It seems that somewhere along the line Xen started using an event
channel to trigger a suspend, as opposed to the 'shutdown' xenstore
value. Is there anything else there I need to know about?
Thanks
James
> -----Original Message-----
> From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-devel-
> bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of James Harper
> Sent: Tuesday, 4 August 2009 11:23
> To: xen-devel@xxxxxxxxxxxxxxxxxxx
> Cc: Joshua West
> Subject: [Xen-devel] Error restoring DomU when using GPLPV
>
> A user (Joshua) is reporting that 'xm restore' isn't working when
GPLPV
> is involved. I've checked the logs generated by GPLPV and there are no
> problems on the save side of things that I can see. Is there anything
> extra that the suspend or restore needs to do since 3.4.x?
>
> Joshua has captured the following:
>
> On the dom0 I initiated a "xm save" of the VM. No problems here, but
> when I initiate an "xm restore", I receive the following error:
>
> Error: /usr/lib64/xen/bin/xc_restore 56 103 2 3 1 1 1 failed
>
> And in /var/log/xen/xend.log, I see (pertaining to this event):
>
> [2009-08-02 15:12:44 4839] INFO (image:745) Need to create platform
> device.[domid:103]
> [2009-08-02 15:12:44 4839] DEBUG (XendCheckpoint:261)
> restore:shadow=0x9, _static_max=0x40000000, _static_min=0x0,
> [2009-08-02 15:12:44 4839] DEBUG (balloon:166) Balloon: 31589116 KiB
> free; need 1061888; done.
> [2009-08-02 15:12:44 4839] DEBUG (XendCheckpoint:278) [xc_restore]:
> /usr/lib64/xen/bin/xc_restore 56 103 2 3 1 1 1
> [2009-08-02 15:12:44 4839] INFO (XendCheckpoint:417) xc_domain_restore
> start: p2m_size = 100000
> [2009-08-02 15:12:44 4839] INFO (XendCheckpoint:417) Reloading memory
> pages: 0%
> [2009-08-02 15:12:52 4839] INFO (XendCheckpoint:417) Failed allocation
> for dom 103: 1024 extents of order 0
> [2009-08-02 15:12:52 4839] INFO (XendCheckpoint:417) ERROR Internal
> error: Failed to allocate memory for batch.!
> [2009-08-02 15:12:52 4839] INFO (XendCheckpoint:417)
> [2009-08-02 15:12:52 4839] INFO (XendCheckpoint:417) Restore exit with
> rc=1
> [2009-08-02 15:12:52 4839] DEBUG (XendDomainInfo:2724)
> XendDomainInfo.destroy: domid=103
> [2009-08-02 15:12:52 4839] ERROR (XendDomainInfo:2738)
> XendDomainInfo.destroy: domain destruction failed.
> Traceback (most recent call last):
> File
"/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py",
> line 2731, in destroy
> xc.domain_pause(self.domid)
> Error: (3, 'No such process')
> [2009-08-02 15:12:52 4839] DEBUG (XendDomainInfo:2204) No device model
> [2009-08-02 15:12:52 4839] DEBUG (XendDomainInfo:2206) Releasing
devices
> [2009-08-02 15:12:52 4839] DEBUG (XendDomainInfo:2219) Removing
vbd/768
> [2009-08-02 15:12:52 4839] DEBUG (XendDomainInfo:1134)
> XendDomainInfo.destroyDevice: deviceClass = vbd, device = vbd/768
> [2009-08-02 15:12:52 4839] DEBUG (XendDomainInfo:2219) Removing vfb/0
> [2009-08-02 15:12:52 4839] DEBUG (XendDomainInfo:1134)
> XendDomainInfo.destroyDevice: deviceClass = vfb, device = vfb/0
> [2009-08-02 15:12:52 4839] DEBUG (XendDomainInfo:2219) Removing
> console/0
> [2009-08-02 15:12:52 4839] DEBUG (XendDomainInfo:1134)
> XendDomainInfo.destroyDevice: deviceClass = console, device =
console/0
> [2009-08-02 15:12:52 4839] ERROR (XendDomain:1149) Restore failed
> Traceback (most recent call last):
> File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomain.py",
line
> 1147, in domain_restore_fd
> return XendCheckpoint.restore(self, fd, paused=paused,
> relocating=relocating)
> File
"/usr/lib64/python2.4/site-packages/xen/xend/XendCheckpoint.py",
> line 282, in restore
> forkHelper(cmd, fd, handler.handler, True)
> File
"/usr/lib64/python2.4/site-packages/xen/xend/XendCheckpoint.py",
> line 405, in forkHelper
> raise XendError("%s failed" % string.join(cmd))
> XendError: /usr/lib64/xen/bin/xc_restore 56 103 2 3 1 1 1 failed
>
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