Obscure errors in dmsg, system instability

[Eirik Øverby]

On 23. Sep 2004, at 04:15, Doug White wrote:

> Is something sharing an interrupt with that device?
>
> PCI bus errors are generally Bad News .. either some device or the 
> mobo is inroducing errors.

Well.. Yes, there is some interrupt sharing. Relevant parts of dmsg:

[ltning at carnen] ~$ dmesg | grep "irq 2"
IOAPIC #0 intpin 19 -> irq 2
uhci0: <Intel 82371AB/EB (PIIX4) USB controller> port 0xd400-0xd41f irq 
2 at device 4.2 on pci0
ahc0: <Adaptec aic7890/91 Ultra2 SCSI adapter> port 0xd000-0xd0ff mem 
0xe2000000-0xe2000fff irq 2 at device 6.0 on pci0
amr0: <LSILogic MegaRAID> mem 0xe3000000-0xe300ffff irq 2 at device 9.1 
on pci0

I don't like the fact that the LSI and the Adaptec are sharing IRQs, 
given that the LSI is the main system drive controller (which is why I 
don't use the Adaptec at all - and it cannot be disabled in BIOS I 
think!)...

I should perhaps try to reallocate some of the IRQs, but I don't really 
have a clue how to do that, since I have no VGA in that box.. Ohwell, I 
guess I just have to rip it open ;)

Any other clues?

Thanks,
/Eirik