[Xen-devel] Internal error during live migration saving

[Nathan March <nathan@xxxxxx>]

Just wondering if this is a known bug?

Trying to migrate the VM off to a diff dom0 results in the below error. 
Other VMs migrated off fine (started at around the same time as this vm) 
and I've tried a few different target servers, all resulting in the same 
thing.
[2011-09-13 13:48:24 3996] DEBUG (XendCheckpoint:124) [xc_save]: 
/usr/lib/xen/bin/xc_save 29 77 0 0 1
[2011-09-13 13:48:24 3996] INFO (XendCheckpoint:423) xc_save: failed to 
get the suspend evtchn port
[2011-09-13 13:48:24 3996] INFO (XendCheckpoint:423)
[2011-09-13 13:49:03 3996] DEBUG (XendCheckpoint:394) suspend
[2011-09-13 13:49:03 3996] DEBUG (XendCheckpoint:127) In 
saveInputHandler suspend
[2011-09-13 13:49:03 3996] DEBUG (XendCheckpoint:129) Suspending 77 ...
[2011-09-13 13:49:03 3996] DEBUG (XendDomainInfo:524) 
XendDomainInfo.shutdown(suspend)
[2011-09-13 13:49:03 3996] DEBUG (XendDomainInfo:1881) 
XendDomainInfo.handleShutdownWatch
[2011-09-13 13:50:06 3996] DEBUG (XendDomainInfo:1881) 
XendDomainInfo.handleShutdownWatch
[2011-09-13 13:50:06 3996] INFO (XendCheckpoint:423) xc: error: Suspend 
request failed: Internal error
[2011-09-13 13:50:06 3996] INFO (XendCheckpoint:423) xc: error: Domain 
appears not to have suspended: Internal error
[2011-09-13 13:50:06 3996] ERROR (XendCheckpoint:185) Save failed on 
domain globish (77) - resuming.
Traceback (most recent call last):
  File "/usr/lib64/python2.6/site-packages/xen/xend/XendCheckpoint.py", 
line 146, in save
    forkHelper(cmd, fd, saveInputHandler, False)
  File "/usr/lib64/python2.6/site-packages/xen/xend/XendCheckpoint.py", 
line 395, in forkHelper
    inputHandler(line, child.tochild)
  File "/usr/lib64/python2.6/site-packages/xen/xend/XendCheckpoint.py", 
line 131, in saveInputHandler
    dominfo.waitForSuspend()
  File "/usr/lib64/python2.6/site-packages/xen/xend/XendDomainInfo.py", 
line 2998, in waitForSuspend
    raise XendError(msg)
XendError: Timeout waiting for domain 77 to suspend
[2011-09-13 13:50:06 3996] DEBUG (XendDomainInfo:3135) 
XendDomainInfo.resumeDomain(77)
xend-debug.log and the target dom0 logs don't show anything of value.

This is xen 4.1.1 on linux 3.0.3

- Nathan

--
Nathan March<nathan@xxxxxx>
Gossamer Threads Inc. http://www.gossamer-threads.com/
Tel: (604) 687-5804 Fax: (604) 687-5806


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