linux-kernel - Re: BUG at mm/huge

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Message-ID: <50574432.5040005@suse.cz>
Date:	Mon, 17 Sep 2012 17:39:30 +0200
From:	Jiri Slaby <jslaby@...e.cz>
To:	Michel Lespinasse <walken@...gle.com>
CC:	linux-mm@...ck.org, LKML <linux-kernel@...r.kernel.org>,
	Andrea Arcangeli <aarcange@...hat.com>,
	Jiri Slaby <jirislaby@...il.com>
Subject: Re: BUG at mm/huge_memory.c:1428!

On 09/14/2012 09:28 PM, Jiri Slaby wrote:
> On 09/14/2012 12:46 AM, Michel Lespinasse wrote:
>> On Thu, Sep 13, 2012 at 11:14 AM, Jiri Slaby <jslaby@...e.cz> wrote:
>>> Hi,
>>>
>>> I've just get the following BUG with today's -next. It happens every
>>> time I try to update packages.
>>>
>>> kernel BUG at mm/huge_memory.c:1428!
>>
>> That is very likely my bug.
>>
>> Do you have the message that should be printed right above the bug ?
>> (                printk(KERN_ERR "mapcount %d page_mapcount %d\n",
>>                        mapcount, page_mapcount(page));
>> )
> 
> Unfortunately no. And I cannot reproduce anymore :(...

FWIW: mapcount 0 page_mapcount 1

It happened today. Now I'm going to apply your patch.

> thanks,
-- 
js
suse labs
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