[ 1730.598334][ C3] irq 4: nobody cared (try booting with the "irqpoll" option) [ 1730.598752][ C3] CPU: 3 UID: 0 PID: 8057 Comm: perl Not tainted 6.11.0-rc3-virtme #1 [ 1730.599036][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1730.599464][ C3] Call Trace: [ 1730.599612][ C3] [ 1730.599712][ C3] dump_stack_lvl+0x82/0xd0 [ 1730.599913][ C3] __report_bad_irq+0x5f/0x180 [ 1730.600104][ C3] note_interrupt+0x6b3/0x860 [ 1730.600296][ C3] handle_irq_event+0x16d/0x1c0 [ 1730.600484][ C3] handle_edge_irq+0x1fa/0xb60 [ 1730.600679][ C3] __common_interrupt+0x82/0x170 [ 1730.600876][ C3] common_interrupt+0x7e/0x90 [ 1730.601067][ C3] [ 1730.601162][ C3] [ 1730.601264][ C3] asm_common_interrupt+0x26/0x40 [ 1730.601456][ C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70 [ 1730.601698][ C3] Code: 10 e8 61 0c 8e fd 48 89 ef e8 09 7d 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 b5 48 a2 5f <74> 0e 5b 5d c3 cc cc cc cc e8 af 33 b2 fd eb dc 0f 1f 44 00 00 5b [ 1730.602335][ C3] RSP: 0018:ffffc9000225fab8 EFLAGS: 00000286 [ 1730.602575][ C3] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff47373ff [ 1730.602854][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffa0617fe1 [ 1730.603140][ C3] RBP: ffffffffa427b360 R08: 0000000000000001 R09: fffffbfff4732510 [ 1730.603414][ C3] R10: ffffffffa3992887 R11: 0000000000000000 R12: ffffffffa427b468 [ 1730.603695][ C3] R13: ffff8880058be400 R14: ffffffffa427b360 R15: 0000000000000286 [ 1730.603985][ C3] ? _raw_spin_unlock_irqrestore+0x51/0x70 [ 1730.604223][ C3] uart_write+0x13e/0x320 [ 1730.604366][ C3] process_output_block+0x13e/0x790 [ 1730.604561][ C3] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1730.604802][ C3] n_tty_write+0x412/0x7a0 [ 1730.604994][ C3] ? __pfx_n_tty_write+0x10/0x10 [ 1730.605174][ C3] ? trace_lock_acquire+0x14d/0x1f0 [ 1730.605368][ C3] ? __pfx_woken_wake_function+0x10/0x10 [ 1730.605561][ C3] ? iterate_tty_write+0x95/0x540 [ 1730.605744][ C3] ? lock_acquire+0x32/0xc0 [ 1730.605926][ C3] ? iterate_tty_write+0x95/0x540 [ 1730.606114][ C3] iterate_tty_write+0x228/0x540 [ 1730.606304][ C3] ? tty_ldisc_ref_wait+0x28/0x80 [ 1730.606490][ C3] file_tty_write.constprop.0+0x1db/0x370 [ 1730.606682][ C3] vfs_write+0xa1b/0x10b0 [ 1730.606824][ C3] ? __pfx___lock_release+0x10/0x10 [ 1730.607009][ C3] ? trace_lock_acquire+0x14d/0x1f0 [ 1730.607195][ C3] ? __might_fault+0xc3/0x170 [ 1730.607379][ C3] ? lock_acquire+0x32/0xc0 [ 1730.607564][ C3] ? __pfx_vfs_write+0x10/0x10 [ 1730.607760][ C3] ? __might_fault+0x11b/0x170 [ 1730.607952][ C3] ? __rseq_handle_notify_resume+0x354/0x4e0 [ 1730.608187][ C3] ? __fget_light+0x53/0x1e0 [ 1730.608387][ C3] ksys_write+0xf5/0x1e0 [ 1730.608535][ C3] ? __pfx_ksys_write+0x10/0x10 [ 1730.608741][ C3] do_syscall_64+0xc1/0x1d0 [ 1730.608928][ C3] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1730.609165][ C3] RIP: 0033:0x7fb3245a1957 [ 1730.609360][ 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 [ 1730.610026][ C3] RSP: 002b:00007fff4231e018 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1730.610302][ C3] RAX: ffffffffffffffda RBX: 000055b67e0ec310 RCX: 00007fb3245a1957 [ 1730.610564][ C3] RDX: 0000000000000001 RSI: 000055b67e0ec310 RDI: 0000000000000001 [ 1730.610828][ C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000 [ 1730.611093][ C3] R10: 0000000000000001 R11: 0000000000000246 R12: 000055b67e0d85c0 [ 1730.611365][ C3] R13: 000055b67e0b92a0 R14: 0000000000000001 R15: 000055b67e0d85c0 [ 1730.611639][ C3] [ 1730.611771][ C3] handlers: [ 1730.611911][ C3] [] serial8250_interrupt [ 1730.612329][ C3] Disabling IRQ #4