From: Andy Lutomirski <luto@amacapital.net>
To: David Rientjes <rientjes@google.com>
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 15:45:51 -0800 [thread overview]
Message-ID: <CALCETrXSzNEdNEZaQqB93rpP9zXcBD4KRX_bjTAnzU6JEXcApg@mail.gmail.com> (raw)
In-Reply-To: <alpine.DEB.2.00.1211131530020.17623@chino.kir.corp.google.com>
On Tue, Nov 13, 2012 at 3:41 PM, David Rientjes <rientjes@google.com> wrote:
> 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.
I'll try later on. The last time I tried to boot 3.7 on this box, it
failed impressively (presumably due to a localmodconfig bug, but I
haven't tracked it down yet).
I'm also not sure how reliably I can reproduce this.
--Andy
--
Andy Lutomirski
AMA Capital Management, LLC
next prev parent reply other threads:[~2012-11-13 23:46 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
2012-11-13 23:45 ` Andy Lutomirski [this message]
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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