From: Dave Hansen <dave.hansen@intel.com>
To: Richard Davies <richard@arachsys.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Cc: Johannes Weiner <hannes@cmpxchg.org>
Subject: Re: Unnecessary mass OOM kills on Linux 3.11 virtualization host
Date: Mon, 28 Oct 2013 11:13:27 -0700 [thread overview]
Message-ID: <526EA947.7060608@intel.com> (raw)
In-Reply-To: <20131028082825.GA30504@alpha.arachsys.com>
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.
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WARNING: multiple messages have this Message-ID (diff)
From: Dave Hansen <dave.hansen@intel.com>
To: Richard Davies <richard@arachsys.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Cc: Johannes Weiner <hannes@cmpxchg.org>
Subject: Re: Unnecessary mass OOM kills on Linux 3.11 virtualization host
Date: Mon, 28 Oct 2013 11:13:27 -0700 [thread overview]
Message-ID: <526EA947.7060608@intel.com> (raw)
In-Reply-To: <20131028082825.GA30504@alpha.arachsys.com>
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.
next prev parent reply other threads:[~2013-10-28 18:14 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20131024225718.GA4363@alpha.arachsys.com>
2013-10-24 22:43 ` Unnecessary mass OOM kills on Linux 3.11 virtualization host Richard Davies
2013-10-24 22:43 ` Richard Davies
2013-10-25 10:39 ` Richard Davies
2013-10-25 10:39 ` Richard Davies
2013-10-28 8:28 ` Richard Davies
2013-10-28 8:28 ` Richard Davies
2013-10-28 18:13 ` Dave Hansen [this message]
2013-10-28 18:13 ` Dave Hansen
2013-10-28 18:23 ` Richard Davies
2013-10-28 18:23 ` Richard Davies
2013-11-13 11:18 ` Alin Dobre
2013-11-13 12:09 ` Cyrill Gorcunov
2013-11-13 12:35 ` Alin Dobre
2013-11-13 13:19 ` Cyrill Gorcunov
2013-11-14 9:50 ` Alin Dobre
2013-11-14 10:12 ` David Rientjes
2013-11-14 10:14 ` Alin Dobre
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