[Xen-devel] Re: Trivial patch to fix logging level output by XendCheckpoint.py

[Anthony Liguori <aliguori@xxxxxxxxxx>]

Daniel P. Berrange wrote:
> On Mon, Nov 20, 2006 at 04:34:25PM -0500, Graham, Simon wrote:
> > Signed-off by: Simon Graham <Simon.Graham@xxxxxxxxxxx>
> And even more importantly, once we get the error reporting patches integrated
> into libxc, having the xc_linux_save/restore calls made by XenD directly
> would ensure we get reliable error handling for save/restore operations.
It used to work that way.  xc_linux_save/restore were factored out of 
Xend late in the 3.0 dev process.  I believe the idea was that they 
should be executed with lower privileges (which is why they take file 
descriptors as command line arguments instead of just calling 
xc_interface_open() like you would expect).
I believe it was Christian who was driving this.  Perhaps he has a few 
more details?
Regards,

Anthony Liguori

> So, is there any good reason for xc_save & xc_restore to exist as separate
> processes - it just seems like a huge complication to me, increasing
> fragility of the system & reducing the quality of error reporting we can
> get
>
> Regards,
> Dan.

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