From: Balbir Singh <balbir@linux.vnet.ibm.com>
To: James Stevens <James.Stevens@jrcs.co.uk>, kvm@vger.kernel.org
Subject: Re: KVM and the OOM-Killer
Date: Fri, 14 May 2010 13:49:54 +0530 [thread overview]
Message-ID: <20100514081954.GF3296@balbir.in.ibm.com> (raw)
In-Reply-To: <20100514073334.GE16563@miggy.org>
* Athanasius <kvm@miggy.org> [2010-05-14 08:33:34]:
> On Thu, May 13, 2010 at 01:20:31PM +0100, James Stevens wrote:
> > We have a KVM host with 48Gb of RAM and run about 20 KVM clients on it.
> > After some time - different time depending on the kernel version - the
> > VM host kernel will start OOM-Killing the VM clients, even when there is
> > lots of free RAM (>10Gb) and free SWAP (>34Gb).
>
> It seems going to a 64 bit kernel is what you want, but I thought it
> worth mentioning the available method to say "try not to OOM-kill *this*
> process":
>
> echo "-16" > /proc/<pid>/oom_adj
>
A lot of this is being changed, but not yet committed. There are
patches out there to deal with the lowmem issue. Meanwhile, do follow
the suggestions on oom_adj and moving to 64 bit.
--
Three Cheers,
Balbir
prev parent reply other threads:[~2010-05-14 8:20 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-13 12:20 KVM and the OOM-Killer James Stevens
2010-05-13 12:39 ` Avi Kivity
2010-05-13 13:39 ` James Stevens
2010-05-13 13:53 ` Avi Kivity
2010-05-13 18:55 ` David S. Ahern
2010-05-13 13:42 ` Johannes Stezenbach
2010-05-14 7:33 ` Athanasius
2010-05-14 8:10 ` James Stevens
2010-05-14 8:21 ` Balbir Singh
2010-05-14 8:43 ` James Stevens
2010-05-14 12:28 ` Balbir Singh
2010-05-14 13:01 ` James Stevens
2010-05-14 8:19 ` Balbir Singh [this message]
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