Re: [Libvir] Error when paravirtualization domain starts with virsh.
On Mon, Mar 05, 2007 at 11:19:03AM +0100, Michel Gauthier wrote:
With the RHEL5 RC distribution on our IA64 platform (4 CPUs), when
we use
virsh to start a paravirtuailzation domain, we've got the following:
virsh # list
Id Name State
----------------------------------
0 Domain-0 running
virsh # create hndom2
Failed to get devices for domain hndom2
error: Failed to create domain from hndom2
virsh # list
Id Name State
----------------------------------
0 Domain-0 running
24 Domain-24 paused
In spite of an error message, a domain named Domain-Id is created instead
of the hndom2 domain.
Yeah, that's a bug in libvirt - we failed to tear down the 'still born'
domain when something goes wrong during creation.
If the <currentMemory> tag is suppressed from the XML
configuration file,
all is OK.
Sounds like a bug in Xen ia64 to me - the <currentMemory> is used to set
the initial boot RAM, while the <memory> tag is used to set the maximum
reservation. If you omit <currentMemory> then both will be set to the same
value. It sounds like Xen ia64 is not able to cope with the memory < maxmem
situation.
memory=200
maxmem=500
This behaviour appears with the libvirt version 0.1.8 released with
the
RHEL5 RC, and also with the libvirt version 0.1.10.
Are you aware of this problem?
No - we don't do much (any) testing on ia64 due to lack of any suitable
hardware for testing, so we pretty much rely on community/vendors to
identify ia64 problems.
If you want some complementary infos (xend log), we can send it to
you.
See if you can reproduce it with a regular Xen config file using config
options like
memory=200
maxmem=500
Which should simlute presece of '<currentMemory>' element. If you can
reproduce it there, its a Xen bug.
Regards,
Dan.
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