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SubjectRe: linux-next: Tree for Jul 3
Hi Jörn,

On Wed, 3 Jul 2013 10:48:03 -0400 Jörn Engel <joern@logfs.org> wrote:
>
> On Wed, 3 July 2013 12:25:41 +0100, Steve Capper wrote:
> >
> > Today's linux-next appears to introduce some BUGs when running the libhugetlbfs
> > testsuite (under both ARM64 and x86_64):
> >
> > [ 94.320661] BUG: Bad rss-counter state mm:ffff880119461040 idx:1 val:-512
> > [ 94.330346] BUG: Bad rss-counter state mm:ffff880119460680 idx:1 val:-2560
> > [ 94.341746] BUG: Bad rss-counter state mm:ffff880119460d00 idx:1 val:-512
> > [ 94.347518] BUG: Bad rss-counter state mm:ffff880119460d00 idx:1 val:-512
> > [ 94.415203] BUG: Bad rss-counter state mm:ffff8801194f9040 idx:1 val:-1024
> >
> > I've bisected this to commit:
> > commit 446313e3e4e7274c4d1e449d107fab6c041ec59c
> > hugetlb: properly account rss
> >
> > The bad counter values I get are all negative.
> >
> > To reproduce this, just run through the latest libhugetlbfs test suite, these
> > warnings appear pretty much immediately. (I set aside 200 huge pages first):
> > http://libhugetlbfs.sourceforge.net/
> >
> > Reverting this commit allows the test suite to run without problems.
>
> Thank you, I will have a look. For the interim, dropping this patch
> from -mm seems the best approach.

OK, I have dropped that from the akpm tree in linux-next today.

--
Cheers,
Stephen Rothwell sfr@canb.auug.org.au
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