linux-kernel - Re: [PATCH 0/2] kernel BUG at mm/huge

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Wed, 12 Dec 2012 13:36:36 +0800
From:	Bob Liu <lliubbo@...il.com>
To:	Jiri Slaby <jslaby@...e.cz>
Cc:	"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
	linux-mm@...ck.org, LKML <linux-kernel@...r.kernel.org>,
	David Rientjes <rientjes@...gle.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Andrea Arcangeli <aarcange@...hat.com>
Subject: Re: [PATCH 0/2] kernel BUG at mm/huge_memory.c:212!

On Mon, Dec 3, 2012 at 9:02 PM, Jiri Slaby <jslaby@...e.cz> wrote:
> On 11/30/2012 04:03 PM, Kirill A. Shutemov wrote:
>> From: "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
>>
>> Hi Jiri,
>>
>> Sorry for late answer. It took time to reproduce and debug the issue.
>>
>> Could you test two patches below by thread. I expect it to fix both
>> issues: put_huge_zero_page() and Bad rss-counter state.
>
> Hi, yes, since applying the patches on the last Thu, it didn't recur.
>
>> Kirill A. Shutemov (2):
>>   thp: fix anononymous page accounting in fallback path for COW of HZP
>>   thp: avoid race on multiple parallel page faults to the same page
>>
>>  mm/huge_memory.c | 30 +++++++++++++++++++++++++-----
>>  1 file changed, 25 insertions(+), 5 deletions(-)
>

I still saw this bug on 3.7.0-rc8, but it's hard to reproduce it.
It appears only once.

-- 
Regards,
--Bob
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/