[Nix-dev] Attention needed for hydra FreeBSD builds

[Vladimír Čunát]

On 09/15/2013 10:44 PM, Gergely Risko wrote:
> According to nixpkgs git log Vladimir fixed this already:

Well, it's rather a work-around -- not using the bogus "expect" package.

> But the queue is full of old builds without this fix.
>
> There are 5069 *-freebsd builds containing the package name python and
> 2431 containing pypy.  Since the commit message is about libffi, it's
> reasonable to think that pypy is affected.
>
> Since one timeout failure is exactly 1 hour, this means that we will
> have to wait 1200 hours (i686 and x86_64 builds in parallel, so not 2400
> hours) at least.  Thats 50 days.
>
> Can someone please fix this?  Or alternatively tell me why I'm full of
> sh*t and why my calculation is broken? :)

The main problem is that Hydra does *not* do negative caching of this 
failure for some reason. As "expect" was a transitive dependency of e.g. 
mesa, it's contained in almost every package using X. There will surely 
be thousands of runs if someone doesn't stop it!


Vlada


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