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* bug#42025: Determinism Problem with Mpv
@ 2020-06-23 17:41 Msavoritias
  2020-06-23 20:27 ` Marius Bakke
  2020-06-23 21:29 ` Ricardo Wurmus
  0 siblings, 2 replies; 3+ messages in thread
From: Msavoritias @ 2020-06-23 17:41 UTC (permalink / raw)
  To: 42025

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Hi,

I was updating Guix today with the option rounds=2 and I hit an error 
with mpv having different outputs everytime it was built.

The message is this:
building /gnu/store/qkmylc2cd950kf4zk8y3ay0hpwcvjpvr-mpv-0.32.0.drv...
\output ‘/gnu/store/q71zaxglbwmw3z4r1a3jmf1mgwrpmv4c-mpv-0.32.0’ of 
‘/gnu/store/qkmylc2cd950kf4zk8y3ay0hpwcvjpvr-mpv-0.32.0.drv’ 
differs from previous round
build of /gnu/store/qkmylc2cd950kf4zk8y3ay0hpwcvjpvr-mpv-0.32.0.drv 
failed
View build log at 
'/var/log/guix/drvs/qk/mylc2cd950kf4zk8y3ay0hpwcvjpvr-mpv-0.32.0.drv.bz2'.
cannot build derivation 
`/gnu/store/3j9pkj5kad042i1zyqzdw2vl1yfsbznk-celluloid-0.19.drv': 1 
dependencies couldn't be built
guix upgrade: error: build of 
`/gnu/store/3j9pkj5kad042i1zyqzdw2vl1yfsbznk-celluloid-0.19.drv' failed

And my system is this:
Generation 9	Jun 23 2020 19:41:06	(current)
  guix aa246ea
    repository URL: <https://git.savannah.gnu.org/git/guix.git>
    branch: master
    commit: aa246eaa6b338fc6509bd5e6b93fa23121b2c95c

Let me know if there is more information I can provide.


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* bug#42025: Determinism Problem with Mpv
  2020-06-23 17:41 bug#42025: Determinism Problem with Mpv Msavoritias
@ 2020-06-23 20:27 ` Marius Bakke
  2020-06-23 21:29 ` Ricardo Wurmus
  1 sibling, 0 replies; 3+ messages in thread
From: Marius Bakke @ 2020-06-23 20:27 UTC (permalink / raw)
  To: Msavoritias, 42025-done

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Msavoritias <marinus.savoritias@disroot.org> writes:

> Hi,
>
> I was updating Guix today with the option rounds=2 and I hit an error 
> with mpv having different outputs everytime it was built.

Fixed in a864d407119980ef5cfd4be079b8ec2b8038102b, thanks!

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^ permalink raw reply	[flat|nested] 3+ messages in thread

* bug#42025: Determinism Problem with Mpv
  2020-06-23 17:41 bug#42025: Determinism Problem with Mpv Msavoritias
  2020-06-23 20:27 ` Marius Bakke
@ 2020-06-23 21:29 ` Ricardo Wurmus
  1 sibling, 0 replies; 3+ messages in thread
From: Ricardo Wurmus @ 2020-06-23 21:29 UTC (permalink / raw)
  To: Msavoritias; +Cc: 42025


Thank you for the report.

> The message is this:
> building /gnu/store/qkmylc2cd950kf4zk8y3ay0hpwcvjpvr-mpv-0.32.0.drv...
> \output ‘/gnu/store/q71zaxglbwmw3z4r1a3jmf1mgwrpmv4c-mpv-0.32.0’ of
> ‘/gnu/store/qkmylc2cd950kf4zk8y3ay0hpwcvjpvr-mpv-0.32.0.drv’ differs
> from previous round

[…]

> Let me know if there is more information I can provide.

Can you please tell us what files differ when you build mpv a second
time with “guix build --check -K --no-grafts mpv” and compare the two
output directories?  Perhaps there are obvious patterns that could give
us a clue as to what causes the differences.

-- 
Ricardo




^ permalink raw reply	[flat|nested] 3+ messages in thread

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2020-06-23 17:41 bug#42025: Determinism Problem with Mpv Msavoritias
2020-06-23 20:27 ` Marius Bakke
2020-06-23 21:29 ` Ricardo Wurmus

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