linux-kernel - Re: [RESEND][PATCH v5 1/3] hugetlbfs: stop setting VM_DONTDUMP in initializing vma(VM

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]

Message-ID: <alpine.DEB.2.02.1304101445520.1526@chino.kir.corp.google.com>
Date:	Wed, 10 Apr 2013 14:46:07 -0700 (PDT)
From:	David Rientjes <rientjes@...gle.com>
To:	Naoya Horiguchi <n-horiguchi@...jp.nec.com>
cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Mel Gorman <mgorman@...e.de>, Hugh Dickins <hughd@...gle.com>,
	Rik van Riel <riel@...hat.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Konstantin Khlebnikov <khlebnikov@...nvz.org>,
	Michal Hocko <mhocko@...e.cz>,
	HATAYAMA Daisuke <d.hatayama@...fujitsu.com>,
	linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [RESEND][PATCH v5 1/3] hugetlbfs: stop setting VM_DONTDUMP in
 initializing vma(VM_HUGETLB)

On Wed, 10 Apr 2013, Naoya Horiguchi wrote:

> Currently we fail to include any data on hugepages into coredump,
> because VM_DONTDUMP is set on hugetlbfs's vma. This behavior was recently
> introduced by commit 314e51b98 "mm: kill vma flag VM_RESERVED and
> mm->reserved_vm counter". This looks to me a serious regression,
> so let's fix it.
> 
> ChangeLog v3:
>  - move 'return 0' into a separate patch
> 
> ChangeLog v2:
>  - add 'return 0' in hugepage memory check
> 
> Signed-off-by: Naoya Horiguchi <n-horiguchi@...jp.nec.com>
> Acked-by: Konstantin Khlebnikov <khlebnikov@...nvz.org>
> Acked-by: Michal Hocko <mhocko@...e.cz>
> Reviewed-by: Rik van Riel <riel@...hat.com>
> Acked-by: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
> Cc: stable@...r.kernel.org

Acked-by: David Rientjes <rientjes@...gle.com>

Stable for 3.7+.
--
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/