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 ec 15 cb 67 <74> 05 c3 cc cc cc cc 0f 1f 44 00 00 c3 cc cc cc cc 0f 1f 00 90 90 [ 431.472189] RSP: 0018:ffffb2b00887bd60 EFLAGS: 00000286 [ 431.472232] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000017 [ 431.472287] RDX: ffffffff97f7085d RSI: 0000000000000286 RDI: ffffffff998e7500 [ 431.472338] RBP: ffff9c66c1f1c000 R08: 0000006483fcb37f R09: 0000000000000001 [ 431.472395] R10: ffff9c66c24cf5f8 R11: 0000000000000000 R12: ffffffff998e7500 [ 431.472451] R13: 0000000000000286 R14: ffff9c66c24cf800 R15: ffff9c66c24cf400 [ 431.472506] ? rpm_suspend+0x1ad/0x5e0 [ 431.472546] uart_write+0x89/0x150 [ 431.472588] n_tty_write+0x1a6/0x520 [ 431.472625] ? __pfx_woken_wake_function+0x10/0x10 [ 431.472671] file_tty_write.constprop.0+0x14d/0x330 [ 431.472720] vfs_write+0x32f/0x460 [ 431.472761] ksys_write+0x63/0xe0 [ 431.472796] do_syscall_64+0x9e/0x1a0 [ 431.472836] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 431.472885] RIP: 0033:0x7fd692741957 [ 431.472917] 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 [ 431.473052] RSP: 002b:00007ffc443d4888 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 431.473114] RAX: ffffffffffffffda RBX: 000055ffc0b7df10 RCX: 00007fd692741957 [ 431.473177] RDX: 0000000000000001 RSI: 000055ffc0b7df10 RDI: 0000000000000001 [ 431.473242] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000 [ 431.473298] R10: 0000000000000001 R11: 0000000000000246 R12: 000055ffc0b6a560 [ 431.473355] R13: 000055ffc0b4b2a0 R14: 0000000000000001 R15: 000055ffc0b6a560 [ 431.473411] </TASK> [ 431.473429] handlers: [ 431.473447] [<000000003f42f71d>] serial8250_interrupt [ 431.473497] Disabling IRQ #4