GNU bug report logs - #35669
Mesa is failing an assertion

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Joshua Branson <jbranso <at> dismail.de>
To: bug-guix <at> gnu.org
Subject: Mesa is failing an assertion
Date: Fri, 10 May 2019 10:55:06 -0400

Hello I am getting a weird mesa assertion when I try to start sway.

sway: ../mesa-18.3.5/src/mesa/program/prog_parameter.c:247:
_mesa_add_parameter: Assertion `0 < size && size <=4' failed.
Aborted.

Is anyone else getting this issue?

Thanks,

--
Joshua Branson
Sent from Emacs and Gnus

Message #8 received at 35669 <at> debbugs.gnu.org (full text, mbox):

From: Marius Bakke <mbakke <at> fastmail.com>
To: Joshua Branson <jbranso <at> dismail.de>, 35669 <at> debbugs.gnu.org
Subject: Re: bug#35669: Mesa is failing an assertion
Date: Fri, 10 May 2019 20:01:12 +0200

[Message part 1 (text/plain, inline)]

Joshua Branson <jbranso <at> dismail.de> writes:

> Hello I am getting a weird mesa assertion when I try to start sway.
>
> sway: ../mesa-18.3.5/src/mesa/program/prog_parameter.c:247:
> _mesa_add_parameter: Assertion `0 < size && size <=4' failed.
> Aborted.
>
> Is anyone else getting this issue?

I've seen this too and went as far as bisecting Mesa:
<https://bugs.freedesktop.org/show_bug.cgi?id=110608>.

...after bisecting Guix to e6a668ec7303a71f87e4c9354b1458e555058c63.

(Guix makes this process surprisingly easy btw, someone should write a
blog post about it.)

The fix is to wipe Mesas shader cache:

 $ rm -rf "$HOME/.cache/mesa_shader_cache"

You may also need to do the same for your display manager, if any:

 $ sudo rm -rf "/var/lib/{sddm,gdm}/.cache/mesa_shader_cache"

I don't know why Mesa fails to do that on its own.  I can't find a lot
on the internet about this issue, so I suspect it is a problem specific
to Guix.

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Message #11 received at 35669 <at> debbugs.gnu.org (full text, mbox):

From: Joshua Branson <jbranso <at> dismail.de>
To: 35669 <at> debbugs.gnu.org
Subject: Re: bug#35669: Mesa is failing an assertion
Date: Mon, 13 May 2019 11:29:40 -0400

This did indeed solve my problem.  Thanks!

-- 
Joshua Branson
Sent from Emacs and Gnus

Message #16 received at 35669-done <at> debbugs.gnu.org (full text, mbox):

From: Royce Strange <royball <at> disroot.org>
To: 35669-done <at> debbugs.gnu.org
Subject: Re: bug#35669: Mesa is failing an assertion
Date: Wed, 10 Jun 2020 09:29:00 -0500

Hello.

Joshua Branson reported the fix provided by Marius Bakke solved 
his issue.

Closing.

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