Re: [Xen-devel] Supporting large dump files

["Daniel P. Berrange" <berrange@xxxxxxxxxx>]

On Wed, Feb 07, 2007 at 02:20:47PM -0500, Graham, Simon wrote:
> This may have come up before but I can't find it - with the default
> build of Xen, libxc is built in a way that does not support large files
> - this is a problem currently when attempting to dump domains larger
> than 2GB - the dump eventually fails with:
> 
> [root@teller diag]# xm dump-core penn1
> Dumping core of domain: penn1 ...
> Error: Failed to dump core: (27, 'File too large')
> 
> My (admittedly limited) knowledge of this area leads me to the need to
> define _FILE_OFFSET_BITS as 64; is there any issue with turning this on
> for the tools/libxc build? Is there any other #define that should be
> used instead of or in addition to this one?

What version of Xen are you using ? I submitted a patch to have this fixed
many months ago, and I'm pretty sure it was incorporated in Xen 3.0.4

Dan.
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