[ 1329.676151][ T4921] Mirror/redirect action on [ 1383.164116][ C3] irq 4: nobody cared (try booting with the "irqpoll" option) [ 1383.164599][ C3] CPU: 3 UID: 0 PID: 4774 Comm: perl Not tainted 6.11.0-rc3-virtme #1 [ 1383.164834][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1383.165178][ C3] Call Trace: [ 1383.165302][ C3] [ 1383.165395][ C3] dump_stack_lvl+0x82/0xd0 [ 1383.165578][ C3] __report_bad_irq+0x5f/0x180 [ 1383.165746][ C3] note_interrupt+0x6b3/0x860 [ 1383.165907][ C3] handle_irq_event+0x16d/0x1c0 [ 1383.166065][ C3] handle_edge_irq+0x1fa/0xb60 [ 1383.166236][ C3] __common_interrupt+0x82/0x170 [ 1383.166806][ C3] common_interrupt+0x7e/0x90 [ 1383.166967][ C3] [ 1383.167056][ C3] [ 1383.167138][ C3] asm_common_interrupt+0x26/0x40 [ 1383.167297][ C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70 [ 1383.167505][ C3] Code: 10 e8 71 dd 8d fd 48 89 ef e8 19 4e 8e 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 75 17 82 6e <74> 0e 5b 5d c3 cc cc cc cc e8 bf 04 b2 fd eb dc 0f 1f 44 00 00 5b [ 1383.168063][ C3] RSP: 0018:ffffc9000117fab8 EFLAGS: 00000286 [ 1383.168272][ C3] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff2977831 [ 1383.168502][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff9181b121 [ 1383.168727][ C3] RBP: ffffffff9547d360 R08: 0000000000000001 R09: fffffbfff2972910 [ 1383.168958][ C3] R10: ffffffff94b94887 R11: 0000000000000000 R12: ffffffff9547d468 [ 1383.169193][ C3] R13: ffff8880055d4c00 R14: ffffffff9547d360 R15: 0000000000000286 [ 1383.169429][ C3] ? _raw_spin_unlock_irqrestore+0x51/0x70 [ 1383.169633][ C3] uart_write+0x13e/0x320 [ 1383.169761][ C3] process_output_block+0x13e/0x790 [ 1383.169917][ C3] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1383.170117][ C3] n_tty_write+0x412/0x7a0 [ 1383.170281][ C3] ? __pfx_n_tty_write+0x10/0x10 [ 1383.170433][ C3] ? trace_lock_acquire+0x14d/0x1f0 [ 1383.170587][ C3] ? __pfx_woken_wake_function+0x10/0x10 [ 1383.170743][ C3] ? iterate_tty_write+0x95/0x540 [ 1383.170896][ C3] ? lock_acquire+0x32/0xc0 [ 1383.171045][ C3] ? iterate_tty_write+0x95/0x540 [ 1383.171203][ C3] iterate_tty_write+0x228/0x540 [ 1383.171364][ C3] ? tty_ldisc_ref_wait+0x28/0x80 [ 1383.171527][ C3] file_tty_write.constprop.0+0x1db/0x370 [ 1383.171691][ C3] vfs_write+0xa1b/0x10b0 [ 1383.171812][ C3] ? __pfx___lock_release+0x10/0x10 [ 1383.171964][ C3] ? trace_lock_acquire+0x14d/0x1f0 [ 1383.172115][ C3] ? __might_fault+0xc3/0x170 [ 1383.172275][ C3] ? lock_acquire+0x32/0xc0 [ 1383.172438][ C3] ? __pfx_vfs_write+0x10/0x10 [ 1383.172598][ C3] ? __might_fault+0x11b/0x170 [ 1383.172767][ C3] ? __rseq_handle_notify_resume+0x354/0x4e0 [ 1383.172965][ C3] ? __fget_light+0x53/0x1e0 [ 1383.173126][ C3] ksys_write+0xf5/0x1e0 [ 1383.173251][ C3] ? __pfx_ksys_write+0x10/0x10 [ 1383.173422][ C3] do_syscall_64+0xc1/0x1d0 [ 1383.173592][ C3] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1383.173786][ C3] RIP: 0033:0x7f0794ad0957 [ 1383.173944][ 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 [ 1383.174480][ C3] RSP: 002b:00007ffc118d81c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1383.174708][ C3] RAX: ffffffffffffffda RBX: 0000561ab3d7d310 RCX: 00007f0794ad0957 [ 1383.174940][ C3] RDX: 0000000000000001 RSI: 0000561ab3d7d310 RDI: 0000000000000001 [ 1383.175184][ C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000 [ 1383.175420][ C3] R10: 0000000000000001 R11: 0000000000000246 R12: 0000561ab3d695c0 [ 1383.175650][ C3] R13: 0000561ab3d4a2a0 R14: 0000000000000001 R15: 0000561ab3d695c0 [ 1383.175903][ C3] [ 1383.176020][ C3] handlers: [ 1383.176141][ C3] [] serial8250_interrupt [ 1383.176688][ C3] Disabling IRQ #4