[ 372.294915] irq 4: nobody cared (try booting with the "irqpoll" option) [ 372.295062] CPU: 3 PID: 3096 Comm: perl Not tainted 6.9.0-rc4-virtme #1 [ 372.295124] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 372.295220] Call Trace: [ 372.295265] [ 372.295295] dump_stack_lvl+0x55/0x70 [ 372.295370] __report_bad_irq+0x2b/0xc0 [ 372.295428] note_interrupt+0x2a7/0x2f0 [ 372.295465] handle_irq_event+0x72/0x80 [ 372.295511] handle_edge_irq+0x8b/0x230 [ 372.295547] __common_interrupt+0x3e/0xb0 [ 372.295597] common_interrupt+0x81/0xa0 [ 372.295641] [ 372.295667] [ 372.295691] asm_common_interrupt+0x26/0x40 [ 372.295745] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30 [ 372.295795] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 c6 07 00 f7 c6 00 02 00 00 74 01 fb 65 ff 0d dc f4 ad 5a <74> 05 c3 cc cc cc cc 0f 1f 44 00 00 c3 cc cc cc cc 0f 1f 00 90 90 [ 372.295933] RSP: 0018:ffffb85fc0db3d38 EFLAGS: 00000286 [ 372.295982] RAX: 0000000000000000 RBX: ffffffffa68ce240 RCX: 0000000000000017 [ 372.296049] RDX: ffffffffa5149fce RSI: 0000000000000282 RDI: ffffffffa68ce240 [ 372.296115] RBP: 0000000000000001 R08: 00000056d979246b R09: 0000000000000001 [ 372.296181] R10: ffff9cca82d3d5f8 R11: 0000000000000000 R12: 0000000000000001 [ 372.296244] R13: 0000000000000000 R14: ffff9cca82d3d801 R15: ffff9cca81fa4000 [ 372.296310] ? rpm_suspend+0x1ae/0x5e0 [ 372.296368] uart_write+0x103/0x1d0 [ 372.296420] n_tty_write+0x1a4/0x520 [ 372.296469] ? __pfx_woken_wake_function+0x10/0x10 [ 372.296519] file_tty_write.constprop.0+0x15b/0x340 [ 372.296570] vfs_write+0x336/0x460 [ 372.296627] ksys_write+0x63/0xe0 [ 372.296665] do_syscall_64+0xa8/0x1b0 [ 372.296700] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 372.296749] RIP: 0033:0x7f590b7e2957 [ 372.296787] 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 [ 372.296924] RSP: 002b:00007fff67bd7308 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 372.296989] RAX: ffffffffffffffda RBX: 0000558c5639efd0 RCX: 00007f590b7e2957 [ 372.297055] RDX: 0000000000000001 RSI: 0000558c5639efd0 RDI: 0000000000000001 [ 372.297121] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000 [ 372.297185] R10: 0000000000000001 R11: 0000000000000246 R12: 0000558c5638b560 [ 372.297249] R13: 0000558c5636c2a0 R14: 0000000000000001 R15: 0000558c5638b560 [ 372.297316] [ 372.297341] handlers: [ 372.297360] [<00000000ba292a85>] serial8250_interrupt [ 372.297411] Disabling IRQ #4 WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr WAIT TIMEOUT stderr