Help, I'm trying to get save/restore working, and I keep running into
troubles.
I don't know where to look next.
first I had to get to xen-3.0.2 in order to enable CONFIG_HOTPLUG_CPU
guess x86_64 didn't have it yet
Then I had one success, with one domU, save, restore, etc. [w/debian]
Then I attempted with another domU,
[w/centos and 7G of ram.] and it failed. Since then I haven't been
able to save any domU.
xm save just fails, and leaves the domU in shutdown state.
[root ~]# xm list
Name ID Mem(MiB) VCPUs State Time(s)
Domain-0 0 251 1 r----- 28.2
old_herbie 3 768 2 -b---- 0.7
[root ~]# xm save old_herbie old_herbie.xensav
Error: /usr/lib64/xen/bin/xc_save 10 16 3 0 0 0 failed
[root@herbieII ~]# xm list
Name ID Mem(MiB) VCPUs State Time(s)
Domain-0 0 251 1 r----- 32.0
old_herbie 3 768 1 ---s-- 0.8
Xend.log says this:
[2006-05-08 22:28:41 xend] DEBUG (XendCheckpoint:80) [xc_save]:
/usr/lib64/xen/bin/xc_save 10 16 3 0 0 0
[2006-05-08 22:28:41 xend] DEBUG (XendCheckpoint:200) suspend
[2006-05-08 22:28:41 xend] DEBUG (XendCheckpoint:83) In
saveInputHandler suspend
[2006-05-08 22:28:41 xend] DEBUG (XendCheckpoint:85) Suspending 3 ...
[2006-05-08 22:28:41 xend.XendDomainInfo] DEBUG (XendDomainInfo:877)
XendDomainInfo.handleShutdownWatch
[2006-05-08 22:28:41 xend.XendDomainInfo] DEBUG (XendDomainInfo:877)
XendDomainInfo.handleShutdownWatch
[2006-05-08 22:28:42 xend.XendDomainInfo] INFO (XendDomainInfo:836)
Domain has shutdown: name=migrating-old_herbie id=3 reason=suspend.
[2006-05-08 22:28:42 xend] INFO (XendCheckpoint:88) Domain 3 suspended.
[2006-05-08 22:28:42 xend] DEBUG (XendCheckpoint:91) Written done
[2006-05-08 22:28:42 xend] ERROR (XendCheckpoint:227) Had 0 unexplained
entries in p2m table
[2006-05-08 22:28:57 xend] ERROR (XendCheckpoint:227) Saving memory
pages: iter 1 95%Error when writing to state file (5): 0
[2006-05-08 22:28:57 xend] ERROR (XendCheckpoint:227) Save exit rc=1
[2006-05-08 22:28:57 xend] ERROR (XendCheckpoint:99) Save failed on
domain old_herbie (3).
Traceback (most recent call last):
File "/usr/lib64/python/xen/xend/XendCheckpoint.py", line 93, in save
forkHelper(cmd, fd, saveInputHandler, False)
File "/usr/lib64/python/xen/xend/XendCheckpoint.py", line 218, in
forkHelper
raise XendError("%s failed" % string.join(cmd))
XendError: /usr/lib64/xen/bin/xc_save 10 16 3 0 0 0 failed
[2006-05-08 22:29:23 xend.XendDomainInfo] INFO (XendDomainInfo:836)
Domain has shutdown: name=old_herbie id=3 reason=suspend.
Any help would be much appreciated, I don't know where to go from here.
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