From: Andrew Morton <akpm@linux-foundation.org>
To: Josh Boyer <jwboyer@gmail.com>
Cc: Mel Gorman <mgorman@suse.de>,
Zdenek Kabelac <zkabelac@redhat.com>,
Seth Jennings <sjenning@linux.vnet.ibm.com>,
Jiri Slaby <jslaby@suse.cz>,
Valdis.Kletnieks@vt.edu, Jiri Slaby <jirislaby@gmail.com>,
linux-mm@kvack.org, LKML <linux-kernel@vger.kernel.org>,
Rik van Riel <riel@redhat.com>,
Robert Jennings <rcj@linux.vnet.ibm.com>
Subject: Re: [PATCH] Revert "mm: remove __GFP_NO_KSWAPD"
Date: Fri, 16 Nov 2012 11:51:24 -0800 [thread overview]
Message-ID: <20121116115124.c2981abc.akpm@linux-foundation.org> (raw)
In-Reply-To: <CA+5PVA75XDJjo45YQ7+8chJp9OEhZxgPMBUpHmnq1ihYFfpOaw@mail.gmail.com>
On Fri, 16 Nov 2012 14:14:47 -0500
Josh Boyer <jwboyer@gmail.com> wrote:
> > The temptation is to supply a patch that checks if kswapd was woken for
> > THP and if so ignore pgdat->kswapd_max_order but it'll be a hack and not
> > backed up by proper testing. As 3.7 is very close to release and this is
> > not a bug we should release with, a safer path is to revert "mm: remove
> > __GFP_NO_KSWAPD" for now and revisit it with the view to ironing out the
> > balance_pgdat() logic in general.
> >
> > Signed-off-by: Mel Gorman <mgorman@suse.de>
>
> Does anyone know if this is queued to go into 3.7 somewhere? I looked
> a bit and can't find it in a tree. We have a few reports of Fedora
> rawhide users hitting this.
Still thinking about it. We're reverting quite a lot of material
lately.
mm-revert-mm-vmscan-scale-number-of-pages-reclaimed-by-reclaim-compaction-based-on-failures.patch
and revert-mm-fix-up-zone-present-pages.patch are queued for 3.7.
I'll toss this one in there as well, but I can't say I'm feeling
terribly confident. How is Valdis's machine nowadays?
next prev parent reply other threads:[~2012-11-16 19:51 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-11 8:52 kswapd0: wxcessive CPU usage Jiri Slaby
2012-10-11 13:44 ` Valdis.Kletnieks
2012-10-11 15:34 ` Jiri Slaby
2012-10-11 17:56 ` Valdis.Kletnieks
2012-10-11 17:59 ` Jiri Slaby
2012-10-11 18:19 ` Valdis.Kletnieks
2012-10-11 22:08 ` kswapd0: excessive " Jiri Slaby
2012-10-12 12:37 ` Jiri Slaby
2012-10-12 13:57 ` Mel Gorman
2012-10-15 9:54 ` Jiri Slaby
2012-10-15 11:09 ` Mel Gorman
2012-10-29 10:52 ` Thorsten Leemhuis
2012-10-30 19:18 ` Mel Gorman
2012-10-31 11:25 ` Thorsten Leemhuis
2012-10-31 15:04 ` Mel Gorman
2012-11-04 16:36 ` Rik van Riel
2012-11-02 10:44 ` Zdenek Kabelac
2012-11-02 10:53 ` Jiri Slaby
2012-11-02 19:45 ` Jiri Slaby
2012-11-04 11:26 ` Zdenek Kabelac
2012-11-05 14:24 ` [PATCH] Revert "mm: vmscan: scale number of pages reclaimed by reclaim/compaction based on failures" Mel Gorman
2012-11-06 10:15 ` Johannes Hirte
2012-11-09 8:36 ` Mel Gorman
2012-11-14 21:43 ` Johannes Hirte
2012-11-09 9:12 ` Mel Gorman
2012-11-09 4:22 ` kswapd0: excessive CPU usage Seth Jennings
2012-11-09 8:07 ` Zdenek Kabelac
2012-11-09 9:06 ` Mel Gorman
2012-11-11 9:13 ` Zdenek Kabelac
2012-11-12 11:37 ` [PATCH] Revert "mm: remove __GFP_NO_KSWAPD" Mel Gorman
2012-11-16 19:14 ` Josh Boyer
2012-11-16 19:51 ` Andrew Morton [this message]
2012-11-20 1:43 ` Valdis.Kletnieks
2012-11-16 20:06 ` Mel Gorman
2012-11-20 15:38 ` Josh Boyer
2012-11-20 16:13 ` Bruno Wolff III
2012-11-20 17:43 ` Thorsten Leemhuis
2012-11-23 15:20 ` Thorsten Leemhuis
2012-11-27 11:12 ` Mel Gorman
2012-11-21 15:08 ` Mel Gorman
2012-11-20 9:18 ` Glauber Costa
2012-11-20 20:18 ` Andrew Morton
2012-11-21 8:30 ` Glauber Costa
2012-11-12 12:19 ` kswapd0: excessive CPU usage Mel Gorman
2012-11-12 13:13 ` Zdenek Kabelac
2012-11-12 13:31 ` Mel Gorman
2012-11-12 14:50 ` Zdenek Kabelac
2012-11-18 19:00 ` Zdenek Kabelac
2012-11-18 19:07 ` Jiri Slaby
2012-11-09 8:40 ` Mel Gorman
2012-10-11 22:14 ` kswapd0: wxcessive " Andrew Morton
2012-10-11 22:26 ` Jiri Slaby
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