Re: page allocation failure & sk98lin

[Serban Simu <serban@asperasoft.com>]

Thank you, Nick. Just wanted to mention that while I understand that we 
recover from this allocation failure (and also I don't mind the stack 
printouts), about 20% of my incoming network traffic (600-700 Mbps) 
seems to be dropped in the process. Does the memory manager have to 
spend a considerable amount of time to recover?

I will have a look at the -mm fixes, thanks for the idea.

-Serban

Nick Piggin wrote:

> Serban Simu wrote:
> 
>> Hello all,
>>
>> I found a few references to similar problems in the list but no 
>> indications of whether this has been fixed or can be avoided.
>>
>> I'm using 2.6.8.1 and the patch: sk98lin_v7.04_2.6.8_patch. This 
>> happens  when receiving data fast on the GigE card (about 600Mbps) and 
>> writing on disk. It seems to happen after writing 1 GB to disk (1024 
>> MB) but I can't correlate that very reliably.
>>
>> I would appreciate any information pointing me to a fix or explanation.
>>
>> Thank you!
>>
>> -Serban
>>
>> swapper: page allocation failure. order:0, mode:0x20
> 
> 
> 
> The messages should be basically harmless and can't be completely avoided.
> 
> That said, -mm kernels have patches to fix up numerous problems with the 
> page
> allocator which have a good chance of fixing your problems.
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