https://bugzilla.kernel.org/show_bug.cgi?id=207383
--- Comment #37 from mnrzk@protonmail.com ---
Notice, no drm tree, tho whatever buggy commit it is obviously affects drm/amdgpu.
Yeah, I kind of noticed that while I was just skimming through the commit history. Perhaps it's possible that the issue has existed for a while but became much more apparent since 5.7?
Whatever it is, keep up the good work; maybe you'll find some sort of clue while bisecting.