Hi, It's a long standing issue that Valgrind finds thousands of issues in Mesa: https://www.phoronix.com/scan.php?page=news_item&px=MTQzNjk
There's a build flag in Mesa to enable Valgrind support, thus preventing those false positives: https://gitlab.freedesktop.org/mesa/mesa/-/blob/mesa-20.1.2/meson_options.txt#L264-270 Building the Debian package with `-Dvalgrind=true` (and adding valgrind as a build dep) should fix this issue. For the reference, AFAICT this flag is not enabled in mesa 20.1.1-1 in Debian Sid. I would strongly encourage Debian maintainers to consider this change, as it's the only way to make Valgrind usable to debug any kind of OpenGL or Vulkan application. I'm one of the developers of Godot Engine myself, and we have countless developers left without option to use Valgrind because they are running Debian or Ubuntu. Other distros changed their packaging to use `-Dvalgrind=true`: - Fedora: https://src.fedoraproject.org/rpms/mesa/c/37749951bc4d289a522ca332b3cc9cada8ace277?branch=master - Arch: https://bugs.archlinux.org/task/62943 - Mageia: https://ml.mageia.org/l/arc/dev/2019-07/msg00003.html (I'm a Mageia packager) openSUSE doesn't seem to enable it yet, but I'll suggest it to them too. Thanks in advance, Rémi Verschelde Godot Engine Project Manager / Mageia packager
