[lug] Spurious 8259A interrupt: IRQ7, then hang

Andrew Gilmore agilmore at uc.usbr.gov
Wed Dec 4 09:10:12 MST 2002


D. Stimits wrote:
> Andrew Gilmore wrote:
>
[snip]

>> >> This is my first seriously misbehaving system under Linux, and I'm 
>> a bit
>> >> annoyed.
>> >>
>> >> Symptoms:
>> >>
>> >> ssh session over ethernet hangs after a few CRs.
>> >> Console immediately says:
>> >> Spurious 8259A interrupt: IRQ7

[snip]

>>
>> Since the system is at home, the turnaround time on these suggestions is
>> fairly long. Thanks for any ideas you have.
>>
>> I assume this is a hardware problem, but is there any possibility that
>> it is actually a kernel problem?
>
> 
> 
> Of course it could be a kernel problem, especially with respect to a 
> specific hardware driver...just don't bank too much on the "spurious 
> interrupt" having anything significant to do with it.
> 

Well, partial success.

I tried a 8139too card in the machine, and it worked without this hang.
I attempted to upgrade the kernel to the newest rh kernel, but the CDROM 
will not read the CD-RW I burnt with the data on it. :( I installed from 
CD, so I know the drive works. The CD-RW works in another machine. WIERD.

I tried the FA-310 card in the box that the 8139too card came out of, 
and it hung the machine at first, but after booting into the new RH 
kernel, it works seemingly ok.

Here is a related RH bugzilla link:
http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=75481

Hmm, maybe I'm not going crazy, and it really is a kernel driver issue.

Andrew




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