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xen-users
Re: [Xen-users] Please advise re 'on_crash' parameter.
Ok well given the lack of any further feedback on this issue, I have to ask
is this 'on_crash' thing even officially supported in Xen?
Steve Wray wrote:
Nick Couchman wrote:
On 2009/10/28 at 16:42, Luke S Crawford <lsc@xxxxxxxxx> wrote:
Steve Wray <steve.wray@xxxxxxxxx> writes:
Is there anyone on this list who can advise regarding the
functionality of 'on_crash' in the domU configuration?
unless you are doing development and are way more handy than I am
with a memory dump, you almost certainly want 'on_crash reboot'
Perhaps, but maybe not...I guess it depends on what types of "crashes"
you experience. In my case, a crash usually means "continuous
reboot", so I'd much rather have on_crash set to "destroy" than
"reboot" as I'd rather not have Xen sit there and constantly reboot a
machine that crashes - usually a Windows machine that's done an update
and is BSODing, rebooting, BSODing, etc.
The problem I've been seeing is with a Linux pvm domU which has been set
to on_crash reboot but which on a crash doesn't reboot.
According to the Xen logs, when Xen tries to reboot it, it finds that
the domain already exists so it bails out of the reboot.
I'm puzzled, any insight would be valuable.
I did post entries from the logs in another mail to the list, but got no
responses to that one.
-Nick
for sysadmin level debugging of DomUs, start xenconsoled with
--log=all or so, and it will record the console of the DomU, which
is usually enough
to figure out what happened.
--
Luke S. Crawford
http://prgmr.com/xen/ - Hosting for the technically adept
http://nostarch.com/xen.htm - We don't assume you are stupid.
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