Re: APIC/LAPIC hanging problems on nForce2 system.

[Martin Drab]

On Wed, 5 Jan 2005, Zwane Mwaikambo wrote:

> On Wed, 5 Jan 2005, Martin Drab wrote:
> 
> > I'm witnessing a total freeze on my system when the APIC and LAPIC are 
> > enabled in kernel 2.6.10-bk7.
> > 
> > The feeze seems to occur whenever there is some heavy interrupt occurance, 
> > usually high network communication load, or high HDD activity. The freeze 
> > does not occur after constant time during the heavy interrupt load, but it 
> > ALLWAYS occurs, and allways after quite a short time. The freeze is total, 
> > I mean nothing reacts, then, even the cursor on the HW text console stops 
> > blinking. Only cold reset helps.
> > 
> > The problem disappears when I turn off APIC and LAPIC (by the "noapic 
> > nolapic" commands at the kernel boot command line). I tried to turn off 
> > only APIC (i.e., only "noapic"), at first it seemd to be working, but it 
> > frozen anyway, only a bit later. I also tried to turn off only the LAPIC 
> > (i.e.,  only "nolapic"), but then my HDD was loosing interrupts, so the 
> > system didn't even boot.
> > 
> > I also tried the native kernel from MDK 10.1 i586, i.e. 2.6.8.1-12mdk and 
> > it works without any problem with both APIC and LAPIC enabled.
> > 
> > Does anybody have a clue what could be wrong? 
> 
> I'm assuming that 2.6.10 is ok?

If I remember correctly it is not working as well.

Martin

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