Re: [Xen-devel] Live migrations / saving fails with >32gb of ram?

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

On Mon, Jul 25, 2011 at 01:59:42PM -0700, Nathan March wrote:
> Hi All,
> 
> Having an issue where I can't save or live migrate a VM once it contains
> more than 32gb of ram. The hosting dom0 fails immediately with:
> 
> [2011-07-25 13:49:01 9265] INFO (XendDomainInfo:2078) Domain has
> shutdown: name=migrating-nathanxenuk2 id=1 reason=suspend.
> [2011-07-25 13:49:01 9265] DEBUG (XendCheckpoint:144) Written done
> [2011-07-25 13:49:01 9265] INFO (XendCheckpoint:423) xc: error: Couldn't
> map p2m_frame_list (22 = Invalid argument): Internal error
> [2011-07-25 13:49:01 9265] INFO (XendCheckpoint:423) xc: error: Failed
> to map/save the p2m frame list (22 = Invalid argument): Internal error
> [2011-07-25 13:49:01 9265] ERROR (XendCheckpoint:185) Save failed on
> domain nathanxenuk2 (1) - 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 411, in forkHelper
>     raise XendError("%s failed" % string.join(cmd))
> XendError: /usr/lib/xen/bin/xc_save 26 1 0 0 0 failed
> [2011-07-25 13:49:01 9265] DEBUG (XendDomainInfo:3135)
> XendDomainInfo.resumeDomain(1)
> [2011-07-25 13:49:01 9265] DEBUG (XendDomainInfo:3176)
> XendDomainInfo.resumeDomain: completed
> 
> Googled around but I can't seem to find anything related with that
> error. The same vm and dom0's work fine as soon as I decrease the ram
> below the 32gb mark. Anyone have any insight on what might be going on here?

Does [xl|xm] save and [xl|xm] resume work?

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