[Bug 82279] [bisected] double free or corruption on context destruction with postprocessing enabled

https://bugs.freedesktop.org/show_bug.cgi?id=82279

--- Comment #4 from Christian König deathsimple@vodafone.de --- (In reply to comment #3)

AFAICT this only happens if postprocessing is enabled via one of the pp_* driconf options or environment variables.

(In reply to comment #0)

...

Bisecting revealed the culprit commit to be

"58d2afa2232060b88f9c444ce7a0d6e63c841bb2: radeonsi: fix leaking the bound state on destruction v2".

Christian, any ideas?

That looks like a bug in the post processing cleanup to me. The context the shaders belong to is destroyed before pp_free is called to destroy the shaders created from that context.

Since the bisected patch explicitly destroys all bound shaders of a context if the context is destroyed we get a double free of the shader.