[ 1124.790480][ T7196] Mirror/redirect action on [ 1217.024628][ C3] irq 4: nobody cared (try booting with the "irqpoll" option) [ 1217.024993][ C3] CPU: 3 UID: 0 PID: 7049 Comm: perl Not tainted 6.11.0-virtme #1 [ 1217.025230][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1217.025575][ C3] Call Trace: [ 1217.025696][ C3] [ 1217.025780][ C3] dump_stack_lvl+0x82/0xd0 [ 1217.025960][ C3] __report_bad_irq+0x5f/0x180 [ 1217.026129][ C3] note_interrupt+0x6b3/0x860 [ 1217.026291][ C3] handle_irq_event+0x16d/0x1c0 [ 1217.026448][ C3] handle_edge_irq+0x1fa/0xb60 [ 1217.026610][ C3] __common_interrupt+0x82/0x170 [ 1217.026771][ C3] common_interrupt+0x7e/0x90 [ 1217.026925][ C3] [ 1217.027006][ C3] [ 1217.027086][ C3] asm_common_interrupt+0x26/0x40 [ 1217.027252][ C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70 [ 1217.027510][ C3] Code: 10 e8 f1 d9 8c fd 48 89 ef e8 99 4a 8d 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 25 06 81 67 <74> 0e 5b 5d c3 cc cc cc cc e8 6f 03 b1 fd eb dc 0f 1f 44 00 00 5b [ 1217.028055][ C3] RSP: 0018:ffffc9000287fab8 EFLAGS: 00000286 [ 1217.028259][ C3] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff3778239 [ 1217.028490][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff9882c071 [ 1217.028722][ C3] RBP: ffffffff9c4822a0 R08: 0000000000000001 R09: fffffbfff3773318 [ 1217.028958][ C3] R10: ffffffff9bb998c7 R11: 0000000000000000 R12: ffffffff9c4823a8 [ 1217.029189][ C3] R13: ffff888008031c00 R14: ffffffff9c4822a0 R15: 0000000000000286 [ 1217.029428][ C3] ? _raw_spin_unlock_irqrestore+0x51/0x70 [ 1217.029630][ C3] uart_write+0x13e/0x320 [ 1217.029760][ C3] process_output_block+0x13e/0x790 [ 1217.029918][ C3] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1217.030113][ C3] n_tty_write+0x412/0x7a0 [ 1217.030276][ C3] ? __pfx_n_tty_write+0x10/0x10 [ 1217.030433][ C3] ? trace_lock_acquire+0x14d/0x1f0 [ 1217.030592][ C3] ? __pfx_woken_wake_function+0x10/0x10 [ 1217.030749][ C3] ? iterate_tty_write+0x95/0x540 [ 1217.030904][ C3] ? lock_acquire+0x32/0xc0 [ 1217.031062][ C3] ? iterate_tty_write+0x95/0x540 [ 1217.031225][ C3] iterate_tty_write+0x228/0x540 [ 1217.031384][ C3] ? tty_ldisc_ref_wait+0x28/0x80 [ 1217.031545][ C3] file_tty_write.constprop.0+0x1db/0x370 [ 1217.031701][ C3] vfs_write+0xa1b/0x10b0 [ 1217.031828][ C3] ? __pfx___lock_release+0x10/0x10 [ 1217.031983][ C3] ? trace_lock_acquire+0x14d/0x1f0 [ 1217.032143][ C3] ? __might_fault+0xc3/0x170 [ 1217.032309][ C3] ? lock_acquire+0x32/0xc0 [ 1217.032462][ C3] ? __pfx_vfs_write+0x10/0x10 [ 1217.032619][ C3] ? __might_fault+0x11b/0x170 [ 1217.032777][ C3] ? __rseq_handle_notify_resume+0x354/0x4e0 [ 1217.032973][ C3] ? __fget_light+0x53/0x1e0 [ 1217.033132][ C3] ksys_write+0xf5/0x1e0 [ 1217.033249][ C3] ? __pfx_ksys_write+0x10/0x10 [ 1217.033415][ C3] do_syscall_64+0xc1/0x1d0 [ 1217.033572][ C3] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1217.033765][ C3] RIP: 0033:0x7f79eab26957 [ 1217.033925][ 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 [ 1217.034466][ C3] RSP: 002b:00007ffc1efb7558 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1217.034700][ C3] RAX: ffffffffffffffda RBX: 0000559327ba01f0 RCX: 00007f79eab26957 [ 1217.034928][ C3] RDX: 0000000000000001 RSI: 0000559327ba01f0 RDI: 0000000000000001 [ 1217.035154][ C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000 [ 1217.035381][ C3] R10: 0000000000000001 R11: 0000000000000246 R12: 0000559327b8b5e0 [ 1217.035617][ C3] R13: 0000559327b6c2a0 R14: 0000000000000001 R15: 0000559327b8b5e0 [ 1217.035859][ C3] [ 1217.035976][ C3] handlers: [ 1217.036096][ C3] [] serial8250_interrupt [ 1217.036650][ C3] Disabling IRQ #4