[mythtv-users] Occasional hard freezes

[Ryan Steffes]

On 10/28/05, Julian Edwards <myth at julian-edwards.com> wrote:
>
> Ryan Steffes wrote:
>
> > I thought I had finally gotten this fixed with the kernel option
> > nolapic, but it happened to me again. I am experiencing hard lock ups
> > that seem to be related to high data throughput, but aren't consistent
> > enough for me to track down. When it freezes, only hitting the reset
> > or power button fixes it.
> >
> > I have an MSI K7N2 Delta 2 motherboard with an AMD Barton 2500+ in
> > it. It has a nforce northbridge. I am passing the kernel "acpi=no
> > noapic nolapic". I'm running 2.6.11-6mdk. I have one PVR 150. I have
> > two hard drives, running LVM to make one video share. I'm running
> > ivtv 0.3.9
> >
> > What happens is a hard lock up. It generally happens when I'm
> > exercising the ethernet hard.
>
> This exact same thing was happening to me too with my KT6 Delta.
>
> [snip]
>
> > Can anyone give any advice on where to go from here?
>
> Sure. The problem is almost certainly to do with interrupt sharing. In
> my case it was a problem with the ACPI steering assigning too many
> devices the same IRQ. I ended up fixing it by disabling unnecessary
> onboard hardware (eg I don't need 8 USB controllers or onboard sound),
> using acpi=off (is that different to your acpi=no ?) and re-positioning
>
>

According to proc/interrupts, there shouldn't be a sharing problem. However,
I'm unsure if there is a difference between acpi=no and acpi=off. I'll try
"off" and see if I can pound away on the NIC and the hard drive and see what
happens.
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