Re: [Xen-devel] [PATCH v5 13/14] xencommons: move module list into a generic place

["Luis R. Rodriguez" <mcgrof@xxxxxxxx>]

On Tue, May 20, 2014 at 07:40:29AM -0600, Jan Beulich wrote:
> >>> On 20.05.14 at 14:31, <mcgrof@xxxxxxxxxxxxxxxx> wrote:
> > From: "Luis R. Rodriguez" <mcgrof@xxxxxxxx>
> > 
> > This will allows us to share the same module list with
> > sysemd, and lets us upkeep it in one place.
> 
> Hmm - do we really want to further play with this module loading,

That seems to be orthogonal as I'm not adding or removing extensions to it but
simply preserving the existing behavior for both old init and systemd, if
anything just documenting the existing behavior. 

In the last series the modules stuff was discussed and it was pointed out a
desire to share and retain only one source for the list of modules, this is why
I addressed this in this series.  A few regressions were mentioned that seemed
to still exist with auto module loading on Linux, this is why this is
preserved.

> which for at least two releases was scheduled to be removed in
> favor of having the tool stack load modules on demand?

If this support gets added to the tool stack then both systemd and old
init can just remove this part, however the modules xen.conf service unit
file might to then be replaced by an ExecStartPre. The *right* solution
at least for Linux, as documented in the README is to really fix auto
module loading. For Linux at least it would help have documented on the
wiki the exact bug numbers for those issues that exist where auto module
loading does not work.

  Luis

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