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From Jan-Arve Nygård <>
Subject Re: XenServer 6.5
Date Wed, 08 Apr 2015 15:30:20 GMT

We are running a build based on 4.5.1. Snapshots with memory (from
CloudStack or XenCenter) and a revert works as expected with a CentOS 6.6
install and XenServer 6.5 and the same version of xen-guest-utilities.

I also just tested with a new install of Ubuntu 14.04.2 LTS from running
kernel 3.16.0-30-generic #40~14.04.1-Ubuntu with a new installation of
xe-guest-utilities_6.5.0-1400_amd64.deb installed (from Xens xs-tools.iso)
and the XenServer 6.5 hosts running the VM still crashed when taking
snapshot with memory.

It would be very interesting to know if you also experience this behavior
so let me know when you have had time to test it.


2015-04-08 16:46 GMT+02:00 Vadim Kimlaychuk <>:

> Hi,
>         This is really scary. Can test within couple of days, but I will
> put 4.5.1 version as 4.5 is broken.  Memory snapshots are not available for
> the XenServer as far as I know, but they just failed at CS before.  Host
> did crash definately.
> Vadim.
> -----Original Message-----
> From: Jan-Arve Nygård []
> Sent: Wednesday, April 08, 2015 2:43 PM
> To:
> Subject: XenServer 6.5
> Hi all,
> We recently experienced a host crash on XenServer 6.5 (all available
> patches applied) when running snapshot of the virtual machines disks and
> memory. Snapshots of disks only (not memory) does not cause a XenServer
> crash. This happens both when initiating the snapshots from CloudStack 4.5
> or directly from XenServer/Center.
> We are able to reproduce this with Ubuntu 14.04.2 and xe-guest-utilities
> 6.5.0-1400, XenServer 6.5 with all available patches and FC as primary
> storage. We will continue to test with other versions/combinations.
> Could someone else with XenServer 6.5 please try a full snapshot of VM
> with disks and memory to see if you experience the same? We have the crash
> dumps and will report this but it would be useful with some more feedback.
> Thanks,
> -thinktwo

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