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Date: Wed, 11 Jun 2008 16:11:47 +1000 From: Nick Piggin <nickpiggin@...oo.com.au> To: Alexey Dobriyan <adobriyan@...il.com> Cc: Andrew Morton <akpm@...ux-foundation.org>, linux-kernel@...r.kernel.org, kernel-testers@...r.kernel.org, linux-mm@...ck.org Subject: Re: 2.6.26-rc5-mm2: OOM with 1G free swap On Wednesday 11 June 2008 16:00, Alexey Dobriyan wrote: > On Mon, Jun 09, 2008 at 10:31:45PM -0700, Andrew Morton wrote: > > - This is a bugfixed version of 2.6.26-rc5-mm1 - mainly to repair a > > vmscan.c bug which would have prevented testing of the other vmscan.c > > bugs^Wchanges. > > OOM condition happened with 1G free swap. Seems like you've got little or no anon pages left, so 1GB free swap is no problem (nothing left to page out). > 4G RAM, 1G swap partition, normally LTP survives during much, much higher > load. I would hope it is not a memory leak (which might point to lockless pagecache). It doesn't look like it because there is still lots of inactive file pages, so that points to the page reclaim changes (which is not to say page reclaim changes couldn't cause a memory leak themselves). Curious: if you kill off all the LTP tests after the OOM condition, what does your /proc/meminfo look like before and after running sync ; echo 3 > /proc/sys/vm/drop_caches -- 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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