[ 2168.140382][T12822] tc (12822) used greatest stack depth: 22840 bytes left [ 2218.642894][ C3] irq 4: nobody cared (try booting with the "irqpoll" option) [ 2218.643342][ C3] CPU: 3 PID: 12526 Comm: perl Not tainted 6.8.0-rc5-virtme #1 [ 2218.643588][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 2218.643937][ C3] Call Trace: [ 2218.644067][ C3] [ 2218.644155][ C3] dump_stack_lvl+0x64/0xb0 [ 2218.644332][ C3] __report_bad_irq+0x5f/0x180 [ 2218.644501][ C3] note_interrupt+0x6b3/0x860 [ 2218.644668][ C3] handle_irq_event+0x16d/0x1c0 [ 2218.644828][ C3] handle_edge_irq+0x1fa/0xb60 [ 2218.644998][ C3] __common_interrupt+0x7c/0x180 [ 2218.645156][ C3] common_interrupt+0x7e/0x90 [ 2218.645310][ C3] [ 2218.645396][ C3] [ 2218.645484][ C3] asm_common_interrupt+0x26/0x40 [ 2218.645641][ C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70 [ 2218.645850][ C3] Code: 10 e8 c1 35 a4 fd 48 89 ef e8 e9 a1 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 e5 c7 f9 5e <74> 0e 5b 5d c3 cc cc cc cc e8 0f 5e c6 fd eb dc 0f 1f 44 00 00 5b [ 2218.646397][ C3] RSP: 0018:ffffc9000099fa88 EFLAGS: 00000286 [ 2218.646603][ C3] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff4858aea [ 2218.646848][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffa109eaf1 [ 2218.647082][ C3] RBP: ffffffffa4ba3d20 R08: 0000000000000001 R09: fffffbfff4853c78 [ 2218.647323][ C3] R10: ffffffffa429e3c7 R11: 0000000000000000 R12: 0000000000000295 [ 2218.647564][ C3] R13: ffffffffa4ba3e28 R14: ffffffffa4ba3d20 R15: ffff888004c80000 [ 2218.647810][ C3] ? _raw_spin_unlock_irqrestore+0x51/0x70 [ 2218.648011][ C3] uart_write+0x220/0x440 [ 2218.648144][ C3] process_output_block+0x13e/0x790 [ 2218.648306][ C3] ? lockdep_hardirqs_on_prepare.part.0+0x1b1/0x370 [ 2218.648514][ C3] n_tty_write+0x414/0x7a0 [ 2218.648678][ C3] ? __pfx_n_tty_write+0x10/0x10 [ 2218.648840][ C3] ? __pfx_woken_wake_function+0x10/0x10 [ 2218.649007][ C3] ? lock_acquire+0x1c1/0x220 [ 2218.649167][ C3] ? iterate_tty_write+0x95/0x540 [ 2218.649332][ C3] iterate_tty_write+0x229/0x540 [ 2218.649495][ C3] ? tty_ldisc_ref_wait+0x28/0x80 [ 2218.649656][ C3] file_tty_write.constprop.0+0x1db/0x370 [ 2218.649833][ C3] vfs_write+0x9e9/0x10a0 [ 2218.649961][ C3] ? lock_acquire+0x1c1/0x220 [ 2218.650122][ C3] ? __pfx_vfs_write+0x10/0x10 [ 2218.650285][ C3] ? __might_fault+0xc6/0x180 [ 2218.650456][ C3] ? __fget_light+0x54/0x1e0 [ 2218.650627][ C3] ksys_write+0xf5/0x1e0 [ 2218.650747][ C3] ? __pfx_ksys_write+0x10/0x10 [ 2218.650911][ C3] do_syscall_64+0xc9/0x1e0 [ 2218.651071][ C3] entry_SYSCALL_64_after_hwframe+0x6f/0x77 [ 2218.651264][ C3] RIP: 0033:0x7efcbb63c957 [ 2218.651431][ 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 [ 2218.651981][ C3] RSP: 002b:00007ffeefe39318 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 2218.652227][ C3] RAX: ffffffffffffffda RBX: 000055e09401c070 RCX: 00007efcbb63c957 [ 2218.652455][ C3] RDX: 0000000000000001 RSI: 000055e09401c070 RDI: 0000000000000001 [ 2218.652685][ C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000 [ 2218.652997][ C3] R10: 0000000000000001 R11: 0000000000000246 R12: 000055e094008590 [ 2218.653226][ C3] R13: 000055e093fe92a0 R14: 0000000000000001 R15: 000055e094008590 [ 2218.653462][ C3] [ 2218.653578][ C3] handlers: [ 2218.653695][ C3] [] serial8250_interrupt [ 2218.654431][ C3] Disabling IRQ #4 WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr WAIT TIMEOUT stderr