From: Minchan Kim <minchan.kim@gmail.com>
To: Chris Pearson <pearson.christopher.j@gmail.com>
Cc: linux-mm@kvack.org, Andrea Arcangeli <aarcange@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>,
stable <stable@kernel.org>
Subject: Re: NULL poniter dereference in isolate_lru_pages 2.6.39.1
Date: Tue, 19 Jul 2011 07:48:11 +0900 [thread overview]
Message-ID: <CAEwNFnDwjWDF7Z4AUZg9rAHN6=n9nZ5tZe5U8USn7TpVCNsM6A@mail.gmail.com> (raw)
In-Reply-To: <alpine.DEB.2.00.1107142044110.29346@ubuntu>
Thanks for the test, Chris.
Andrew.
We should push this into -stable.
On Fri, Jul 15, 2011 at 10:48 AM, Chris Pearson
<pearson.christopher.j@gmail.com> wrote:
> That definately fixed it. MTBF was about 20 days on those systems, since that patch we've had 200 server days with no problems.
>
> Thanks!
>
> On Tue, 12 Jul 2011, Minchan Kim wrote:
>
>>Date: Tue, 12 Jul 2011 09:16:09 +0900
>>From: Minchan Kim <minchan.kim@gmail.com>
>>To: Chris Pearson <pearson.christopher.j@gmail.com>
>>Cc: linux-mm@kvack.org, Andrea Arcangeli <aarcange@redhat.com>,
>> Andrew Morton <akpm@linux-foundation.org>, stable <stable@kernel.org>
>>Subject: Re: NULL poniter dereference in isolate_lru_pages 2.6.39.1
>>
>>On Tue, Jul 12, 2011 at 5:52 AM, Chris Pearson
>><pearson.christopher.j@gmail.com> wrote:
>>> We applied the patch to many servers. No problems so far.
>>>
>>> The .config is attached.
>>
>>Thanks. I verified. The point where isolate_lru_pages + 0x225 is
>>page_count exactly. So Andrea patch solves this problem apparently.
>>Couldn't we throw this patch to stable tree?
>>
>>https://patchwork.kernel.org/patch/857442/
>>
>>>
>>> What's the config option to get that debugging info in the future?
>>
>>CONFIG_DEBUG_INFO helps you. :)
>>
>>--
>>Kind regards,
>>Minchan Kim
>>
>
--
Kind regards,
Minchan Kim
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next prev parent reply other threads:[~2011-07-18 22:48 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-07 15:53 Chris Pearson
2011-07-08 5:14 ` Minchan Kim
2011-07-08 15:39 ` Chris Pearson
2011-07-10 23:05 ` Minchan Kim
2011-07-11 20:52 ` Chris Pearson
2011-07-12 0:16 ` Minchan Kim
2011-07-15 1:48 ` Chris Pearson
2011-07-18 22:48 ` Minchan Kim [this message]
2011-07-18 23:18 ` Andrew Morton
2011-07-18 23:32 ` Minchan Kim
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