https://bugs.freedesktop.org/show_bug.cgi?id=84627
Bug ID: 84627 Summary: (bisected) 32bit corruption with PIPE_USAGE_STREAM reverted Product: Mesa Version: git Hardware: x86 (IA32) OS: Linux (All) Status: NEW Severity: major Priority: medium Component: Drivers/Gallium/radeonsi Assignee: dri-devel@lists.freedesktop.org Reporter: smoki00790@gmail.com
As Michel asks me here https://bugs.freedesktop.org/show_bug.cgi?id=82050#add_comment
(In reply to comment #65) Keep in mind that revert broke 32bit complitely, lot of corruption :)
I haven't been able to reproduce that. If you still can, please file a bug for >it, as there's nothing preventing the kernel from using GTT instead of VRAM when >the latter is full.
So i can reproduce it today too on 32bit (64bit is not affected, at least not by corruption) drm-next-3.18 kernel, 3.17.rc7, current mesa git and reverted this:
http://lists.freedesktop.org/archives/mesa-dev/2014-August/066746.html
For the mesa part, i already bisected that it starts at (might be same reason as bug 83436, but let alone that one for now):
http://cgit.freedesktop.org/mesa/mesa/commit/?id=07c65b85eada8dd34019763b6e8...
For the kernel part not bisected yet, but it is somewhere in between 3.16 and 3.17-rc1, so hopefully i will bisect that maybe today :)