I'm having issues with HVM live migration and every xen version I've
tried - 3.0.1, 3.1.x, 3.3.0 and 3.3.1. Migrations will fail
intermittently with messages like this on the receiving hypervisor:
[2009-02-02 11:35:19 12629] DEBUG (XendCheckpoint:264) [xc_restore]:
/usr/lib64/xen/bin/xc_restore 4 4 2 3 1 1 1
[2009-02-02 11:35:19 12629] INFO (XendCheckpoint:403) xc_domain_restore
start: p2m_size = 100000
[2009-02-02 11:35:19 12629] INFO (XendCheckpoint:403) Reloading memory
pages: 0%
[2009-02-02 11:35:23 12629] INFO (XendCheckpoint:403) Received all pages
(0 races)
[2009-02-02 11:35:23 12629] INFO (XendCheckpoint:403) ERROR Internal
error: error setting the HVM context
[2009-02-02 11:35:23 12629] INFO (XendCheckpoint:403) Restore exit with rc=1
[2009-02-02 11:35:23 12629] DEBUG (XendDomainInfo:2402)
XendDomainInfo.destroy: domid=4
[2009-02-02 11:35:23 12629] ERROR (XendDomainInfo:2416)
XendDomainInfo.destroy: domain destruction failed.
Traceback (most recent call last):
File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py",
line 2409, in destroy
xc.domain_pause(self.domid)
Error: (3, 'No such process')
*xend appears to tear down the failed target vm*
[2009-02-02 11:35:23 12629] ERROR (XendDomain:1145) Restore failed
Traceback (most recent call last):
File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomain.py", line
1143, 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 268, in restore
forkHelper(cmd, fd, handler.handler, True)
File "/usr/lib64/python2.4/site-packages/xen/xend/XendCheckpoint.py",
line 391, in forkHelper
raise XendError("%s failed" % string.join(cmd))
XendError: /usr/lib64/xen/bin/xc_restore 4 4 2 3 1 1 1 failed
and on the sending hypervisor:
[2009-02-02 11:57:32 11768] ERROR (XendCheckpoint:157) Save failed on
domain xen20 (13) - r
esuming.
Traceback (most recent call last):
File "/usr/lib64/python2.4/site-packages/xen/xend/XendCheckpoint.py",
line 135, in save
write_exact(fd, buf, "could not write device model state")
File "/usr/lib64/python2.4/site-packages/xen/xend/XendCheckpoint.py",
line 44, in write_e
xact
raise XendError(errmsg)
XendError: could not write device model state
what do "could not write device model state" and "error setting the HVM
context" indicate?
- jonathan
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