Finding merged /usr bugs through reproducible builds?

[Holger Levsen]

Hi Adrian,

On Sun, Nov 06, 2016 at 09:38:24PM +0200, Adrian Bunk wrote:
> could you change the reproducible builds to find bugs like #843433, 

probably, yes. I've added it to our TODO yesterday…

> ideally with a rebuild of everything that is currently building 
> reproducibly?

if, I'd implemented for all builds on amd64+i386, to always do one build
with /usr-merged, and one without. And then it will take 2-3 weeks until
we have rebuild the whole archive for unstable/amd64. 

see https://tests.reproducible-builds.org/debian/index_performance.html
to get an idea for how long it will take… just note that we've double
the build capacity for amd64 this week (and will soon do the same for
i386).


disclaimer: our main interest in this setup is to find reproducibility
issues. we are not really (that) interested to make this setup expose other
bugs as well, simple because we already "see too much" with it and seeing
even more distracts from what we really want to be looking at.


-- 
cheers,
	Holger
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