# Ubuntu 11.10 + kernel 3.0.x unstable under Amazon EC2
**URL:** https://discuss.elastic.co/t/ubuntu-11-10-kernel-3-0-x-unstable-under-amazon-ec2/6222
**Category:** Elasticsearch
**Created:** [December 22, 2011, 4:59pm UTC](https://discuss.elastic.co/t/ubuntu-11-10-kernel-3-0-x-unstable-under-amazon-ec2/6222 "2011-12-22T16:59:20Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@colinsurprenant](https://discuss.elastic.co/u/colinsurprenant)
#### Post date: [December 22, 2011, 4:59pm UTC](https://discuss.elastic.co/t/ubuntu-11-10-kernel-3-0-x-unstable-under-amazon-ec2/6222/1 "2011-12-22T16:59:20Z")
Hi,
Just a quick note to say that I have experienced a lot of kernel
panics on all nodes of a cluster installed with Ubuntu 11.10 + kernel
3.0.x running under Amazon EC2 (large instance).
Kernels 3.0.0-12, 3.0.0-13 and 3.0.0-14 all panic'ed under high
ElasticSearch load. I am using ES 0.18.5 with OpenJDK java version
"1.6.0\_23" Runtime Environment (IcedTea6 1.11pre)
(6b23~pre11-0ubuntu1.11.10)
I "downgraded" to kernel 2.6.38-8 and so far so good.
@colinsurprenant
---
### Author:  [@Kun\_Niu](https://discuss.elastic.co/u/Kun_Niu)
#### Post date: [December 22, 2011, 5:04pm UTC](https://discuss.elastic.co/t/ubuntu-11-10-kernel-3-0-x-unstable-under-amazon-ec2/6222/2 "2011-12-22T17:04:33Z")
Just curious.
Have you tried to use the latest JDK from Sun?
It seems to me that this problem is also kind of related to JVM
implementation.
> -----Original Message-----
> From: [elasticsearch@googlegroups.com](mailto:elasticsearch@googlegroups.com)
> [[mailto:elasticsearch@googlegroups.com](mailto:elasticsearch@googlegroups.com)] On Behalf Of Colin Surprenant
> Sent: 2011年12月23日 0:59
> To: elasticsearch
> Subject: Ubuntu 11.10 + kernel 3.0.x unstable under Amazon EC2
>
> Hi,
>
> Just a quick note to say that I have experienced a lot of kernel panics on
> all
> nodes of a cluster installed with Ubuntu 11.10 + kernel 3.0.x running
> under
> Amazon EC2 (large instance).
>
> Kernels 3.0.0-12, 3.0.0-13 and 3.0.0-14 all panic'ed under high
> Elasticsearch
> load. I am using ES 0.18.5 with OpenJDK java version "1.6.0\_23" Runtime
> Environment (IcedTea6 1.11pre)
> (6b23~pre11-0ubuntu1.11.10)
>
> I "downgraded" to kernel 2.6.38-8 and so far so good.
>
> @colinsurprenant
---
### Author:  [@kimchy](https://discuss.elastic.co/u/kimchy)
#### Post date: [December 22, 2011, 6:03pm UTC](https://discuss.elastic.co/t/ubuntu-11-10-kernel-3-0-x-unstable-under-amazon-ec2/6222/3 "2011-12-22T18:03:47Z")
It depends if it really relates to JVM, it might relate to the
virtualization layer (which were responsible for the 10.04 freeze of death
problem)... . In any case, thanks for sharing it Colin!
2011/12/22 Kun Niu [haoniukun@gmail.com](mailto:haoniukun@gmail.com)
> Just curious.
> Have you tried to use the latest JDK from Sun?
> It seems to me that this problem is also kind of related to JVM
> implementation.
>
> > -----Original Message-----
> > From: [elasticsearch@googlegroups.com](mailto:elasticsearch@googlegroups.com)
> > [[mailto:elasticsearch@googlegroups.com](mailto:elasticsearch@googlegroups.com)] On Behalf Of Colin Surprenant
> > Sent: 2011年12月23日 0:59
> > To: elasticsearch
> > Subject: Ubuntu 11.10 + kernel 3.0.x unstable under Amazon EC2
> >
> > Hi,
> >
> > Just a quick note to say that I have experienced a lot of kernel panics
> > on
> > all
> > nodes of a cluster installed with Ubuntu 11.10 + kernel 3.0.x running
> > under
> > Amazon EC2 (large instance).
> >
> > Kernels 3.0.0-12, 3.0.0-13 and 3.0.0-14 all panic'ed under high
> > Elasticsearch
> > load. I am using ES 0.18.5 with OpenJDK java version "1.6.0\_23" Runtime
> > Environment (IcedTea6 1.11pre)
> > (6b23~pre11-0ubuntu1.11.10)
> >
> > I "downgraded" to kernel 2.6.38-8 and so far so good.
> >
> > @colinsurprenant
---
### Author:  [@colinsurprenant](https://discuss.elastic.co/u/colinsurprenant)
#### Post date: [December 22, 2011, 6:27pm UTC](https://discuss.elastic.co/t/ubuntu-11-10-kernel-3-0-x-unstable-under-amazon-ec2/6222/4 "2011-12-22T18:27:50Z")
No, I haven't tried Sun JDK with 11.10 + kernel 3.0.x but I doubt it
is JVM related. I more looks like a Xen + kernel issue. All panics
occurred in period of "high" load when cluster was recovering from a
node restart.
On Thu, Dec 22, 2011 at 12:04 PM, Kun Niu [haoniukun@gmail.com](mailto:haoniukun@gmail.com) wrote:
> Just curious.
> Have you tried to use the latest JDK from Sun?
> It seems to me that this problem is also kind of related to JVM
> implementation.
>
> > -----Original Message-----
> > From: [elasticsearch@googlegroups.com](mailto:elasticsearch@googlegroups.com)
> > [[mailto:elasticsearch@googlegroups.com](mailto:elasticsearch@googlegroups.com)] On Behalf Of Colin Surprenant
> > Sent: 2011年12月23日 0:59
> > To: elasticsearch
> > Subject: Ubuntu 11.10 + kernel 3.0.x unstable under Amazon EC2
> >
> > Hi,
> >
> > Just a quick note to say that I have experienced a lot of kernel panics on
> > all
> > nodes of a cluster installed with Ubuntu 11.10 + kernel 3.0.x running
> > under
> > Amazon EC2 (large instance).
> >
> > Kernels 3.0.0-12, 3.0.0-13 and 3.0.0-14 all panic'ed under high
> > Elasticsearch
> > load. I am using ES 0.18.5 with OpenJDK java version "1.6.0\_23" Runtime
> > Environment (IcedTea6 1.11pre)
> > (6b23~pre11-0ubuntu1.11.10)
> >
> > I "downgraded" to kernel 2.6.38-8 and so far so good.
> >
> > @colinsurprenant
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 6, 2017, 3:44am UTC](https://discuss.elastic.co/t/ubuntu-11-10-kernel-3-0-x-unstable-under-amazon-ec2/6222/5 "2017-07-06T03:44:32Z")