[  483.578201] tc (5643) used greatest stack depth: 11992 bytes left
[  491.129081] irq 4: nobody cared (try booting with the "irqpoll" option)
[  491.129181] CPU: 3 UID: 0 PID: 4808 Comm: perl Not tainted 6.11.0-rc5-virtme #1
[  491.129230] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  491.129304] Call Trace:
[  491.129327]  <IRQ>
[  491.129350]  dump_stack_lvl+0x55/0x70
[  491.129383]  __report_bad_irq+0x2b/0xc0
[  491.129422]  note_interrupt+0x2a7/0x2f0
[  491.129449]  handle_irq_event+0x72/0x80
[  491.129474]  handle_edge_irq+0x8b/0x230
[  491.129499]  __common_interrupt+0x3c/0xb0
[  491.129524]  common_interrupt+0x80/0x90
[  491.129553]  </IRQ>
[  491.129578]  <TASK>
[  491.129594]  asm_common_interrupt+0x26/0x40
[  491.129623] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30
[  491.129658] 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 bc 88 49 6c <74> 05 c3 cc cc cc cc 0f 1f 44 00 00 c3 cc cc cc cc 0f 1f 00 90 90
[  491.129764] RSP: 0018:ffffbac040df3d60 EFLAGS: 00000286
[  491.129795] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000017
[  491.129840] RDX: ffffffff93786f1d RSI: 0000000000000286 RDI: ffffffff950f9360
[  491.129889] RBP: ffff9ef7c1f08000 R08: 0000007265a24d45 R09: 0000000000000001
[  491.129934] R10: ffff9ef7c128f1f8 R11: 0000000000000000 R12: ffffffff950f9360
[  491.129979] R13: 0000000000000286 R14: ffff9ef7c128ec00 R15: ffff9ef7c128f000
[  491.130021]  ? rpm_suspend+0x1ad/0x5e0
[  491.130055]  uart_write+0x89/0x150
[  491.130086]  n_tty_write+0x1a6/0x520
[  491.130114]  ? __pfx_woken_wake_function+0x10/0x10
[  491.130149]  file_tty_write.constprop.0+0x14d/0x330
[  491.130184]  vfs_write+0x332/0x460
[  491.130219]  ksys_write+0x63/0xe0
[  491.130250]  do_syscall_64+0x9e/0x1a0
[  491.130277]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  491.130317] RIP: 0033:0x7f48d704f957
[  491.130346] 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
[  491.130447] RSP: 002b:00007ffe18895dd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  491.130496] RAX: ffffffffffffffda RBX: 0000558422dc31f0 RCX: 00007f48d704f957
[  491.130541] RDX: 0000000000000001 RSI: 0000558422dc31f0 RDI: 0000000000000001
[  491.130585] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[  491.130630] R10: 0000000000000001 R11: 0000000000000246 R12: 0000558422daf580
[  491.130683] R13: 0000558422d902a0 R14: 0000000000000001 R15: 0000558422daf580
[  491.130730]  </TASK>
[  491.130747] handlers:
[  491.130760] [<000000001b4879ea>] serial8250_interrupt
[  491.130801] Disabling IRQ #4