Re: [Xen-users] Memory problems persist... Cannot allocate memory

[James Pifer <jep@xxxxxxxxxxxxxxxx>]

> Looks like you don't have dom0 ballooning enabled, so then dom0 should
> always have the dedicated 2048 MB of memory.
> 
> What was the error you got? check dom0 "dmesg", "xm dmesg" and "xm log"
> when creating 15/16+ guests..
> 
> -- Pasi

Here's what I get in the log when I try to start a domain right now:
[2009-12-31 11:42:19 5611] DEBUG (XendDomainInfo:2757) XendDomainInfo.destroy: 
domid=40
[2009-12-31 11:42:19 5611] DEBUG (XendDomainInfo:2227) Destroying device model
[2009-12-31 11:42:19 5611] DEBUG (XendDomainInfo:2234) Releasing devices
[2009-12-31 11:42:19 5611] DEBUG (XendDomainInfo:2247) Removing vif/0
[2009-12-31 11:42:19 5611] DEBUG (XendDomainInfo:1137) 
XendDomainInfo.destroyDevice: deviceClass = vif, device = vif/0
[2009-12-31 11:42:19 5611] DEBUG (XendDomainInfo:2247) Removing vkbd/0
[2009-12-31 11:42:19 5611] DEBUG (XendDomainInfo:1137) 
XendDomainInfo.destroyDevice: deviceClass = vkbd, device = vkbd/0
[2009-12-31 11:42:19 5611] DEBUG (XendDomainInfo:2247) Removing console/0
[2009-12-31 11:42:19 5611] DEBUG (XendDomainInfo:1137) 
XendDomainInfo.destroyDevice: deviceClass = console, device = console/0
[2009-12-31 11:42:22 5611] DEBUG (XendDomainInfo:2247) Removing vbd/768
[2009-12-31 11:42:22 5611] DEBUG (XendDomainInfo:1137) 
XendDomainInfo.destroyDevice: deviceClass = vbd, device = vbd/768
[2009-12-31 11:42:22 5611] DEBUG (XendDomainInfo:2247) Removing vbd/832
[2009-12-31 11:42:22 5611] DEBUG (XendDomainInfo:1137) 
XendDomainInfo.destroyDevice: deviceClass = vbd, device = vbd/832
[2009-12-31 11:42:23 5611] DEBUG (XendDomainInfo:2247) Removing vfb/0
[2009-12-31 11:42:23 5611] DEBUG (XendDomainInfo:1137) 
XendDomainInfo.destroyDevice: deviceClass = vfb, device = vfb/0
[2009-12-31 11:42:23 5611] ERROR (SrvBase:88) Request start failed.
Traceback (most recent call last):
  File "/usr/lib64/python2.6/site-packages/xen/web/SrvBase.py", line 85, in 
perform
    return op_method(op, req)
  File "/usr/lib64/python2.6/site-packages/xen/xend/server/SrvDomain.py", line 
77, in op_start
    return self.xd.domain_start(self.dom.getName(), paused)
  File "/usr/lib64/python2.6/site-packages/xen/xend/XendDomain.py", line 1040, 
in domain_start
    dominfo.start(is_managed = True)
  File "/usr/lib64/python2.6/site-packages/xen/xend/XendDomainInfo.py", line 
459, in start
    XendTask.log_progress(31, 60, self._initDomain)
  File "/usr/lib64/python2.6/site-packages/xen/xend/XendTask.py", line 209, in 
log_progress
    retval = func(*args, **kwds)
  File "/usr/lib64/python2.6/site-packages/xen/xend/XendDomainInfo.py", line 
2594, in _initDomain
    self._createDevices()
  File "/usr/lib64/python2.6/site-packages/xen/xend/XendDomainInfo.py", line 
2218, in _createDevices
    self.image.createDeviceModel()
  File "/usr/lib64/python2.6/site-packages/xen/xend/image.py", line 419, in 
createDeviceModel
    pid = os.fork()
OSError: [Errno 12] Cannot allocate memory

Thanks,
James


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