From: Mel Gorman <mgorman@suse.de>
To: Alex Thorlton <athorlton@sgi.com>
Cc: Rik van Riel <riel@redhat.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: BUG: mm, numa: test segfaults, only when NUMA balancing is on
Date: Fri, 22 Nov 2013 23:05:25 +0000 [thread overview]
Message-ID: <20131122230524.GB5285@suse.de> (raw)
In-Reply-To: <20131122212807.GR3062@sgi.com>
On Fri, Nov 22, 2013 at 03:28:07PM -0600, Alex Thorlton wrote:
> > If the warning added by that patch does *not* trigger than can you also
> > test this patch? It removes the barriers which should not be necessary
> > and takes a reference tot he page before waiting on the lock. The
> > previous version did not take the reference because otherwise the
> > WARN_ON could not distinguish between a migration waiter and a surprise
> > gup.
>
> Sorry for the delay; been a bit busy. I tested both of these patches on
> top of this one (separately, of course):
>
> http://www.spinics.net/lists/linux-mm/msg63919.html
>
> I think that's the one you were referring to, if not send me a pointer
> to the correct one and I'll give it another shot. Both patches still
> segfaulted, so it doesn't appear that either of these solved the
> problem.
I see. Does THP have to be enabled or does it segfault even with THP
disabled?
--
Mel Gorman
SUSE Labs
next prev parent reply other threads:[~2013-11-22 23:05 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-16 15:54 BUG: mm, numa: test segfaults, only when NUMA balancing is on Alex Thorlton
2013-10-17 11:30 ` Bob Liu
2013-10-18 0:33 ` Alex Thorlton
2013-11-04 14:58 ` Mel Gorman
2013-11-04 20:03 ` Alex Thorlton
2013-11-06 13:10 ` Mel Gorman
2013-11-07 21:48 ` Alex Thorlton
2013-11-08 11:20 ` Mel Gorman
2013-11-08 14:08 ` Mel Gorman
2013-11-08 22:13 ` Alex Thorlton
2013-11-12 21:29 ` Alex Thorlton
2013-11-15 0:09 ` Mel Gorman
2013-11-15 14:45 ` Mel Gorman
2013-11-22 21:28 ` Alex Thorlton
2013-11-22 23:05 ` Mel Gorman [this message]
2013-11-23 0:09 ` Mel Gorman
2013-11-27 23:58 ` Alex Thorlton
2013-11-07 21:52 ` Alex Thorlton
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