I posted this as a bug to redhat's bugzilla I think in January of 2011.
-----Original Message-----
From: centos-bounces@xxxxxxxxxx [mailto:centos-bounces@xxxxxxxxxx] On Behalf Of Scott Johnson
Sent: Friday, December 09, 2011 11:39 PM
To: centos@xxxxxxxxxx
Subject: Unplugging DVI causes Disabling IRQ #11
I have some new PC hardware I'm using with the Intel H67 chipset. I created a bzImage I use for a PXE environment for a recovery mode, installing OS images, etc. The new mobo doesn't have a VGA port but instead DVI.
Everytime I unplug the DVI cable it seems to cause "Disabling IRQ #11". After that the PC is basically unusable. The /proc/interrupts shows that hdd, usb, nic, RAID controller for some reason all share the same interrupt. What the heck?
I tried booting with acpi=off and the bios doesn't seem to offer any IRQ/PnP options. Am I missing a specific driver in my bzImage for the
H67 chipset or any ideas of what I could try next? It's been a sad day.
bash-2.05b# cat /proc/interrupts
CPU0
0: 15185951 XT-PIC-XT timer
1: 4 XT-PIC-XT i8042
2: 0 XT-PIC-XT cascade
7: 75 XT-PIC-XT ehci_hcd:usb2
8: 1 XT-PIC-XT rtc
11: 2090574 XT-PIC-XT ahci, ehci_hcd:usb1, eth0, rr172x
I even see a similar error on a fresh CentOS 5.7 install:
irq 169: nobody cared (try booting with the "irqpoll" option)
Call Trace:
<IRQ> [<ffffffff800bdf66>] __report_bad_irq+0x30/0x7d [<ffffffff800be1a4>] note_interrupt+0x1f1/0x232 [<ffffffff800bd6a5>] __do_IRQ+0xfa/0x140 [<ffffffff8006d4c1>] do_IRQ+0xe9/0xf7 [<ffffffff8005d615>] ret_from_intr+0x0/0xa <EOI> [<ffffffff801a2220>] acpi_safe_halt+0x25/0x36 [<ffffffff801a2a88>] acpi_processor_idle_simple+0xe6/0x31c
[<ffffffff801a29a2>] acpi_processor_idle_simple+0x0/0x31c
[<ffffffff80048fe2>] cpu_idle+0x95/0xb8 [<ffffffff80078a9a>] start_secondary+0x479/0x488
handlers:
[<ffffffff801fc748>] (usb_hcd_irq+0x0/0x55) Disabling IRQ #169
Thanks for any help.
-ScottEJ
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