linux-kernel - Re: kernel BUG at mm/huge

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Message-ID: <CAJd=RBB-Q21KDiNqWV6+2-e8+t=Udirsrv50A+_KAPg2mrywOg@mail.gmail.com>
Date:	Sat, 29 Dec 2012 15:22:14 +0800
From:	Hillf Danton <dhillf@...il.com>
To:	Alex Xu <alex_y_xu@...oo.ca>
Cc:	Zhouping Liu <zliu@...hat.com>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...hat.com>,
	Johannes Weiner <jweiner@...hat.com>, mgorman@...e.de,
	hughd@...gle.com, Andrea Arcangeli <aarcange@...hat.com>
Subject: Re: kernel BUG at mm/huge_memory.c:1798!

On Fri, Dec 28, 2012 at 12:08 AM, Alex Xu <alex_y_xu@...oo.ca> wrote:
> On 25/12/12 07:05 AM, Hillf Danton wrote:
>> On Tue, Dec 25, 2012 at 12:38 PM, Zhouping Liu <zliu@...hat.com> wrote:
>>> Hello all,
>>>
>>> I found the below kernel bug using latest mainline(637704cbc95),
>>> my hardware has 2 numa nodes, and it's easy to reproduce the issue
>>> using LTP test case: "# ./mmap10 -a -s -c 200":
>>
>> Can you test with 5a505085f0 and 4fc3f1d66b1 reverted?
>>
>> Hillf
>>
>
> (for people from mailing lists, please cc me when replying)
>
> Same thing?

Yes and thank you very much for reporting it.

Hillf
>
> mapcount 0 page_mapcount 1
> ------------[ cut here ]------------
> kernel BUG at mm/huge_memory.c:1798!
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