Re: APIC/LAPIC hanging problems on nForce2 system.

[Zwane Mwaikambo]

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?

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