Re: [Xen-users] network is unstable

[Nivedita Singhvi <niv@xxxxxxxxxx>]

xen jones wrote:

> Hello All:
>  
> Here comes again after reboot and it lasts about an hour.
> This time, my xen machine is unable to ping anywhere including other subnect 
> 192.168.213 and external server like ping yahoo.com.  Again, after reboot, thie 
> srror will be gone. How is it happended ?
>  
> Here is the xen debug log file. Maybe it will help debugging:
> vif-bridge up vif=vif28.0 domain=fangweb1 mac=aa:00:00:5b:10:a9 bridge=xen-br0
> vif-bridge down vif=vif28.0 domain=DOM28 mac=aa:00:00:5b:10:a9 bridge=xen-br0
Basically the vif-bridge is going down, not yet clear why.
You're losing your interdomain communication mechanism,
at the very least...

> Unhandled error in Deferred:
> Traceback (most recent call last):
>   File "/usr/lib/python/xen/xend/server/controller.py", line 202, in 
> callResponders
>     resp.responseReceived(msg)
>   File "/usr/lib/python/xen/xend/server/controller.py", line 37, in 
> responseReceived
>     self.deferred.callback(msg)
>   File "/usr/lib/python2.2/site-packages/twisted/internet/defer.py", line 252, 
> in callback
>     self._startRunCallbacks(result)
>   File "/usr/lib/python2.2/site-packages/twisted/internet/defer.py", line 313, 
> in _startRunCallbacks
>     self._runCallbacks()
> --- <exception caught here> ---
>   File "/usr/lib/python2.2/site-packages/twisted/internet/defer.py", line 338, 
> in _runCallbacks
>     self.result = callback(self.result, *args, **kw)
>   File "/usr/lib/python/xen/xend/server/blkif.py", line 477, in 
> respond_be_vbd_grow
>     raise XendError("Adding extent to vbd failed: device %s, error %d"
> xen.xend.XendError.XendError: Adding extent to vbd failed: device (vbd (uname 
> phy:/dev/sda8) (dev sda1) (mode w)), error 8


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