[ 325.524147] tc (2950) used greatest stack depth: 12440 bytes left [ 333.695145] irq 4: nobody cared (try booting with the "irqpoll" option) [ 333.695280] CPU: 3 UID: 0 PID: 2110 Comm: perl Not tainted 6.11.0-rc3-virtme #1 [ 333.695346] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 333.695435] Call Trace: [ 333.695462] [ 333.695488] dump_stack_lvl+0x55/0x70 [ 333.695539] __report_bad_irq+0x2b/0xc0 [ 333.695578] note_interrupt+0x2a7/0x2f0 [ 333.695614] handle_irq_event+0x72/0x80 [ 333.695650] handle_edge_irq+0x8b/0x230 [ 333.695686] __common_interrupt+0x3c/0xb0 [ 333.695722] common_interrupt+0x80/0x90 [ 333.695760] [ 333.695785] [ 333.695810] asm_common_interrupt+0x26/0x40 [ 333.695849] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30 [ 333.695896] 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 cc a8 49 5f <74> 05 c3 cc cc cc cc 0f 1f 44 00 00 c3 cc cc cc cc 0f 1f 00 90 90 [ 333.696039] RSP: 0018:ffffa02e421ebd60 EFLAGS: 00000286 [ 333.696084] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000017 [ 333.696143] RDX: ffffffffa0786ded RSI: 0000000000000286 RDI: ffffffffa20f8560 [ 333.696199] RBP: ffff8e86c1f84000 R08: 0000004dc3f537c7 R09: 0000000000000001 [ 333.696262] R10: ffff8e86c28999f8 R11: 0000000000000000 R12: ffffffffa20f8560 [ 333.696326] R13: 0000000000000286 R14: ffff8e86c2899c00 R15: ffff8e86c2899800 [ 333.696384] ? rpm_suspend+0x1ad/0x5e0 [ 333.696423] uart_write+0x89/0x150 [ 333.696462] n_tty_write+0x1a6/0x520 [ 333.696496] ? __pfx_woken_wake_function+0x10/0x10 [ 333.696539] file_tty_write.constprop.0+0x14d/0x330 [ 333.696585] vfs_write+0x332/0x460 [ 333.696625] ksys_write+0x63/0xe0 [ 333.696662] do_syscall_64+0x9e/0x1a0 [ 333.696699] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 333.696747] RIP: 0033:0x7f09a90b6957 [ 333.696782] 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 [ 333.696922] RSP: 002b:00007ffed64d5838 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 333.696983] RAX: ffffffffffffffda RBX: 000055e8b5a3a0b0 RCX: 00007f09a90b6957 [ 333.697039] RDX: 0000000000000001 RSI: 000055e8b5a3a0b0 RDI: 0000000000000001 [ 333.697102] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000 [ 333.697155] R10: 0000000000000001 R11: 0000000000000246 R12: 000055e8b5a26580 [ 333.697210] R13: 000055e8b5a072a0 R14: 0000000000000001 R15: 000055e8b5a26580 [ 333.697274] [ 333.697298] handlers: [ 333.697318] [<000000002ff5039a>] serial8250_interrupt [ 333.697364] Disabling IRQ #4