[ 839.159760][ T2612] Mirror/redirect action on [ 910.299592][ C3] irq 4: nobody cared (try booting with the "irqpoll" option) [ 910.300009][ C3] CPU: 3 PID: 2455 Comm: perl Not tainted 6.9.0-rc3-virtme #1 [ 910.300256][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 910.300604][ C3] Call Trace: [ 910.300726][ C3] [ 910.300813][ C3] dump_stack_lvl+0x82/0xd0 [ 910.300985][ C3] __report_bad_irq+0x5f/0x180 [ 910.301157][ C3] note_interrupt+0x6b3/0x860 [ 910.301325][ C3] handle_irq_event+0x16d/0x1c0 [ 910.301488][ C3] handle_edge_irq+0x1fa/0xb60 [ 910.301658][ C3] __common_interrupt+0x7c/0x180 [ 910.301830][ C3] common_interrupt+0x7e/0x90 [ 910.301997][ C3] [ 910.302085][ C3] [ 910.302165][ C3] asm_common_interrupt+0x26/0x40 [ 910.302325][ C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70 [ 910.302536][ C3] Code: 10 e8 71 d8 9a fd 48 89 ef e8 a9 48 9b 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 95 1d 6f 50 <74> 0e 5b 5d c3 cc cc cc cc e8 6f 45 be fd eb dc 0f 1f 44 00 00 5b [ 910.303098][ C3] RSP: 0018:ffffc9000220fa80 EFLAGS: 00000286 [ 910.303305][ C3] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff65690f0 [ 910.303547][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffaf94aa81 [ 910.303807][ C3] RBP: ffffffffb34291a0 R08: 0000000000000001 R09: fffffbfff65642b0 [ 910.304062][ C3] R10: ffffffffb2b21587 R11: 0000000000000000 R12: 00000000000000e4 [ 910.304317][ C3] R13: ffffffffb34292a8 R14: ffffffffb34291a0 R15: ffff888002430000 [ 910.304576][ C3] ? _raw_spin_unlock_irqrestore+0x51/0x70 [ 910.304808][ C3] uart_write+0x224/0x450 [ 910.304944][ C3] process_output_block+0x13e/0x790 [ 910.305118][ C3] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370 [ 910.305329][ C3] n_tty_write+0x412/0x7a0 [ 910.305504][ C3] ? __pfx_n_tty_write+0x10/0x10 [ 910.305679][ C3] ? trace_lock_acquire+0x135/0x1c0 [ 910.305848][ C3] ? __pfx_woken_wake_function+0x10/0x10 [ 910.306021][ C3] ? iterate_tty_write+0x95/0x540 [ 910.306190][ C3] ? lock_acquire+0x32/0xc0 [ 910.306358][ C3] ? iterate_tty_write+0x95/0x540 [ 910.306529][ C3] iterate_tty_write+0x228/0x540 [ 910.306698][ C3] ? tty_ldisc_ref_wait+0x28/0x80 [ 910.306866][ C3] file_tty_write.constprop.0+0x1db/0x370 [ 910.307029][ C3] ? find_held_lock+0x2c/0x110 [ 910.307194][ C3] vfs_write+0x9e5/0x10a0 [ 910.307320][ C3] ? __pfx___lock_release+0x10/0x10 [ 910.307482][ C3] ? trace_lock_acquire+0x135/0x1c0 [ 910.307644][ C3] ? lock_acquire+0x32/0xc0 [ 910.307798][ C3] ? __pfx_vfs_write+0x10/0x10 [ 910.307968][ C3] ? __might_fault+0x11b/0x170 [ 910.308128][ C3] ? __rseq_handle_notify_resume+0x354/0x4e0 [ 910.308334][ C3] ? __fget_light+0x53/0x1e0 [ 910.308497][ C3] ksys_write+0xf5/0x1e0 [ 910.308618][ C3] ? __pfx_ksys_write+0x10/0x10 [ 910.308786][ C3] do_syscall_64+0xc3/0x1d0 [ 910.308949][ C3] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 910.309142][ C3] RIP: 0033:0x7f982974e957 [ 910.309310][ 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 [ 910.309861][ C3] RSP: 002b:00007ffe22890068 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 910.310114][ C3] RAX: ffffffffffffffda RBX: 000055b078c51070 RCX: 00007f982974e957 [ 910.310346][ C3] RDX: 0000000000000001 RSI: 000055b078c51070 RDI: 0000000000000001 [ 910.310590][ C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000 [ 910.310836][ C3] R10: 0000000000000001 R11: 0000000000000246 R12: 000055b078c3d590 [ 910.311095][ C3] R13: 000055b078c1e2a0 R14: 0000000000000001 R15: 000055b078c3d590 [ 910.311362][ C3] [ 910.311487][ C3] handlers: [ 910.311614][ C3] [] serial8250_interrupt [ 910.312221][ C3] Disabling IRQ #4 WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr WAIT TIMEOUT stderr