Re: [2.6.12rc4] PROBLEM: "drive appears confused" and "irq 18: nobody cared!"

From: Alexander Fieroch
Date: Fri Jun 17 2005 - 12:08:44 EST

Alan Cox wrote:
>>Jun 17 12:07:49 orclex kernel: hdb: cdrom_pc_intr: The drive appears confused (ireason = 0x01)
>>Jun 17 12:07:49 orclex kernel: irq 18: nobody cared (try booting with the "irqpoll" option.
> Something failed to clear IRQ 18, that typically means there are IRQ
> routing problems rather than IDE ones and would explain your traces.
> Try booting with acpi=off and see what trace you get then.

acpi=off makes linux hang and not continuing booting. Hm, syslog does
not contain the trace until that crash but the last lines before the
hanging are:

ehci_hcd 0000:00:1d.7: USB 2.0 initialized, EHCI 1.00, driver 10 Dec 2004
hub 1-0:1.0: USB hub found

I've tried booting the kernel with parameter irqpoll as you have
suggested but it leads to a kernel panic.
The last line was:

kernel panic - not syncing: Aiee, killing interrupt handler!

It's not saved in syslog too, so is there any way to get the trace to a

There is something other I've tested - perhaps it's usefull for you.
I've turned off the power options in my ami bios and linux hangs for a
long time while booting.
I got messages like:

ide-cd: cmd 0x5a timed out
hdb: lost interrupt
hdb: lost interrupt
hdb: lost interrupt
ide-cd: cmd 0x5a timed out
hdb: lost interrupt
hdb: irq timeout: status=0xd0 { Busy }
hdb: lost interrupt
hdb: lost interrupt

After 30minutes I did a restart and set the bios power options back to:

Repost Video on S3 Resume [yes]
ACPI 2.0 Support [yes]
ACPI APIC support [enabled]

Alexander Fieroch
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