[ 925.748490][ T4648] Mirror/redirect action on [ 1004.733597][ C3] irq 4: nobody cared (try booting with the "irqpoll" option) [ 1004.734036][ C3] CPU: 3 PID: 4501 Comm: perl Not tainted 6.10.0-rc4-virtme #1 [ 1004.734322][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1004.734732][ C3] Call Trace: [ 1004.734880][ C3] [ 1004.734984][ C3] dump_stack_lvl+0x82/0xd0 [ 1004.735181][ C3] __report_bad_irq+0x5f/0x180 [ 1004.735371][ C3] note_interrupt+0x6b3/0x860 [ 1004.735558][ C3] handle_irq_event+0x16d/0x1c0 [ 1004.735739][ C3] handle_edge_irq+0x1fa/0xb60 [ 1004.735926][ C3] __common_interrupt+0x82/0x170 [ 1004.736113][ C3] common_interrupt+0x7e/0x90 [ 1004.736294][ C3] [ 1004.736390][ C3] [ 1004.736487][ C3] asm_common_interrupt+0x26/0x40 [ 1004.736671][ C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70 [ 1004.736917][ C3] Code: 10 e8 01 3d 92 fd 48 89 ef e8 79 ad 92 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 9c 66 4e <74> 0e 5b 5d c3 cc cc cc cc e8 cf 1e b6 fd eb dc 0f 1f 44 00 00 5b [ 1004.737551][ C3] RSP: 0018:ffffc90000dcfab8 EFLAGS: 00000286 [ 1004.737784][ C3] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff697031a [ 1004.738055][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffb19d2b81 [ 1004.738334][ C3] RBP: ffffffffb5443020 R08: 0000000000000001 R09: fffffbfff696b4a8 [ 1004.738609][ C3] R10: ffffffffb4b5a547 R11: 0000000000000000 R12: ffffffffb5443128 [ 1004.738887][ C3] R13: ffff88800633c000 R14: ffffffffb5443020 R15: 0000000000000282 [ 1004.739173][ C3] ? _raw_spin_unlock_irqrestore+0x51/0x70 [ 1004.739408][ C3] uart_write+0x13e/0x320 [ 1004.739557][ C3] process_output_block+0x13e/0x790 [ 1004.739743][ C3] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1004.739969][ C3] n_tty_write+0x412/0x7a0 [ 1004.740159][ C3] ? __pfx_n_tty_write+0x10/0x10 [ 1004.740338][ C3] ? trace_lock_acquire+0x14d/0x1f0 [ 1004.740524][ C3] ? __pfx_woken_wake_function+0x10/0x10 [ 1004.740706][ C3] ? iterate_tty_write+0x95/0x540 [ 1004.740886][ C3] ? lock_acquire+0x32/0xc0 [ 1004.741065][ C3] ? iterate_tty_write+0x95/0x540 [ 1004.741251][ C3] iterate_tty_write+0x228/0x540 [ 1004.741435][ C3] ? tty_ldisc_ref_wait+0x28/0x80 [ 1004.741617][ C3] file_tty_write.constprop.0+0x1db/0x370 [ 1004.741800][ C3] vfs_write+0xa18/0x10b0 [ 1004.741939][ C3] ? __pfx___lock_release+0x10/0x10 [ 1004.742116][ C3] ? trace_lock_acquire+0x14d/0x1f0 [ 1004.742293][ C3] ? __might_fault+0xc3/0x170 [ 1004.742471][ C3] ? lock_acquire+0x32/0xc0 [ 1004.742655][ C3] ? __pfx_vfs_write+0x10/0x10 [ 1004.742843][ C3] ? __might_fault+0x11b/0x170 [ 1004.743028][ C3] ? __rseq_handle_notify_resume+0x354/0x4e0 [ 1004.743252][ C3] ? __fget_light+0x53/0x1e0 [ 1004.743441][ C3] ksys_write+0xf5/0x1e0 [ 1004.743583][ C3] ? __pfx_ksys_write+0x10/0x10 [ 1004.743794][ C3] do_syscall_64+0xc1/0x1d0 [ 1004.743987][ C3] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1004.744212][ C3] RIP: 0033:0x7f0191a3f957 [ 1004.744402][ 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 [ 1004.745037][ C3] RSP: 002b:00007fff204b4f08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1004.745320][ C3] RAX: ffffffffffffffda RBX: 0000560c17991310 RCX: 00007f0191a3f957 [ 1004.745593][ C3] RDX: 0000000000000001 RSI: 0000560c17991310 RDI: 0000000000000001 [ 1004.745866][ C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000 [ 1004.746134][ C3] R10: 0000000000000001 R11: 0000000000000246 R12: 0000560c1797d5c0 [ 1004.746407][ C3] R13: 0000560c1795e2a0 R14: 0000000000000001 R15: 0000560c1797d5c0 [ 1004.746697][ C3] [ 1004.746833][ C3] handlers: [ 1004.746969][ C3] [] serial8250_interrupt [ 1004.747349][ C3] Disabling IRQ #4