> In practice the memory pinning does not seem to be a problem with reiserfs.
> Reiserfs currently always uses a 32MB log which limits the pinned memory
> to 32MB per file system (all pinned buffers need to have log space
And how much 8-32Mb machine testing has been done, instead of big servers ?
> I have seen journal related OOM with ext3 with a 60MB log on a 128MB machine.
> ext3 does full data logging, which means it has much more pages pinned than
> reiserfs under heavy IO.
Ditto on 64Mb boxes.
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