[ 1164.642936][ T8394] Mirror/redirect action on [ 1222.052761][ C3] irq 4: nobody cared (try booting with the "irqpoll" option) [ 1222.053146][ C3] CPU: 3 PID: 8247 Comm: perl Not tainted 6.10.0-virtme #1 [ 1222.053381][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1222.053728][ C3] Call Trace: [ 1222.053859][ C3] [ 1222.053942][ C3] dump_stack_lvl+0x82/0xd0 [ 1222.054114][ C3] __report_bad_irq+0x5f/0x180 [ 1222.054271][ C3] note_interrupt+0x6b3/0x860 [ 1222.054428][ C3] handle_irq_event+0x16d/0x1c0 [ 1222.054614][ C3] handle_edge_irq+0x1fa/0xb60 [ 1222.054773][ C3] __common_interrupt+0x82/0x170 [ 1222.054929][ C3] common_interrupt+0x7e/0x90 [ 1222.055108][ C3] [ 1222.055202][ C3] [ 1222.055282][ C3] asm_common_interrupt+0x26/0x40 [ 1222.055436][ C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70 [ 1222.055643][ C3] Code: 10 e8 41 40 8e fd 48 89 ef e8 e9 b0 8e fd 81 e3 00 02 00 00 75 1d 9c 58 f6 c4 02 75 29 48 85 db 74 01 fb 65 ff 0d 15 c8 c2 6d <74> 0e 5b 5d c3 cc cc cc cc e8 af 78 b2 fd eb dc 0f 1f 44 00 00 5b [ 1222.056190][ C3] RSP: 0018:ffffc900082bfab8 EFLAGS: 00000286 [ 1222.056385][ C3] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff2af718e [ 1222.056623][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff924100c1 [ 1222.056855][ C3] RBP: ffffffff9607a2a0 R08: 0000000000000001 R09: fffffbfff2af22b8 [ 1222.057089][ C3] R10: ffffffff957915c7 R11: 0000000000000000 R12: ffffffff9607a3a8 [ 1222.057328][ C3] R13: ffff88800613e400 R14: ffffffff9607a2a0 R15: 0000000000000286 [ 1222.057574][ C3] ? _raw_spin_unlock_irqrestore+0x51/0x70 [ 1222.057773][ C3] uart_write+0x13e/0x320 [ 1222.057896][ C3] process_output_block+0x13e/0x790 [ 1222.058054][ C3] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1222.058247][ C3] n_tty_write+0x412/0x7a0 [ 1222.058414][ C3] ? __pfx_n_tty_write+0x10/0x10 [ 1222.058568][ C3] ? trace_lock_acquire+0x14d/0x1f0 [ 1222.058723][ C3] ? __pfx_woken_wake_function+0x10/0x10 [ 1222.058876][ C3] ? iterate_tty_write+0x95/0x540 [ 1222.059027][ C3] ? lock_acquire+0x32/0xc0 [ 1222.059179][ C3] ? iterate_tty_write+0x95/0x540 [ 1222.059334][ C3] iterate_tty_write+0x228/0x540 [ 1222.059490][ C3] ? tty_ldisc_ref_wait+0x28/0x80 [ 1222.059645][ C3] file_tty_write.constprop.0+0x1db/0x370 [ 1222.059799][ C3] vfs_write+0xa1b/0x10b0 [ 1222.059925][ C3] ? __pfx___lock_release+0x10/0x10 [ 1222.060079][ C3] ? trace_lock_acquire+0x14d/0x1f0 [ 1222.060237][ C3] ? __might_fault+0xc3/0x170 [ 1222.060390][ C3] ? lock_acquire+0x32/0xc0 [ 1222.060557][ C3] ? __pfx_vfs_write+0x10/0x10 [ 1222.060725][ C3] ? __might_fault+0x11b/0x170 [ 1222.060880][ C3] ? __rseq_handle_notify_resume+0x354/0x4e0 [ 1222.061069][ C3] ? __fget_light+0x53/0x1e0 [ 1222.061229][ C3] ksys_write+0xf5/0x1e0 [ 1222.061347][ C3] ? __pfx_ksys_write+0x10/0x10 [ 1222.061503][ C3] do_syscall_64+0xc1/0x1d0 [ 1222.061657][ C3] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1222.061851][ C3] RIP: 0033:0x7f43ff331957 [ 1222.062014][ C3] 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 [ 1222.062569][ C3] RSP: 002b:00007ffefe626178 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1222.062809][ C3] RAX: ffffffffffffffda RBX: 00005618e4771310 RCX: 00007f43ff331957 [ 1222.063037][ C3] RDX: 0000000000000001 RSI: 00005618e4771310 RDI: 0000000000000001 [ 1222.063273][ C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000 [ 1222.063502][ C3] R10: 0000000000000001 R11: 0000000000000246 R12: 00005618e475d5c0 [ 1222.063739][ C3] R13: 00005618e473e2a0 R14: 0000000000000001 R15: 00005618e475d5c0 [ 1222.063978][ C3] [ 1222.064099][ C3] handlers: [ 1222.064219][ C3] [] serial8250_interrupt [ 1222.064605][ C3] Disabling IRQ #4