xm restore fails

xm restore fails

[Matt Ayres]

xen_changeset          : Sun Apr 16 15:45:57 2006 +0100 9629:07408313ce33

/var/log/xend.log:

[2006-04-19 20:42:09 xend] DEBUG (balloon:126) Balloon: free 1348; need 
521; done.
[2006-04-19 20:42:09 xend] DEBUG (XendCheckpoint:148) [xc_restore]: 
/usr/lib/xen/bin/xc_restore 11 20 42 133120 1 2
[2006-04-19 20:42:10 xend] ERROR (XendCheckpoint:227) xc_linux_restore 
start: max_pfn = 20800
[2006-04-19 20:42:10 xend] ERROR (XendCheckpoint:227) Increased domain 
reservation by 82000 KB
[2006-04-19 20:42:10 xend] ERROR (XendCheckpoint:227) Reloading memory 
pages:   0%
[2006-04-19 20:42:19 xend] ERROR (XendCheckpoint:227) Received all pages 
(0 races)
[2006-04-19 20:42:19 xend] ERROR (XendCheckpoint:227) ERROR: Failure 
when submitting mmu updates
[2006-04-19 20:42:19 xend] ERROR (XendCheckpoint:227) Couldn't m2p on 
PAE root pgdir: 22
[2006-04-19 20:42:19 xend] ERROR (XendCheckpoint:227) Restore exit with rc=1
[2006-04-19 20:42:19 xend.XendDomainInfo] DEBUG (XendDomainInfo:1330) 
XendDomainInfo.destroy: domid=42
[2006-04-19 20:42:19 xend.XendDomainInfo] DEBUG (XendDomainInfo:1338) 
XendDomainInfo.destroyDomain(42)
[2006-04-19 20:42:19 xend.XendDomainInfo] ERROR (XendDomainInfo:1344) 
XendDomainInfo.destroy: xc.domain_destroy failed.
Traceback (most recent call last):
   File 
"/root/xen-3.0-testing.hg/dist/install/usr/lib/python/xen/xend/XendDomainInfo.py", 
line 1342, in destroyDomain
error: (3, 'No such process')
[2006-04-19 20:42:19 xend] ERROR (XendDomain:267) Restore failed
Traceback (most recent call last):
   File 
"/root/xen-3.0-testing.hg/dist/install/usr/lib/python/xen/xend/XendDomain.py", 
line 262, in domain_restore_fd
   File 
"/root/xen-3.0-testing.hg/dist/install/usr/lib/python/xen/xend/XendCheckpoint.py", 
line 152, in restore
   File 
"/root/xen-3.0-testing.hg/dist/install/usr/lib/python/xen/xend/XendCheckpoint.py", 
line 218, in forkHelper
XendError: /usr/lib/xen/bin/xc_restore 11 20 42 133120 1 2 failed

Re: xm restore fails

[Steven Hand]

>xen_changeset          : Sun Apr 16 15:45:57 2006 +0100 9629:07408313ce33
>
>[2006-04-19 20:42:19 xend] ERROR (XendCheckpoint:227) ERROR: Failure 
>when submitting mmu updates
>[2006-04-19 20:42:19 xend] ERROR (XendCheckpoint:227) Couldn't m2p on 
>PAE root pgdir: 22

Hmm - I've never seen this before. Can you easily reproduce, or is it 
an occasional thing? In either case, it'd be worth building a debug/verbose
version of xen in which case you should get some more info out....

[Just a quick sanity check: this is a regular, non-HVM domain?]


cheers,

S.