[ 1281.154130][ T5477] Mirror/redirect action on [ 1356.677884][ C3] irq 4: nobody cared (try booting with the "irqpoll" option) [ 1356.678306][ C3] CPU: 3 UID: 0 PID: 5326 Comm: perl Not tainted 6.12.0-rc6-virtme #1 [ 1356.678571][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1356.678975][ C3] Call Trace: [ 1356.679113][ C3] [ 1356.679216][ C3] dump_stack_lvl+0x82/0xd0 [ 1356.679406][ C3] __report_bad_irq+0x5f/0x180 [ 1356.679592][ C3] note_interrupt+0x6b3/0x860 [ 1356.679772][ C3] handle_irq_event+0x16d/0x1c0 [ 1356.679953][ C3] handle_edge_irq+0x1fa/0xb60 [ 1356.680140][ C3] __common_interrupt+0x82/0x170 [ 1356.680339][ C3] common_interrupt+0x81/0xa0 [ 1356.680512][ C3] [ 1356.680599][ C3] [ 1356.680685][ C3] asm_common_interrupt+0x26/0x40 [ 1356.680851][ C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70 [ 1356.681061][ C3] Code: 10 e8 41 63 86 fd 48 89 ef e8 a9 d5 86 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 55 ac d9 63 <74> 0e 5b 5d c3 cc cc cc cc e8 0f bc ab fd eb dc 0f 1f 44 00 00 5b [ 1356.681628][ C3] RSP: 0018:ffffc90002d7faa0 EFLAGS: 00000286 [ 1356.681837][ C3] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff3ec16f1 [ 1356.682078][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff9c2a1a81 [ 1356.682324][ C3] RBP: ffffffff9fecf4a0 R08: 0000000000000001 R09: fffffbfff3ebc7d0 [ 1356.682565][ C3] R10: ffffffff9f5e3e87 R11: ffff88800a372300 R12: 00000000ffffffff [ 1356.682816][ C3] R13: 0000000000000001 R14: ffffffff9fecf5a8 R15: 00000000ffffffff [ 1356.683079][ C3] ? _raw_spin_unlock_irqrestore+0x51/0x70 [ 1356.683298][ C3] uart_write+0x220/0x920 [ 1356.683433][ C3] process_output_block+0x13e/0x790 [ 1356.683602][ C3] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1356.683811][ C3] n_tty_write+0x40c/0x790 [ 1356.683989][ C3] ? __pfx_n_tty_write+0x10/0x10 [ 1356.684151][ C3] ? trace_lock_acquire+0x14d/0x1f0 [ 1356.684319][ C3] ? __pfx_woken_wake_function+0x10/0x10 [ 1356.684482][ C3] ? iterate_tty_write+0x8f/0x540 [ 1356.684647][ C3] ? lock_acquire+0x32/0xc0 [ 1356.684811][ C3] ? iterate_tty_write+0x8f/0x540 [ 1356.684978][ C3] iterate_tty_write+0x222/0x540 [ 1356.685155][ C3] ? tty_ldisc_ref_wait+0x28/0x80 [ 1356.685343][ C3] file_tty_write.constprop.0+0x1cf/0x360 [ 1356.685518][ C3] vfs_write+0xa81/0x11e0 [ 1356.685656][ C3] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1356.685830][ C3] ? __pfx_vfs_write+0x10/0x10 [ 1356.685998][ C3] ? clockevents_program_event+0xf6/0x300 [ 1356.686178][ C3] ? clockevents_program_event+0x1ea/0x300 [ 1356.686390][ C3] ksys_write+0xf5/0x1e0 [ 1356.686529][ C3] ? __pfx_ksys_write+0x10/0x10 [ 1356.686702][ C3] do_syscall_64+0xc1/0x1d0 [ 1356.686868][ C3] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1356.687069][ C3] RIP: 0033:0x7f110f527957 [ 1356.687238][ 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 [ 1356.687796][ C3] RSP: 002b:00007ffca8468308 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1356.688051][ C3] RAX: ffffffffffffffda RBX: 000055b6a3beb3f0 RCX: 00007f110f527957 [ 1356.688287][ C3] RDX: 0000000000000001 RSI: 000055b6a3beb3f0 RDI: 0000000000000001 [ 1356.688523][ C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000 [ 1356.688761][ C3] R10: 0000000000000001 R11: 0000000000000246 R12: 000055b6a3bd65e0 [ 1356.689003][ C3] R13: 000055b6a3bb72a0 R14: 0000000000000001 R15: 000055b6a3bd65e0 [ 1356.689259][ C3] [ 1356.689382][ C3] handlers: [ 1356.689506][ C3] [] serial8250_interrupt [ 1356.689941][ C3] Disabling IRQ #4