linux-kernel - Re: Unnecessary mass OOM kills on Linux 3.11 virtualization host

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: <526EA947.7060608@intel.com>
Date:	Mon, 28 Oct 2013 11:13:27 -0700
From:	Dave Hansen <dave.hansen@...el.com>
To:	Richard Davies <richard@...chsys.com>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
CC:	Johannes Weiner <hannes@...xchg.org>
Subject: Re: Unnecessary mass OOM kills on Linux 3.11 virtualization host

On 10/28/2013 01:28 AM, Richard Davies wrote:
> I further attach some other types of memory manager errors found in the
> kernel logs around the same time. There are several occurrences of each, but
> I have only copied one here for brevity:
> 
> 19:18:27 kernel: BUG: Bad page map in process qemu-system-x86  pte:00000608 pmd:1d57fd067

FWIW, I took a quick look through your OOM report and didn't see any
obvious causes for it.  But, INMHO, you should probably ignore the OOM
issue until you've fixed these "Bad page map" problems.   Those are a
sign of a much deeper problem.
--
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/