[  312.938400] tc (4391) used greatest stack depth: 11928 bytes left
[  320.825151] irq 4: nobody cared (try booting with the "irqpoll" option)
[  320.825294] CPU: 3 PID: 3211 Comm: perl Not tainted 6.9.0-rc3-virtme #1
[  320.825358] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  320.825462] Call Trace:
[  320.825490]  <IRQ>
[  320.825518]  dump_stack_lvl+0x55/0x70
[  320.825566]  __report_bad_irq+0x2b/0xc0
[  320.825610]  note_interrupt+0x2a7/0x2f0
[  320.825650]  handle_irq_event+0x72/0x80
[  320.825689]  handle_edge_irq+0x8b/0x230
[  320.825729]  __common_interrupt+0x3e/0xb0
[  320.825773]  common_interrupt+0x81/0xa0
[  320.825815]  </IRQ>
[  320.825840]  <TASK>
[  320.825862]  asm_common_interrupt+0x26/0x40
[  320.825903] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30
[  320.825959] 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 14 ce 4d <74> 05 c3 cc cc cc cc 0f 1f 44 00 00 c3 cc cc cc cc 0f 1f 00 90 90
[  320.826111] RSP: 0018:ffffa732005fbd38 EFLAGS: 00000286
[  320.826164] RAX: 0000000000000000 RBX: ffffffffb36cc240 RCX: 0000000000000017
[  320.826235] RDX: ffffffffb1f49ede RSI: 0000000000000282 RDI: ffffffffb36cc240
[  320.826306] RBP: 0000000000000001 R08: 0000004ac580e39d R09: 0000000000000001
[  320.826376] R10: ffff90ab41d67df8 R11: 0000000000000000 R12: 0000000000000001
[  320.826446] R13: 0000000000000000 R14: ffff90ab41d64401 R15: ffff90ab4205c000
[  320.826517]  ? rpm_suspend+0x1ae/0x5e0
[  320.826569]  uart_write+0x103/0x1d0
[  320.826614]  n_tty_write+0x1a4/0x520
[  320.826661]  ? __pfx_woken_wake_function+0x10/0x10
[  320.826716]  file_tty_write.constprop.0+0x15b/0x340
[  320.826766]  vfs_write+0x336/0x460
[  320.826813]  ksys_write+0x63/0xe0
[  320.826855]  do_syscall_64+0xa8/0x1b0
[  320.826900]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  320.826953] RIP: 0033:0x7fef34538957
[  320.826994] 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
[  320.827147] RSP: 002b:00007ffcbe923b88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  320.827218] RAX: ffffffffffffffda RBX: 0000557ee1f3fe70 RCX: 00007fef34538957
[  320.827288] RDX: 0000000000000001 RSI: 0000557ee1f3fe70 RDI: 0000000000000001
[  320.827358] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[  320.827428] R10: 0000000000000001 R11: 0000000000000246 R12: 0000557ee1f2c530
[  320.827507] R13: 0000557ee1f0d2a0 R14: 0000000000000001 R15: 0000557ee1f2c530
[  320.827580]  </TASK>
[  320.827606] handlers:
[  320.827635] [<000000006f18e79d>] serial8250_interrupt
[  320.827693] Disabling IRQ #4

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