[libvirt] [sandbox 1/6] Pass debug and verbose values to init

[Cedric Bosdonnat]

On Tue, 2017-12-05 at 16:52 +0000, Daniel P. Berrange wrote:
> On Tue, Dec 05, 2017 at 10:53:17AM +0100, Cédric Bosdonnat wrote:
> > libvirt-sandbox-init-common is expecting -d and -v parameters to
> > set it in debug or verbose mode... but those will never be passed
> > by the launcher program.
> 
> Hmm, libvirt-sandbox-init-{qemu,lxc} both know how to pass -d
> to init-common.  If either of the virt specific init programs
> are in debug mode (as indicated by the word "debug" in kernel
> command line or equiv), then they pass -d to init-common.

Hum, then I should surely revise that commit to remove the debug-related
code. Instead I should change the init-{lxc,qemu} to actually pass
the debug flag to init-common.

> You're right that there's no way to pass -v though.
> 
> Also, it might be useful to run init-common in debug mode
> without the virt specific init being in debug mode, to avoid
> drowning in debug.

Hum, then keeping the debug-related flag I introduced could help,
but then I'll need to rename it to make it more explicit. Or maybe
I should change the debug parameter to take a level value:
 0: all (default)
 1: only the init-common

In which case the user-exposed options should be expanded to use these.

I'll push the other commits, but not this one.

--
Cedric

> > 
> > Writing the core.debug and core.verbose parameters in the sandbox
> > configuration makes those values actually usable from the init.
> > ---
> >  bin/virt-sandbox.c                            |  3 ++
> >  libvirt-sandbox/libvirt-sandbox-config.c      | 75 +++++++++++++++++++++++++++
> >  libvirt-sandbox/libvirt-sandbox-config.h      |  6 +++
> >  libvirt-sandbox/libvirt-sandbox-init-common.c |  3 ++
> >  libvirt-sandbox/libvirt-sandbox.sym           |  4 ++
> >  5 files changed, 91 insertions(+)
> 
> Reviewed-by: Daniel P. Berrange <berrange at redhat.com>
> 
> if the commit message is fixed
> 
> 
> Regards,
> Daniel