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Re: stateful caches (was Re: OBS Studio memory leak)


From: Giovanni Biscuolo
Subject: Re: stateful caches (was Re: OBS Studio memory leak)
Date: Thu, 15 Jun 2023 14:59:10 +0200

Hi!

Guillaume Le Vaillant <glv@posteo.net> writes:

[...]

> I used gdb on versions of mesa and vlc with debug symbols:
>
> --8<---------------cut here---------------start------------->8---
> guix build --with-debug-info=mesa --with-debug-info=vlc vlc
>
> gdb /gnu/store/...-vlc-3.0.18/bin/.vlc-real
> (gdb) run some-video.mkv
> --8<---------------cut here---------------end--------------->8---
>
> Then I sent a SIGSTOP signal to the vlc process, and in gdb I looked at
> the backtrace of all the threads of vlc.

got it, thanks!

[...]

>> do you think this bug (is it a bug, right?) needs to be reported
>> upstream?
>
> I guess it would be better if the code reading the shader cache was more
> robust when reading possibly incompatible or corrupted data. However
> I have not tried more recent versions of mesa, maybe they are better at
> it...
>
> And it seems that Maxim has already reported the issue upstream,
> see <https://issues.guix.gnu.org/63197>

oh I missed it: I'll make my comments in that issue then, thanks!

> and <https://gitlab.freedesktop.org/mesa/mesa/-/issues/8937>

I see

Happy hacking. Gio'


-- 
Giovanni Biscuolo

Xelera IT Infrastructures

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