Bug#851640: --debbuildopts not propagated anymore to cowbuilder

[Vincent Bernat]

 ❦ 17 janvier 2017 16:12 +0100, Mattia Rizzolo <mattia at debian.org> :

>> Cannot test right now, but at the end of the build, cowbuilder complain
>> about not being able to unmount /dev/shm because it's busy. I assumed
>> this was because the use of a more recent pbuilder turned into a symlink
>> or the reverse.
>
> umh, though that's still not supposed to happen.  From what I could see
> mount and umount follow symlinks without any problem:
[...]

OK, that was pure speculation. I need to go home to look further.

> Do you have any BINDMOUNT configured for shm?  anything strange?

I have a BINDMOUNT, but not for shm.

> Mind you, we already have a similar bug which I could reproduce
> involving updating a sqeeze chroot to wheezy (#709053), is what you see
> something similar?  Alas I could not understand what is the root cause
> of it (I have an idea it's due to the initscripts update, but I'm not
> even sure), so I don't really know how to fix that particular instance,
> but if you could take the time to see what goes wrong in your case, I'd
> be really greatful! :)

Yes, I can. Keep tuned.
-- 
Watch out for off-by-one errors.
            - The Elements of Programming Style (Kernighan & Plauger)
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