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Message-ID: <20130529091530.GA29426@suse.de> Date: Wed, 29 May 2013 10:15:30 +0100 From: Mel Gorman <mgorman@...e.de> To: Dave Hansen <dave@...1.net> Cc: LKML <linux-kernel@...r.kernel.org>, Linux-MM <linux-mm@...ck.org>, Andrew Morton <akpm@...ux-foundation.org>, Johannes Weiner <hannes@...xchg.org>, Shaohua Li <shli@...nel.org>, Anton Vorontsov <anton.vorontsov@...aro.org>, Minchan Kim <minchan@...nel.org> Subject: Re: mmotm-2013-05-22: Bad page state On Tue, May 28, 2013 at 02:51:21PM -0700, Dave Hansen wrote: > I was rebasing my mapping->radix_tree lock batching patches on top of > Mel's stuff. It looks like something is jumping the gun and freeing a > page before it has been written out. Somebody probably did an extra > put_page() or something. > > I'm running 3.10.0-rc2-mm1-00322-g8d4c612 from > > git://git.cmpxchg.org/linux-mmotm.git > > This is pretty reproducible. I'll go try and test plain 3.10-rc2 next > to make sure it's not coming from Linus's stuff. > Patch 1 from the follow-up series "mm: vmscan: Block kswapd if it is encountering pages under writeback -fix" The rest of that follow-up series needs further work and I'm still working on it but patch 1 is what fixes this particular problem. Changelog says why. -- Mel Gorman SUSE Labs -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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