On Tue, Mar 23, 2010 at 08:01:42PM +0900, ?????? wrote:
> 2.6.32.10 domU also failed with same error log..
> Is it exactly domU problem??
>
For PV guests it is _usually_ a domU kernel problem.
> Is there specific kernel configuration related to save/restore??
> any other comments??
>
I tested using 2.6.32.9 in the domU 1 month ago (or so),
and I could save/restore just fine.
I tried both 32bit and 64bit guests, and both single-vcpu and multi-vcpu.
my .config was based on Fedora kernel .config.
Please paste your /etc/xen/<guest> cfgfile?
-- Pasi
> 2010/3/23 Pasi Kärkkäinen <[1]pasik@xxxxxx>
>
> On Tue, Mar 23, 2010 at 05:04:59PM +0900, ?????? wrote:
> > when I command 'xm save [domainU] [filename]', save process does
> not
> > complete with this error message
> >
> > Error: /usr/lib/xen/bin/xc_save 34 2 0 0 0 failed
> > Usage: xm save [-c] <Domain> <CheckpointFile>
> >
> > Save a domain state to restore later.
> > -c, --checkpoint Leave domain running after
> > creating
> > snapshot
> >
> > and /var/log/xen/xend.log produced below error message.
> >
> > [2010-03-23 16:58:07 1023] DEBUG (DevController:643)
> hotplugStatusCallback
> > 1.
> > [2010-03-23 16:58:07 1023] DEBUG (DevController:139) Waiting for
> devices
> > irq.
> > [2010-03-23 16:58:07 1023] DEBUG (DevController:139) Waiting for
> devices
> > vfb.
> > [2010-03-23 16:58:07 1023] DEBUG (DevController:139) Waiting for
> devices
> > pci.
> > [2010-03-23 16:58:07 1023] DEBUG (DevController:139) Waiting for
> devices
> > vtpm.
> > [2010-03-23 16:58:07 1023] INFO (XendDomain:1182) Domain ubuntu1
> (3)
> > unpaused.
> > [2010-03-23 16:58:42 1023] DEBUG (XendCheckpoint:110) [xc_save]:
> > /usr/lib/xen/bin/xc_save 34 3 0 0 0
> > [2010-03-23 16:58:42 1023] INFO (XendCheckpoint:417) xc_save:
> failed to
> > get the suspend evtchn port
> > [2010-03-23 16:58:42 1023] DEBUG (XendCheckpoint:388) suspend
> > [2010-03-23 16:58:42 1023] INFO (XendCheckpoint:417)
> > [2010-03-23 16:58:42 1023] DEBUG (XendCheckpoint:113) In
> saveInputHandler
> > suspend
> > [2010-03-23 16:58:42 1023] DEBUG (XendCheckpoint:115) Suspending 3
> ...
> > [2010-03-23 16:58:42 1023] DEBUG (XendDomainInfo:511)
> > XendDomainInfo.shutdown(suspend)
> > [2010-03-23 16:58:42 1023] DEBUG (XendDomainInfo:1709)
> > XendDomainInfo.handleShutdownWatch
> > [2010-03-23 16:58:42 1023] DEBUG (XendDomainInfo:1709)
> > XendDomainInfo.handleShutdownWatch
> > [2010-03-23 16:58:42 1023] INFO (XendDomainInfo:1903) Domain has
> shutdown:
> > name=migrating-ubuntu1 id=3 reason=suspend.
> > [2010-03-23 16:58:42 1023] INFO (XendCheckpoint:121) Domain 3
> suspended.
> > [2010-03-23 16:58:42 1023] DEBUG (XendCheckpoint:130) Written done
> > [2010-03-23 16:58:42 1023] ERROR (XendCheckpoint:164) Save failed
> on
> > domain ubuntu1 (3) - resuming.
> > Traceback (most recent call last):
> > File
> "/usr/lib/python2.6/dist-packages/xen/xend/XendCheckpoint.py", line
> > 132, in save
> > forkHelper(cmd, fd, saveInputHandler, False)
> > File
> "/usr/lib/python2.6/dist-packages/xen/xend/XendCheckpoint.py", line
> > 405, in forkHelper
> > raise XendError("%s failed" % string.join(cmd))
> > XendError: /usr/lib/xen/bin/xc_save 34 3 0 0 0 failed
> > [2010-03-23 16:58:42 1023] DEBUG (XendDomainInfo:2788)
> > XendDomainInfo.resumeDomain(3)
> > [2010-03-23 16:58:42 1023] DEBUG (XendDomainInfo:2829)
> > XendDomainInfo.resumeDomain: completed
> > [2010-03-23 17:01:10 1023] DEBUG (XendDomainInfo:2732)
> > XendDomainInfo.destroy: domid=3
> > [2010-03-23 17:01:11 1023] DEBUG (XendDomainInfo:2207) Destroying
> device
> > model
> > [2010-03-23 17:01:11 1023] DEBUG (XendDomainInfo:2214) Releasing
> devices
> > [2010-03-23 17:01:11 1023] DEBUG (XendDomainInfo:2227) Removing
> vif/0
> > [2010-03-23 17:01:11 1023] DEBUG (XendDomainInfo:1134)
> > XendDomainInfo.destroyDevice: deviceClass = vif, device = vif/0
> > [2010-03-23 17:01:11 1023] DEBUG (XendDomainInfo:2227) Removing
> console/0
> > [2010-03-23 17:01:11 1023] DEBUG (XendDomainInfo:1134)
> > XendDomainInfo.destroyDevice: deviceClass = console, device =
> console/0
> > [2010-03-23 17:01:11 1023] DEBUG (XendDomainInfo:2227) Removing
> vbd/51713
> > [2010-03-23 17:01:11 1023] DEBUG (XendDomainInfo:1134)
> > XendDomainInfo.destroyDevice: deviceClass = vbd, device = vbd/51713
> > [2010-03-23 17:01:11 1023] DEBUG (XendDomainInfo:2227) Removing
> vbd/51714
> > [2010-03-23 17:01:11 1023] DEBUG (XendDomainInfo:1134)
> > XendDomainInfo.destroyDevice: deviceClass = vbd, device = vbd/51714
> > [2010-03-23 17:01:11 1023] DEBUG (XendDomainInfo:2212) No device
> model
> > [2010-03-23 17:01:11 1023] DEBUG (XendDomainInfo:2214) Releasing
> devices
> >
> > my system configuration ( 32bit machine )
> > xen 3.4.2, dom0( jeremy's pvops kernel 2.6.31.6), domU( vanilla
> kernel
> > 2.6.32 with paravirt enabled), distribution( ubuntu 9.10 )
> > It does not work well
> >
> > what is the problem??
> > I think current system is quite stable, newtork, disk, and so on.
> > Is there anyone who know this or has experience??
> >
>
> You need to update your domU kernel to the latest stable update
> (2.6.32.10),
> and that'll fix the problem. 2.6.32(.0) doesn't yet have the necessary
> save/restore fixes.
>
> -- Pasi
>
> --
> Eunbyung Park
>
> References
>
> Visible links
> 1. mailto:pasik@xxxxxx
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