Re: Memory corruption during hibernation since 2.6.31

From: Ondrej Zary
Date: Wed Jul 28 2010 - 17:38:26 EST


On Wednesday 28 July 2010 23:34:07 Rafael J. Wysocki wrote:
> On Wednesday, July 28, 2010, Ondrej Zary wrote:
> > Hello,
> > after very long bisection, I finally found what's causing memory
> > corruption during hibernation on my machine sice 2.6.31:
> > https://bugzilla.kernel.org/show_bug.cgi?id=15753
> >
> > It's commit c9e444103b5e7a5a3519f9913f59767f92e33baf (mm: reuse unused
> > swap entry if necessary).
> >
> > I don't know anything about swapping in Linux so I don't have a clue
> > what's wrong with that commit.
>
> Thanks for bisecting!
>
> This looks rather serious. I'd be grateful from any clues from the mm guys
> involved (CCed).
>
> Do you use s2disk or the built-in hibernation code?

I use built-in code (echo disk >/sys/power/state). The machine has 256MB RAM
and 256MB swap partition.

--
Ondrej Zary
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