Re: Possible dcache BUG

[Denis Vlasenko]

> 	FWIW, I've seen no fewer than 4 independent reports that looked
> suspiciously like yours and mine over the past 3 months.  Maybe we all
> have bad hardware, and memtest86 just isn't stressful enough to show it.
> The alternative is that there's some bug that has affected several
> versions of 2.6 (and maybe 2.4) that seems to hit in low memory
> conditions (e.g. as a result of a 4am cron.daily, or a large rsync).
>
> 	If you're curious, search google groups for "+oops +prune_dcache
> group:linux.kernel", sort by date and look through the first 3 or 4
> pages.  You'll see the same story with the same oopses over and over.
> I know the few single bit flips are _probably_ bad hardware, but the more
> similarities I see, the more I wonder.
>
> 	But, since my problems have completely gone away by adding more RAM,
> I haven't been motivated to track it down anymore.

Let's rule out PREEMPT first

> 	Sorry I can't be more helpful.  Good luck.

Maybe turn PREEMPT back on?
-- 
vda
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