[ 392.803845] Mirror/redirect action on [ 403.952061] irq 4: nobody cared (try booting with the "irqpoll" option) [ 403.952188] CPU: 3 UID: 0 PID: 25047 Comm: perl Not tainted 6.12.0-rc5-virtme #1 [ 403.952249] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 403.952325] Call Trace: [ 403.952352] <IRQ> [ 403.952377] dump_stack_lvl+0x55/0x70 [ 403.952422] __report_bad_irq+0x2b/0xc0 [ 403.952462] note_interrupt+0x2a7/0x2f0 [ 403.952494] handle_irq_event+0x72/0x80 [ 403.952525] handle_edge_irq+0x8b/0x230 [ 403.952555] __common_interrupt+0x3c/0xb0 [ 403.952593] common_interrupt+0x80/0x90 [ 403.952631] </IRQ> [ 403.952654] <TASK> [ 403.952676] asm_common_interrupt+0x26/0x40 [ 403.952716] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30 [ 403.952768] 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 1c 4a a8 53 <74> 05 c3 cc cc cc cc 0f 1f 44 00 00 c3 cc cc cc cc 0f 1f 00 90 90 [ 403.952892] RSP: 0018:ffffb7de872c3d60 EFLAGS: 00000286 [ 403.952935] RAX: 00000000ffffffff RBX: 0000000000000001 RCX: 0000000000000017 [ 403.952989] RDX: ffffffffac19c10d RSI: 0000000000000282 RDI: ffffffffadb0c120 [ 403.953042] RBP: ffff989dc1ba8000 R08: 0000005e1e89bc0c R09: 0000000000000001 [ 403.953099] R10: ffff989dc22a2df8 R11: 0000000000000000 R12: 0000000000000001 [ 403.953151] R13: ffffffffadb0c120 R14: 0000000000000282 R15: ffff989dc22a2c00 [ 403.953212] ? rpm_suspend+0x1ad/0x5e0 [ 403.953250] uart_write+0xb2/0x270 [ 403.953287] n_tty_write+0x1a3/0x520 [ 403.953323] ? __pfx_woken_wake_function+0x10/0x10 [ 403.953369] file_tty_write.constprop.0+0x147/0x330 [ 403.953418] vfs_write+0x33f/0x480 [ 403.953456] ksys_write+0x63/0xe0 [ 403.953488] do_syscall_64+0x9e/0x1a0 [ 403.953517] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 403.953557] RIP: 0033:0x7f3615fd8957 [ 403.953588] 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 [ 403.953704] RSP: 002b:00007ffd98327598 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 403.953758] RAX: ffffffffffffffda RBX: 00005632ae26c0b0 RCX: 00007f3615fd8957 [ 403.953810] RDX: 0000000000000001 RSI: 00005632ae26c0b0 RDI: 0000000000000001 [ 403.953864] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000 [ 403.953915] R10: 0000000000000001 R11: 0000000000000246 R12: 00005632ae258580 [ 403.953983] R13: 00005632ae2392a0 R14: 0000000000000001 R15: 00005632ae258580 [ 403.954042] </TASK> [ 403.954063] handlers: [ 403.954084] [<0000000067f06ed0>] serial8250_interrupt [ 403.954133] Disabling IRQ #4