Am 05.04.2013 14:00, schrieb Mel Gorman:
> On Wed, Apr 03, 2013 at 04:11:24PM +0200, Stefan Priebe - Profihost AG wrote:
>> Am 03.04.2013 16:03, schrieb Mel Gorman:
>>>> I've now tested 3.9-rc5 this gaves me a slightly different kernel log:
>>>> [  197.236518] pigz[2908]: segfault at 0 ip           (null) sp
>>>> 00007f347bffed00 error 14
>>>> [  197.237632] traps: pigz[2915] general protection ip:7f3482dbce2d
>>>> sp:7f3473ffec10 error:0 in libz.so.1.2.3.4[7f3482db7000+17000]
>>>> [  197.330615]  in pigz[400000+10000]
>>>>
>>>> With 3.8 it is the same as with 3.8.4 or 3.8.5.
>>>>
>>>
>>> Ok. Are there NUMA machines were you do *not* see this problem?
>> Sadly no.
>>
>> I can really fast reproduce it with this one:
>> 1.) Machine with only 16GB Mem
>> 2.) compressing two 60GB Files in parallel with pigz consuming all cores
>>
> 
> Ok, I'm dealing with this slower than I'd like due to an unfortunate
> abundance of bugs right now. I am putting together a reproduction case but
> I still can't trigger it unfortunately. Can you post your .config in case
> it's my kernel config that is the reason I can't see the problem please?

no problem. Attaches is my kernel config.

Stefan