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From: Leo Famulari <leo@famulari.name>
To: Ben Woodcroft <b.woodcroft@uq.edu.au>
Cc: guix-devel <guix-devel@gnu.org>, Alex Kost <alezost@gmail.com>
Subject: Re: [PATCH] gnu: Add dlib.
Date: Thu, 18 Aug 2016 16:18:28 -0400	[thread overview]
Message-ID: <20160818201828.GA2393@jasmine> (raw)
In-Reply-To: <d29f34fd-d2b6-26a3-3c3a-1ac35ef59e56@uq.edu.au>

On Wed, Aug 17, 2016 at 01:24:46PM +1000, Ben Woodcroft wrote:
> On 17/08/16 09:45, Leo Famulari wrote:
> > How did it appear non-deterministic to you?
> Just based on guix build --check:
> 
> guix build: error: build failed: derivation
> `/gnu/store/sxybcxw64q1ajzq6dysal75ffgq6238i-dlib-19.1.drv' may not be
> deterministic: output
> `/gnu/store/il57dcii4pzii11zlixjjxxxw699bg5x-dlib-19.1' differs
> 
> I'm actually not sure, why does it say "may not be deterministic"? If it
> builds twice and the second version is different, doesn't that mean it is
> definitely not deterministic by counter-example, unless there has been some
> leakage into the build container?

Ah yes, that checks if the built output is bit-for-bit identical. I
thought that you meant there was some non-determinism in the build
system, like a race condition caused by parallel building. Which could
also be true.

      parent reply	other threads:[~2016-08-18 20:18 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-08-13 17:15 [PATCH] gnu: Add dlib Marius Bakke
2016-08-14 17:25 ` Leo Famulari
2016-08-14 19:52   ` Marius Bakke
2016-08-15  7:43     ` Alex Kost
2016-08-15 11:51       ` Marius Bakke
2016-08-15 20:15         ` Leo Famulari
2016-08-15 20:29           ` Marius Bakke
2016-08-15 22:28             ` Leo Famulari
2016-08-16  0:15               ` Ben Woodcroft
2016-08-16 10:45                 ` Marius Bakke
2016-08-16 20:47                   ` Leo Famulari
2016-08-16 23:31                     ` Ben Woodcroft
2016-08-16 23:45                       ` Leo Famulari
2016-08-17  3:24                         ` Ben Woodcroft
2016-08-17  5:01                           ` Ben Woodcroft
2016-08-17 14:48                           ` Marius Bakke
2016-08-18 20:23                             ` Leo Famulari
2016-08-19 10:52                               ` Marius Bakke
2016-08-21 20:17                                 ` Leo Famulari
2016-08-22  2:30                                   ` Ben Woodcroft
2016-08-22 12:01                                     ` Marius Bakke
2016-08-23 18:33                                       ` Marius Bakke
2016-08-24 10:26                                         ` Marius Bakke
2016-08-24 17:26                                           ` Leo Famulari
2016-08-24 19:08                                             ` Marius Bakke
2016-08-24 22:51                                               ` Ben Woodcroft
2016-08-30 14:43                                               ` Marius Bakke
2016-08-31 19:09                                                 ` Leo Famulari
2016-09-09 12:15                                                   ` Marius Bakke
2016-09-10 12:32                                                     ` Marius Bakke
2016-09-10 18:16                                                       ` Leo Famulari
2016-09-13  5:14                                                         ` Leo Famulari
2016-09-13  5:14                                                       ` Leo Famulari
2016-08-18 20:18                           ` Leo Famulari [this message]

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