[ 1199.574497][ T6158] Mirror/redirect action on [ 1254.430789][ C3] irq 4: nobody cared (try booting with the "irqpoll" option) [ 1254.431217][ C3] CPU: 3 UID: 0 PID: 6021 Comm: perl Not tainted 6.11.0-virtme #1 [ 1254.431482][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1254.431895][ C3] Call Trace: [ 1254.432033][ C3] [ 1254.432133][ C3] dump_stack_lvl+0x82/0xd0 [ 1254.432322][ C3] __report_bad_irq+0x5f/0x180 [ 1254.432508][ C3] note_interrupt+0x6b3/0x860 [ 1254.432688][ C3] handle_irq_event+0x16d/0x1c0 [ 1254.432860][ C3] handle_edge_irq+0x1fa/0xb60 [ 1254.433036][ C3] __common_interrupt+0x82/0x170 [ 1254.433215][ C3] common_interrupt+0x81/0xa0 [ 1254.433394][ C3] [ 1254.433495][ C3] [ 1254.433595][ C3] asm_common_interrupt+0x26/0x40 [ 1254.433780][ C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70 [ 1254.434002][ C3] Code: 10 e8 01 ea 87 fd 48 89 ef e8 b9 5a 88 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 cc 7b 49 <74> 0e 5b 5d c3 cc cc cc cc e8 7f 3f ad fd eb dc 0f 1f 44 00 00 5b [ 1254.434604][ C3] RSP: 0018:ffffc90000e6faa0 EFLAGS: 00000286 [ 1254.434832][ C3] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff737e0d8 [ 1254.435099][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffb687fd01 [ 1254.435359][ C3] RBP: ffffffffba4b43e0 R08: 0000000000000001 R09: fffffbfff73791d0 [ 1254.435621][ C3] R10: ffffffffb9bc8e87 R11: 0000000000000000 R12: 00000000ffffffff [ 1254.435880][ C3] R13: 0000000000000001 R14: ffffffffba4b44e8 R15: 00000000ffffffff [ 1254.436148][ C3] ? _raw_spin_unlock_irqrestore+0x51/0x70 [ 1254.436371][ C3] uart_write+0x220/0x920 [ 1254.436519][ C3] process_output_block+0x13e/0x790 [ 1254.436696][ C3] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1254.436917][ C3] n_tty_write+0x40c/0x790 [ 1254.437096][ C3] ? __pfx_n_tty_write+0x10/0x10 [ 1254.437265][ C3] ? trace_lock_acquire+0x14d/0x1f0 [ 1254.437441][ C3] ? __pfx_woken_wake_function+0x10/0x10 [ 1254.437619][ C3] ? iterate_tty_write+0x8f/0x540 [ 1254.437792][ C3] ? lock_acquire+0x32/0xc0 [ 1254.437964][ C3] ? iterate_tty_write+0x8f/0x540 [ 1254.438150][ C3] iterate_tty_write+0x222/0x540 [ 1254.438324][ C3] ? tty_ldisc_ref_wait+0x28/0x80 [ 1254.438504][ C3] file_tty_write.constprop.0+0x1cf/0x360 [ 1254.438678][ C3] vfs_write+0xa77/0x11d0 [ 1254.438813][ C3] ? __pfx___lock_release+0x10/0x10 [ 1254.438986][ C3] ? trace_lock_acquire+0x14d/0x1f0 [ 1254.439170][ C3] ? __might_fault+0xc3/0x170 [ 1254.439357][ C3] ? lock_acquire+0x32/0xc0 [ 1254.439533][ C3] ? __pfx_vfs_write+0x10/0x10 [ 1254.439718][ C3] ? __might_fault+0x11b/0x170 [ 1254.439917][ C3] ? __rseq_handle_notify_resume+0x354/0x4e0 [ 1254.440138][ C3] ksys_write+0xf5/0x1e0 [ 1254.440267][ C3] ? __pfx_ksys_write+0x10/0x10 [ 1254.440450][ C3] do_syscall_64+0xc1/0x1d0 [ 1254.440631][ C3] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1254.440845][ C3] RIP: 0033:0x7f8c80964957 [ 1254.441023][ 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 [ 1254.441632][ C3] RSP: 002b:00007fff79631e88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1254.441904][ C3] RAX: ffffffffffffffda RBX: 000055e2d1e532b0 RCX: 00007f8c80964957 [ 1254.442157][ C3] RDX: 0000000000000001 RSI: 000055e2d1e532b0 RDI: 0000000000000001 [ 1254.442411][ C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000 [ 1254.442667][ C3] R10: 0000000000000001 R11: 0000000000000246 R12: 000055e2d1e3e5e0 [ 1254.442919][ C3] R13: 000055e2d1e1f2a0 R14: 0000000000000001 R15: 000055e2d1e3e5e0 [ 1254.443187][ C3] [ 1254.443319][ C3] handlers: [ 1254.443453][ C3] [] serial8250_interrupt [ 1254.443878][ C3] Disabling IRQ #4