On Thu, Jun 03, 2021 at 03:15:05PM +0200, Maciej W. Rozycki wrote: > I have lost track about this issue, so please fill me in as to whether > the offending commit causing the regression has been bisected or not. It has. Michael Cree reported the following back on April 5th: And the first bad commit is: 0fe3cf3a53b5c1205ec7d321be1185b075dff205 is the first bad commit commit 0fe3cf3a53b5c1205ec7d321be1185b075dff205 Author: Christian König <christian.koenig@xxxxxxx> Date: Sat Oct 24 13:12:23 2020 +0200 drm/radeon: switch to new allocator v2 It should be able to handle all cases here. v2: fix debugfs as well Signed-off-by: Christian König <christian.koenig@xxxxxxx> Reviewed-by: Dave Airlie <airlied@xxxxxxxxxx> Reviewed-by: Madhav Chauhan <madhav.chauhan@xxxxxxx> Tested-by: Huang Rui <ray.huang@xxxxxxx> Link: https://patchwork.freedesktop.org/patch/397088/?series=83051&rev=1 :040000 040000 4e643ef861b921392bc67be21a42298c91c7ff7a b36453567c3176a3cd50fa0b23886b0fd642560d M drivers --Bob