Jim Fehlig wrote:
Daniel Veillard wrote:
On Wed, May 03, 2006 at 09:43:36AM -0600, Jim Fehlig wrote:
Currently I can get info on hvm domains but unable to create them.
The create request is sent to xend but then blocks reading from xend
in xend_req(). No problem creating the domain using xm. I have
looked at the config coming into xend and it is identical between xm
and virsh/libvirt. Need to poke around xend and see why there is no
response to the virsh/libvirt create request for hvm domains.
Hum, basically to debug this kind of things I spend my time in
/var/log/xend.log especially since it prints what it received at
creation
time, you can at least check the informations coming from libvirt and
from xm look alike.
Unfortunately I won't be able to help you, first because I'm about to
take vacations for 3 weeks :-), second because I don't have one of those
new Intel CPUs, but I am sure others will give an hand if needed.
Well, I have found the problem but not a fix :-). When posting the
create op to xend, the libvirt code currently waits for a response
from xend (xend_req() is called after posting in xend_post()). For
hvm guests, xend does not respond and libvirt blocks indefinitely on
read. If I skip over the call to xend_req() for the create operation,
wait_for_devices() and subsequently unpause() are called and the hvm
guest is launched.
What do you mean by Xend does not respond?
The path is a normal domain_create(). The path within Xend is
server/XMLRPCServer.py but that's a very thin wrapper around a direct
call to XendDomain.py:domain_create(). domain_create() should always
return. If it's not, there's a bug in Xend I think.
Can you give me a very concrete test case for this? The exact
parameters being passed to domain_create() (it should just be an
S-Expression config).
Regards,
Anthony Liguori
This "fix" is just an experimental hack and an appropriate fix would
be to have xend respond to the create op for hvm guests. Being
unfamiliar with the xend code, perhaps someone (Anthony :-)) could
direct me to the appropriate module in xend? Recall that all of this
works for paravirtualized guests so it may not be hard to find even
for someone that has just dabbled in the code.
Regards,
Jim