From: Vlastimil Babka <vbabka@suse.cz>
To: Hugh Dickins <hughd@google.com>,
Sasha Levin <sasha.levin@oracle.com>,
Andrew Morton <akpm@linux-foundation.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>,
Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
Mel Gorman <mgorman@suse.de>, Yong-Taek Lee <ytk.lee@samsung.com>,
Minchan Kim <minchan@kernel.org>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Marek Szyprowski <m.szyprowski@samsung.com>,
Rik van Riel <riel@redhat.com>,
Michal Nazarewicz <mina86@mina86.com>,
Dave Jones <davej@redhat.com>
Subject: Re: [PATCH 2/2] mm/page_alloc: DEBUG_VM checks for free_list placement of CMA and RESERVE pages
Date: Wed, 14 May 2014 11:01:10 +0200 [thread overview]
Message-ID: <537330D6.7040802@suse.cz> (raw)
In-Reply-To: <alpine.LSU.2.11.1405132216560.4875@eggly.anvils>
On 05/14/2014 07:19 AM, Hugh Dickins wrote:
> On Tue, 13 May 2014, Sasha Levin wrote:
>> On 05/05/2014 11:50 AM, Vlastimil Babka wrote:
>>> So in the end this VM_DEBUG check probably cannot work anymore for MIGRATE_RESERVE, only for CMA. I'm not sure if it's worth keeping it only for CMA, what are the CMA guys' opinions on that?
>>
>> The way I understood it is that this patch is wrong, but it's still
>> alive in -mm. Should it still be there?
>
> I agree that it should be dropped. I did not follow the discussion,
> but mmotm soon gives me BUG at mm/page_alloc.c:1242 under swapping load.
Yes, I have already asked for dropping, and updating message of PATCH
1/2 at http://marc.info/?l=linux-mm&m=139947475413079&w=2
Vlastimil
> Hugh
>
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next prev parent reply other threads:[~2014-05-14 9:01 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-06 17:35 [PATCH v3] mm/page_alloc: fix freeing of MIGRATE_RESERVE migratetype pages Bartlomiej Zolnierkiewicz
2014-03-21 14:16 ` Vlastimil Babka
2014-03-25 13:47 ` Bartlomiej Zolnierkiewicz
2014-04-03 15:36 ` Vlastimil Babka
2014-04-03 15:40 ` [PATCH 1/2] mm/page_alloc: prevent MIGRATE_RESERVE pages from being misplaced Vlastimil Babka
2014-04-03 15:40 ` [PATCH 2/2] mm/page_alloc: DEBUG_VM checks for free_list placement of CMA and RESERVE pages Vlastimil Babka
2014-04-16 1:09 ` Joonsoo Kim
2014-04-30 21:46 ` Sasha Levin
2014-05-02 12:08 ` Vlastimil Babka
2014-05-05 14:36 ` Sasha Levin
2014-05-05 15:50 ` Vlastimil Babka
2014-05-05 16:37 ` Sasha Levin
2014-05-07 1:33 ` Minchan Kim
2014-05-07 14:59 ` Vlastimil Babka
2014-05-08 5:54 ` Joonsoo Kim
2014-05-08 6:19 ` Minchan Kim
2014-05-08 22:34 ` Andrew Morton
2014-05-13 1:40 ` Joonsoo Kim
2014-05-08 8:51 ` Mel Gorman
2014-05-12 8:28 ` Vlastimil Babka
2014-05-13 1:37 ` Joonsoo Kim
2014-05-14 3:47 ` Sasha Levin
2014-05-14 5:19 ` Hugh Dickins
2014-05-14 9:01 ` Vlastimil Babka [this message]
2014-04-16 0:56 ` [PATCH 1/2] mm/page_alloc: prevent MIGRATE_RESERVE pages from being misplaced Joonsoo Kim
2014-04-17 23:29 ` Minchan Kim
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