Re: What's the NFS OOM problem?

[Neil Brown]

On Thursday August 10, w@xxxxxx wrote:
> 
> > Can someone help me and give me a brief description on OOM issue?
> 
> I don't know about any OOM issue related to NFS. At most it might happen
> on the client (eg: stating firefox from an NFS root) which might not have
> enough memory for new network buffers, but I don't even know if it's
> possible at all.

We've had reports of OOM problems with NFS at SuSE.
The common factors seem to be lots of memory (6G+) and very large
files. 
Tuning down  /proc/sys/vm/dirty_*ratio seems to avoid the problem,
but I'm not very close to understanding what the real problem is.

NeilBrown
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