[ 1247.273952][ T5248] veth1: left promiscuous mode [ 1260.671640][ T5329] Mirror/redirect action on [ 1284.294446][ C3] irq 4: nobody cared (try booting with the "irqpoll" option) [ 1284.294861][ C3] CPU: 3 UID: 0 PID: 5187 Comm: perl Not tainted 6.12.0-rc1-virtme #1 [ 1284.295108][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1284.295482][ C3] Call Trace: [ 1284.295622][ C3] <IRQ> [ 1284.295716][ C3] dump_stack_lvl+0x82/0xd0 [ 1284.295900][ C3] __report_bad_irq+0x5f/0x180 [ 1284.296066][ C3] note_interrupt+0x6b3/0x860 [ 1284.296237][ C3] handle_irq_event+0x16d/0x1c0 [ 1284.296404][ C3] handle_edge_irq+0x1fa/0xb60 [ 1284.296572][ C3] __common_interrupt+0x82/0x170 [ 1284.296736][ C3] common_interrupt+0x81/0xa0 [ 1284.296912][ C3] </IRQ> [ 1284.296997][ C3] <TASK> [ 1284.297079][ C3] asm_common_interrupt+0x26/0x40 [ 1284.297243][ C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70 [ 1284.297451][ C3] Code: 10 e8 81 cb 87 fd 48 89 ef e8 99 3c 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 d5 37 5b 57 <74> 0e 5b 5d c3 cc cc cc cc e8 cf 0c ad fd eb dc 0f 1f 44 00 00 5b [ 1284.298030][ C3] RSP: 0018:ffffc90001d4faa0 EFLAGS: 00000286 [ 1284.298249][ C3] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff57be68d [ 1284.298498][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffa8a89141 [ 1284.298746][ C3] RBP: ffffffffac6b7420 R08: 0000000000000001 R09: fffffbfff57b97d0 [ 1284.298988][ C3] R10: ffffffffabdcbe87 R11: 0000000000000000 R12: 00000000ffffffff [ 1284.299228][ C3] R13: 0000000000000001 R14: ffffffffac6b7528 R15: 00000000ffffffff [ 1284.299476][ C3] ? _raw_spin_unlock_irqrestore+0x51/0x70 [ 1284.299687][ C3] uart_write+0x220/0x920 [ 1284.299815][ C3] process_output_block+0x13e/0x790 [ 1284.299976][ C3] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1284.300177][ C3] n_tty_write+0x40c/0x790 [ 1284.300348][ C3] ? __pfx_n_tty_write+0x10/0x10 [ 1284.300509][ C3] ? trace_lock_acquire+0x14d/0x1f0 [ 1284.300670][ C3] ? __pfx_woken_wake_function+0x10/0x10 [ 1284.300826][ C3] ? iterate_tty_write+0x8f/0x540 [ 1284.300984][ C3] ? lock_acquire+0x32/0xc0 [ 1284.301144][ C3] ? iterate_tty_write+0x8f/0x540 [ 1284.301309][ C3] iterate_tty_write+0x222/0x540 [ 1284.301470][ C3] ? tty_ldisc_ref_wait+0x28/0x80 [ 1284.301638][ C3] file_tty_write.constprop.0+0x1cf/0x360 [ 1284.301804][ C3] vfs_write+0xa77/0x11d0 [ 1284.301928][ C3] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1284.302094][ C3] ? __pfx_vfs_write+0x10/0x10 [ 1284.302254][ C3] ? clockevents_program_event+0xf6/0x300 [ 1284.302423][ C3] ? clockevents_program_event+0x1ea/0x300 [ 1284.302624][ C3] ksys_write+0xf5/0x1e0 [ 1284.302748][ C3] ? __pfx_ksys_write+0x10/0x10 [ 1284.302914][ C3] do_syscall_64+0xc1/0x1d0 [ 1284.303073][ C3] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1284.303268][ C3] RIP: 0033:0x7fbdd8104957 [ 1284.303433][ 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 [ 1284.303976][ C3] RSP: 002b:00007ffec170da08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1284.304227][ C3] RAX: ffffffffffffffda RBX: 0000561ac21152b0 RCX: 00007fbdd8104957 [ 1284.304459][ C3] RDX: 0000000000000001 RSI: 0000561ac21152b0 RDI: 0000000000000001 [ 1284.304696][ C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000 [ 1284.304926][ C3] R10: 0000000000000001 R11: 0000000000000246 R12: 0000561ac21005e0 [ 1284.305157][ C3] R13: 0000561ac20e12a0 R14: 0000000000000001 R15: 0000561ac21005e0 [ 1284.305405][ C3] </TASK> [ 1284.305528][ C3] handlers: [ 1284.305651][ C3] [<ffffffffa736d590>] serial8250_interrupt [ 1284.306405][ C3] Disabling IRQ #4 [ 1343.808648][ T5508] tc (5508) used greatest stack depth: 23600 bytes left