From: Steve Capper <steve.capper@linaro.org>
To: Stephen Rothwell <sfr@canb.auug.org.au>, Joern Engel <joern@logfs.org>
Cc: linux-next@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: linux-next: Tree for Jul 3
Date: Wed, 3 Jul 2013 12:25:41 +0100 [thread overview]
Message-ID: <20130703112539.GA32584@linaro.org> (raw)
In-Reply-To: <20130703180620.6919bf7d7f13f7ed21046c68@canb.auug.org.au>
On Wed, Jul 03, 2013 at 06:06:20PM +1000, Stephen Rothwell wrote:
> Hi all,
>
> Changes since 20130702:
>
> The powerpc tree lost its build failure.
>
> The device-mapper tree gained a conflict against the md tree.
>
> The net-next tree gained a build failure for which I cherry-picked an
> upcoming fix.
>
> The trivial tree gained conflicts against the btrfs and Linus' trees.
>
> The xen-two tree gained a conflict against the tip tree.
>
> The akpm tree lost some patches that turned up elsewhere.
>
> The cpuinit tree lost a patch that turned up elsewhere.
>
> ----------------------------------------------------------------------------
>
Hi,
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.
Cheers,
--
Steve
next prev parent reply other threads:[~2013-07-03 11:25 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-03 8:06 linux-next: Tree for Jul 3 Stephen Rothwell
2013-07-03 11:25 ` Steve Capper [this message]
2013-07-03 14:48 ` Jörn Engel
2013-07-08 4:39 ` Stephen Rothwell
2014-07-03 5:53 Stephen Rothwell
2015-07-03 4:08 Stephen Rothwell
2017-07-03 9:03 Stephen Rothwell
2018-07-03 5:15 Stephen Rothwell
2019-07-03 11:49 Stephen Rothwell
2020-07-03 7:26 Stephen Rothwell
2023-07-03 2:20 Stephen Rothwell
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