[CentOS] virt-manager crashes Host during installation of guest
Bernhard Gschaider
bgschaid_lists at ice-sf.at
Mon Aug 24 16:04:06 UTC 2009
>>>>> On Thu, 20 Aug 2009 01:47:07 +0200
>>>>> "BG" == Bernhard Gschaider <bgschaid_lists at ice-sf.at> wrote:
BG> Thanks to everyone who took the time to answer in this thread.
BG> I'm just writing this message to give this thread some closure
BG> and am not expecting any answers
I found the cause of my problem. I'll answer to my own posting,
because none of the follow-ups lead to the solution, the reason being
that I withheld some vital information for the diagnosis:
The filesystem which the disk-image for the virtual machine resides on
is XFS!
Googling around I found indications that there are indications that
XEN and XFS are not the best of friends, but nobody hinted at
something as drastic as completely freezing the host.
Anyway. When I create the image on an ext3-partition and point the
configuration to it (no other changes) the installation works without
problems.
Bernhard
PS: There were speculations in the replies, that this was my first
Xen-experience. I want to stress that I have already a running
Xen-machine, that's why I was surprised that it didn't work this time
(but I set that one up a year ago, so technically I am starting anew
with Xen and the speculations are right)
>>>>> On Wed, 19 Aug 2009 10:29:33 -0700 (PDT)
>>>>> "IM" == Ian Murray <murrayie at yahoo.co.uk> wrote:
>>> > This (and other replies) lead me to two possible culprits: >
>>> - either the graphical console over X11 is not a good idea
>>> (but I > can't imagine that, it shouldn't shoot the kernel) >
>>> - I always installed as a paravirtualized machine, Could it be
>>> that > the install-kernel on the 5.3-media is not aware of
>>> this and somehow > manages to shot the host (because I noticed
>>> that most recipies on > the > net, including
>>> http://wiki.centos.org/HowTos/Xen/ > InstallingCentOSDomU >
>>> never talk about paravirtualized (so I assume they use a fully
>>> > virtualized guest)
>>> >
>>> > I will try these later today (when people left the office
>>> and no one > will complain about server downtimes)
>>> >
>>> > Bernhard
>>> >
>>> > BTW: Just one fundamental question: as the upstream OS
>>> vendor is > switching his virtualization to KVM anyway, is it
>>> a good idea to > forget Xen and use KVM (in other words: is it
>>> stable enough for > production)?
BG> I tried removing both suspects by
BG> - following the Wiki-Howto to the letter (especially using
BG> the Xen-install-kernels) - instead of going over the network I
BG> worked directly at the machine (although I totally agree that
BG> a VNC-session shouldn't be ble to shoot the machine)
BG> but the problem is still there. When I start the configured
BG> machine that points to an install-kernel with
BG> xm create newGuest -c
BG> I see the kernel boot up until it comes to the message
BG> Write protecting the kernel read-only data
BG> where it hangs for some seconds, then the screen goes blank
BG> and the machine reboots.
BG> I'm starting to suspect that it is somehow hardware-related
BG> (it is a Fujitsu-Siemens Synergy server with a
BG> RAID-controller) and I will investigate in that direction
--
---------------------------------------------------------------------------
DI Bernhard F.W. Gschaider
---------------------------------------------------------------------------
EMail: Bernhard.Gschaider at ice-sf.at
WWW : www.ice-sf.at
Jabber : bgschaid at jabber.org
Tel: +43(3842)98282-42 Fax: +43(3842)98282-02
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