[ 1056.129484][ T49] kworker/dying (49) used greatest stack depth: 21776 bytes left [ 1092.016052][ C3] irq 4: nobody cared (try booting with the "irqpoll" option) [ 1092.016439][ C3] CPU: 3 PID: 4153 Comm: perl Not tainted 6.9.0-rc6-virtme #1 [ 1092.016672][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1092.017019][ C3] Call Trace: [ 1092.017141][ C3] [ 1092.017226][ C3] dump_stack_lvl+0x82/0xd0 [ 1092.017398][ C3] __report_bad_irq+0x5f/0x180 [ 1092.017564][ C3] note_interrupt+0x6b3/0x860 [ 1092.017724][ C3] handle_irq_event+0x16d/0x1c0 [ 1092.017878][ C3] handle_edge_irq+0x1fa/0xb60 [ 1092.018045][ C3] __common_interrupt+0x7c/0x180 [ 1092.018204][ C3] common_interrupt+0x7e/0x90 [ 1092.018362][ C3] [ 1092.018442][ C3] [ 1092.018522][ C3] asm_common_interrupt+0x26/0x40 [ 1092.018674][ C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70 [ 1092.018873][ C3] Code: 10 e8 c1 7f 99 fd 48 89 ef e8 f9 ef 99 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 c5 c7 cd 62 <74> 0e 5b 5d c3 cc cc cc cc e8 0f ea bc fd eb dc 0f 1f 44 00 00 5b [ 1092.019395][ C3] RSP: 0018:ffffc9000430fa80 EFLAGS: 00000286 [ 1092.019585][ C3] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff40a9b86 [ 1092.019824][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff9d3600d1 [ 1092.020049][ C3] RBP: ffffffffa0e2e220 R08: 0000000000000001 R09: fffffbfff40a4cb0 [ 1092.020282][ C3] R10: ffffffffa0526587 R11: 0000000000000000 R12: 000000000000098d [ 1092.020518][ C3] R13: ffffffffa0e2e328 R14: ffffffffa0e2e220 R15: ffff888004950000 [ 1092.020759][ C3] ? _raw_spin_unlock_irqrestore+0x51/0x70 [ 1092.020966][ C3] uart_write+0x224/0x450 [ 1092.021092][ C3] process_output_block+0x13e/0x790 [ 1092.021255][ C3] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370 [ 1092.021455][ C3] n_tty_write+0x412/0x7a0 [ 1092.021616][ C3] ? __pfx_n_tty_write+0x10/0x10 [ 1092.021772][ C3] ? trace_lock_acquire+0x135/0x1c0 [ 1092.021923][ C3] ? __pfx_woken_wake_function+0x10/0x10 [ 1092.022074][ C3] ? iterate_tty_write+0x95/0x540 [ 1092.022225][ C3] ? lock_acquire+0x32/0xc0 [ 1092.022377][ C3] ? iterate_tty_write+0x95/0x540 [ 1092.022534][ C3] iterate_tty_write+0x228/0x540 [ 1092.022733][ C3] ? tty_ldisc_ref_wait+0x28/0x80 [ 1092.022893][ C3] file_tty_write.constprop.0+0x1db/0x370 [ 1092.023053][ C3] vfs_write+0x9e5/0x10a0 [ 1092.023177][ C3] ? __pfx___lock_release+0x10/0x10 [ 1092.023335][ C3] ? trace_lock_acquire+0x135/0x1c0 [ 1092.023485][ C3] ? lock_acquire+0x32/0xc0 [ 1092.023635][ C3] ? __pfx_vfs_write+0x10/0x10 [ 1092.023799][ C3] ? __might_fault+0x11b/0x170 [ 1092.023961][ C3] ? __rseq_handle_notify_resume+0x354/0x4e0 [ 1092.024159][ C3] ? __fget_light+0x53/0x1e0 [ 1092.024317][ C3] ksys_write+0xf5/0x1e0 [ 1092.024435][ C3] ? __pfx_ksys_write+0x10/0x10 [ 1092.024593][ C3] do_syscall_64+0xc3/0x1d0 [ 1092.024746][ C3] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1092.024944][ C3] RIP: 0033:0x7f5aee7e4957 [ 1092.025104][ 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 [ 1092.025624][ C3] RSP: 002b:00007fffe0719f98 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1092.025872][ C3] RAX: ffffffffffffffda RBX: 0000562f5ef58310 RCX: 00007f5aee7e4957 [ 1092.026104][ C3] RDX: 0000000000000001 RSI: 0000562f5ef58310 RDI: 0000000000000001 [ 1092.026328][ C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000 [ 1092.026548][ C3] R10: 0000000000000001 R11: 0000000000000246 R12: 0000562f5ef445c0 [ 1092.026769][ C3] R13: 0000562f5ef252a0 R14: 0000000000000001 R15: 0000562f5ef445c0 [ 1092.027003][ C3] [ 1092.027113][ C3] handlers: [ 1092.027232][ C3] [] serial8250_interrupt [ 1092.027556][ C3] Disabling IRQ #4 WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr WAIT TIMEOUT stderr