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Re: AW: [Xen-devel] Migration Problem to Localhost

To: DIEDERIT@xxxxxxxxxxxxxxxxxxxxxxxxxxxx
Subject: Re: AW: [Xen-devel] Migration Problem to Localhost
From: Steven Hand <Steven.Hand@xxxxxxxxxxxx>
Date: Thu, 24 Nov 2005 14:38:08 +0000
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> Here is my xend.log:
> I Think the problem is this ([2005-11-24 14:54:36 xend] ERROR
> (XendCheckpoint:218) Had 0 unexplained entries in p2m table) line.

Nope - this is not an error at all in fact, just verbose debug output
from the xc_save process. 

The real error is: 

> [2005-11-24 14:54:36 xend] DEBUG (XendCheckpoint:139) [xc_restore]:
> /usr/lib/xen/bin/xc_restore 15 21 5 58368 1 2
> 
> [2005-11-24 14:54:36 xend] ERROR (XendCheckpoint:218) xc_linux_restore
> start: max_pfn = e400
> 
> [2005-11-24 14:54:36 xend] ERROR (XendCheckpoint:218) Failed allocation for
> dom 5: 58368 pages order 0 addr_bits 0
> 
> [2005-11-24 14:54:36 xend] ERROR (XendCheckpoint:218) Failed to increase
> reservation by 39000 KB
> 
> [2005-11-24 14:54:36 xend] ERROR (XendCheckpoint:218) Restore exit with rc=1

Basically this means that you didn't have enough memory to do the 
migrate (during a migrate of a domain of size xMB, you temporarily 
need to have a spare x+8 MB free.) 

The error handling / error message could certainly usefully be
improved :-) 



cheers,

S.


 

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