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Re: [libvirt] [PATCH 0/1] Fix pool create when pool already exists



On Wed, Jul 01, 2009 at 10:23:45AM +0100, Daniel P. Berrange wrote:
> On Wed, Jul 01, 2009 at 11:02:08AM +0200, Daniel Veillard wrote:
> > On Tue, Jun 30, 2009 at 04:22:37PM -0400, David Allan wrote:
> > > When storagePoolCreate is called to define a pool that already exists, it mistakenly destroys the existing pool.  This patch fixes the problem.  
> > 
> >   Hum, I tried to assert the level of damage this bug generates and
> > I have been surprized by the following:
> > 
> > virsh # pool-create /tmp/pool.xml
> > Pool testpool created from /tmp/pool.xml
> > 
> > virsh # pool-list
> > Name                 State      Autostart
> > -----------------------------------------
> > testpool             active     no
> > 
> > virsh # pool-create /tmp/pool.xml
> > error: Failed to create pool from /tmp/pool.xml
> > error: internal error storage pool already exists
> > 
> > virsh # pool-list
> > Name                 State      Autostart
> > -----------------------------------------
> > testpool             active     no
> > 
> > virsh #
> > 
> >   I.e. on an unpatched libvirtd, I can hit the error, but the pool still
> > shows up, so I'm wondering what's the effect of the 
> >   virStoragePoolObjRemove(&driver->pools, pool);
> > that we are avoiding here... it should remove the pool from the list,
> > but I'm not seeing this, so I'm a bit puzzled...
> 
> What version of libvirt are you running ?  This bug was fairly 
> recently introduced - it doesn't hit F11 libvirt, but does hit
> current CVS when I try your steps. (ie 'testpool' disappears)

  Hum, I tried an updated RHEL build, that could be the reason, it
appplied fine though and the code was looking similar, I must have
missed something ...

Daniel

-- 
Daniel Veillard      | libxml Gnome XML XSLT toolkit  http://xmlsoft.org/
daniel veillard com  | Rpmfind RPM search engine http://rpmfind.net/
http://veillard.com/ | virtualization library  http://libvirt.org/


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