From: David Rientjes <rientjes@google.com>
To: Andy Lutomirski <luto@amacapital.net>
Cc: Marc Duponcheel <marc@offline.be>, Mel Gorman <mgorman@suse.de>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [3.6 regression?] THP + migration/compaction livelock (I think)
Date: Tue, 13 Nov 2012 15:41:02 -0800 (PST) [thread overview]
Message-ID: <alpine.DEB.2.00.1211131530020.17623@chino.kir.corp.google.com> (raw)
In-Reply-To: <CALCETrU=7+pk_rMKKuzgW1gafWfv6v7eQtVw3p8JryaTkyVQYQ@mail.gmail.com>
On Tue, 13 Nov 2012, Andy Lutomirski wrote:
> It just happened again.
>
> $ grep -E "compact_|thp_" /proc/vmstat
> compact_blocks_moved 8332448774
> compact_pages_moved 21831286
> compact_pagemigrate_failed 211260
> compact_stall 13484
> compact_fail 6717
> compact_success 6755
> thp_fault_alloc 150665
> thp_fault_fallback 4270
> thp_collapse_alloc 19771
> thp_collapse_alloc_failed 2188
> thp_split 19600
>
Two of the patches from the list provided at
http://marc.info/?l=linux-mm&m=135179005510688 are already in your 3.6.3
kernel:
mm: compaction: abort compaction loop if lock is contended or run too long
mm: compaction: acquire the zone->lock as late as possible
and all have not made it to the 3.6 stable kernel yet, so would it be
possible to try with 3.7-rc5 to see if it fixes the issue? If so, it will
indicate that the entire series is a candidate to backport to 3.6.
next prev parent reply other threads:[~2012-11-13 23:41 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-13 22:13 [3.6 regression?] THP + migration/compaction livelock (I think) Andy Lutomirski
2012-11-13 23:11 ` David Rientjes
2012-11-13 23:25 ` Andy Lutomirski
2012-11-13 23:41 ` David Rientjes [this message]
2012-11-13 23:45 ` Andy Lutomirski
2012-11-13 23:54 ` David Rientjes
2012-11-14 1:22 ` Marc Duponcheel
2012-11-14 1:51 ` David Rientjes
2012-11-14 13:21 ` Marc Duponcheel
2012-11-14 10:01 ` Mel Gorman
2012-11-14 13:29 ` Marc Duponcheel
2012-11-14 21:50 ` David Rientjes
2012-11-15 1:14 ` Marc Duponcheel
2012-11-17 0:18 ` Marc Duponcheel
2012-11-18 22:55 ` David Rientjes
2012-12-05 19:23 ` Andy Lutomirski
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