On Sat, 28 May 2022 at 08:44, Paneer Selvam, Arunpravin <arunpravin.paneersel...@amd.com> wrote: > > [Public] > > Hi, > > After investigating quite some time on this issue, found freeze problem is > not with the amdgpu part of buddy allocator patch as the patch doesn’t throw > any issues when applied separately on top of the stable base of drm-next. > After digging more into this issue, the below patch seems to be the cause of > this problem, > > drm/ttm: rework bulk move handling v5 > https://cgit.freedesktop.org/drm/drm/commit/?id=fee2ede155423b0f7a559050a39750b98fe9db69 > > when this patch applied on top of the stable (working version) of drm-next > without buddy allocator patch, we can see multiple issues listed below, each > thrown randomly at every GravityMark run, 1. general protection fault at > ttm_lru_bulk_move_tail() 2. NULL pointer deference at > ttm_lru_bulk_move_tail() 3. NULL pointer deference at ttm_resource_init(). > > Regards, > Arun.
Thanks for tracking it down, fee2ede155423b0f7a559050a39750b98fe9db69 isn't trivial to revert Hopefully Christian can figure it out
