Re: PROBLEM: kernel BUG at mm/rmap.c:486 - kernel 2.6.15-r1

[Dave Spring]

Just for closure's sake:
This turned out to be a hardware problem.
Memtest86+ http://www.memtest.org/ found an intermittent and 
pattern-sensitive memory error,
and only appearing at one or two random locations within the 256M module.
Replacing the dodgy RAM module did the trick.
Dave Spring wrote:

> > > running kernels with or without PREEMPT enabled.
> > If you don't actually *need* accelerated 3D (or if you could do
> > without it for a while), switching to the "nv" driver for a few
> > days/weeks would be interresting. If the crashes go away that would
> > point towards the nvidia driver, if they don't go away we'll get a
> > nice untainted crash report.
>
>
> It's not the nv drivers - or at least not just them.
> I'm getting this bug once or twice a day on a mini-ITX (C3 533Mhz 
> processor) based server which doesn't even have X installed.
> For me, it appeared sometime after 2.6.12.
> I'm now running with gentoo 2.6.15-r1 with Hugh's recently posted patch,
> and waiting 8-|
>
> Dave Spring


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