Re: [Xen-devel] [PATCH] Xend: handle died domain in getVCPUInfo()

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Sun, 2013-12-15 at 13:33 -0800, Matt Wilson wrote:
> On Tue, Dec 10, 2013 at 05:04:47PM +0800, Joe Jin wrote:
> > When created new guest on NUMA server, xend tried to get the best node
> > by calculated all vcpus info, if domain already be terminated then
> > getVCPUInfo() will throw below exception and guest start failed:
> > 
> > [2013-09-04 20:01:26 6254] ERROR (XendDomainInfo:496) VM start failed
> > Traceback (most recent call last):
> >   File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py", 
> > line 482, in start
> >     XendTask.log_progress(31, 60, self._initDomain)
> >   File "/usr/lib64/python2.4/site-packages/xen/xend/XendTask.py", line 209, 
> > in log_progress
> >     retval = func(*args, **kwds)
> >   File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py", 
> > line 2918, in _initDomain
> >     node = self._setCPUAffinity()
> >   File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py", 
> > line 2835, in _setCPUAffinity
> >     best_node = find_relaxed_node(candidate_node_list)[0]
> >   File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py", 
> > line 2803, in find_relaxed_node
> >     cpuinfo = dom.getVCPUInfo()
> >   File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py", 
> > line 1600, in getVCPUInfo
> >     raise XendError(str(exn))
> > XendError: (3, 'No such process')
> > 
> > This patch will check return value of xc.vcpu_getinfo() and make sure the
> > error not caused by domain died before throw the exception.
> > 
> > Signed-off-by: Joe Jin <joe.jin@xxxxxxxxxx>
> 
> Acked-by: Matt Wilson <msw@xxxxxxxxxx>

Pushed.

Ian.


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