[ 43.010257][ T333] GACT probability NOT on [ 48.101000][ T396] Mirror/redirect action on [ 72.560397][ C3] irq 4: nobody cared (try booting with the "irqpoll" option) [ 72.560752][ C3] CPU: 3 PID: 225 Comm: perl Not tainted 6.8.0-rc6-virtme #1 [ 72.560998][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 72.561342][ C3] Call Trace: [ 72.561460][ C3] [ 72.561542][ C3] dump_stack_lvl+0x64/0xb0 [ 72.562000][ C3] __report_bad_irq+0x5f/0x180 [ 72.562156][ C3] note_interrupt+0x6b3/0x860 [ 72.562318][ C3] handle_irq_event+0x16d/0x1c0 [ 72.562502][ C3] handle_edge_irq+0x1fa/0xb60 [ 72.562673][ C3] __common_interrupt+0x7c/0x180 [ 72.562830][ C3] common_interrupt+0x7e/0x90 [ 72.562994][ C3] [ 72.563076][ C3] [ 72.563155][ C3] asm_common_interrupt+0x26/0x40 [ 72.563315][ C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70 [ 72.563515][ C3] Code: 10 e8 61 a3 a3 fd 48 89 ef e8 89 0f a4 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 85 35 b9 78 <74> 0e 5b 5d c3 cc cc cc cc e8 af cb c5 fd eb dc 0f 1f 44 00 00 5b [ 72.564056][ C3] RSP: 0018:ffffc90000abfa88 EFLAGS: 00000286 [ 72.564261][ C3] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff14d98d1 [ 72.564500][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff874a7d51 [ 72.564729][ C3] RBP: ffffffff8afaabe0 R08: 0000000000000001 R09: fffffbfff14d4a78 [ 72.564956][ C3] R10: ffffffff8a6a53c7 R11: 0000000000000000 R12: 00000000000008c2 [ 72.565190][ C3] R13: ffffffff8afaace8 R14: ffffffff8afaabe0 R15: ffff888002500000 [ 72.565428][ C3] ? _raw_spin_unlock_irqrestore+0x51/0x70 [ 72.565623][ C3] uart_write+0x220/0x440 [ 72.565747][ C3] process_output_block+0x13e/0x790 [ 72.565899][ C3] ? lockdep_hardirqs_on_prepare.part.0+0x1b1/0x370 [ 72.566088][ C3] n_tty_write+0x414/0x7a0 [ 72.566247][ C3] ? __pfx_n_tty_write+0x10/0x10 [ 72.566410][ C3] ? __pfx_woken_wake_function+0x10/0x10 [ 72.566578][ C3] ? lock_acquire+0x1c1/0x220 [ 72.566738][ C3] ? iterate_tty_write+0x95/0x540 [ 72.566896][ C3] iterate_tty_write+0x229/0x540 [ 72.567059][ C3] ? tty_ldisc_ref_wait+0x28/0x80 [ 72.567219][ C3] file_tty_write.constprop.0+0x1db/0x370 [ 72.567374][ C3] vfs_write+0x9e9/0x10a0 [ 72.567493][ C3] ? __pfx___lock_release+0x10/0x10 [ 72.567644][ C3] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 72.567799][ C3] ? __pfx_vfs_write+0x10/0x10 [ 72.567950][ C3] ? hrtimer_interrupt+0x30e/0x770 [ 72.568106][ C3] ? clockevents_program_event+0xf6/0x300 [ 72.568266][ C3] ? kvm_clock_get_cycles+0x18/0x30 [ 72.568427][ C3] ? __fget_light+0x54/0x1e0 [ 72.568590][ C3] ksys_write+0xf5/0x1e0 [ 72.568713][ C3] ? __pfx_ksys_write+0x10/0x10 [ 72.568880][ C3] do_syscall_64+0xc9/0x1e0 [ 72.569037][ C3] entry_SYSCALL_64_after_hwframe+0x6f/0x77 [ 72.569228][ C3] RIP: 0033:0x7f4b4092c957 [ 72.569386][ 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 [ 72.569921][ C3] RSP: 002b:00007ffdb99b6488 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 72.570148][ C3] RAX: ffffffffffffffda RBX: 0000561b1a8d9fb0 RCX: 00007f4b4092c957 [ 72.570384][ C3] RDX: 0000000000000001 RSI: 0000561b1a8d9fb0 RDI: 0000000000000001 [ 72.570613][ C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000 [ 72.570843][ C3] R10: 0000000000000001 R11: 0000000000000246 R12: 0000561b1a8c6590 [ 72.571072][ C3] R13: 0000561b1a8a72a0 R14: 0000000000000001 R15: 0000561b1a8c6590 [ 72.571319][ C3] [ 72.571436][ C3] handlers: [ 72.571556][ C3] [] serial8250_interrupt [ 72.572012][ C3] Disabling IRQ #4 WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr WAIT TIMEOUT stderr