Re: Nforce2 apic timer ack delay

[Jamie Lokier]

Ross Dickson wrote:
> I was just writing you to tell you how well it prevented lockups
> when my system experienced a hard lockup in a slightly different
> form. Firstly mplayer bailed complaining about misuse of cpu ram
> etc, which is an abnormal failure for this system. I then swapped
> desktops back to continue my email and then no mouse or anything
> else just like one of the original hard lockups.

Well, that's a different form of lockup so it might be a different
culprit.  What was the mplayer error?

> A bit early to draw conclusions but could it be that the bios also
> executes a hlt instruction in a System Management Interrupt??
> Perhaps on detecting a hot cpu or something??

Perhaps.  Are you using APM or ACPI?  I think they override
"idle=poll" and call into the BIOS for idling.

-- Jamie
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