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Re: make test-baseline / make check problem
From: |
David Kastrup |
Subject: |
Re: make test-baseline / make check problem |
Date: |
Thu, 19 Oct 2017 15:19:43 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/26.0.50 (gnu/linux) |
Knut Petersen <address@hidden> writes:
> Hi everybody!
>
> I constantly hit the problem that the files
>
> *
> build/out/test-results/input/regression/out-test-baseline/merge-rests-engraver.png
> * build/out/test-results/input/regression/out-test/merge-rests-engraver.png
>
> are different (a dot moves) - even if I test identical versions of lilypond:
LilyPond does not behave entirely deterministically: there are some
operations depending on memory allocation order, and memory layout tends
to be randomized to some degree in current distributions.
I've eliminated some of those dependencies but have not been able to
find and/or eliminate all.
--
David Kastrup