[buildd-tools-devel] Testing of schroot 1.3 unionfs support

[Roger Leigh]

On Sat, Aug 01, 2009 at 04:12:23PM -0400, Tim Abbott wrote:
> On Sat, 1 Aug 2009, Tim Abbott wrote:
> 
> > However, it immediately segfaults for block-device chroots (in my case, 
> > source chroots for LVM snapshot chroots).  I'll debug a bit later today.
> 
> As a first pass, below is a gdb backtrace from this.

It turns out this was a misplaced assumption which broke when we added
support for chroot facets.  Briefly, the session code expected that
if a chroot said it would support session cloning, clone_session()
would always return a non-null session object.  However,
union-supporting chroot types (block-device, loopback) whose basic
types did not support cloning would only clone if union support was
active.  This is a regression due to the facet change, since the
session facet is always present; previously it always derived from
chroot_session, but only selectivey called its get_session_flags
method.

This is now fixed.  Now, all chroots (except plain) always allow
session cloning, and this is always supported when SESSION_CLONE
is set.

If you can try again, I've fixed this as well as the mount options
quoting in your previous message.


Regards,
Roger

-- 
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