physical memory limit?

Andreas Tobler andreast-list at fgznet.ch
Tue Oct 7 18:55:57 UTC 2008


Hi Peter,

Peter Grehan wrote:

>> I remember back in 05 we had a similar issue when I tried
>> 'buildworld' on a G4 alu book. Then you suggested to me
>> to reduce hw.physmem to 512MB.
> 
>  Indeed, and I'm certain those problems were fixed in r1.115
> of mmu_oea.c where the secondary PTEG hash was corrected.

Ok, then I trust you :)

>> I'll reduce/replace the memory and see how it behaves.
> 
>  OK, let us know how it goes.

First step passed, I reduced to one 512MB DIMM and a full buildworld 
with parallel qt build passed.
I'll try overnight with the other DIMM to exclude single DIMM failures.
But still, I have some more possibilities then, slot1/2 is defect, DIMM 
1 does not like co'op with DIMM 2, ECC vs. non ECC (one is marked with 
ECC support, the other isn't).
Will take some hours to find out.

Thanks,
Andreas



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