On 01/23/2017 02:10 AM, Fabio Estevam wrote: > On Sun, Jan 22, 2017 at 12:26 PM, Fabio Estevam <festevam@xxxxxxxxx> wrote: >> On Sat, Jan 21, 2017 at 2:40 PM, Fabio Estevam <festevam@xxxxxxxxx> wrote: >>> Hi, >>> >>> Stopping kmscube application on mx6q through CTRL + C sometimes leads >>> to the following kernel warning: >>> >>> ^C[ 3939.785516] ------------[ cut here ]------------ >>> [ 3939.790313] WARNING: CPU: 1 PID: 67 at >>> drivers/gpu/drm/drm_atomic_helper.c:1032 >>> drm_atomic_helper_wait_for_fences+0xe4/0x104 >>> [ 3939.801626] Modules linked in: >>> [ 3939.804762] CPU: 1 PID: 67 Comm: kworker/1:1 Tainted: G W >>> 4.9.4 #1 >> >> Just tested 4.9.5 and the kernel warning is gone. > > Actually 4.9.5 shows the same warning. > > If I change .atomic_commit like in 782ea2a493ba90800 ("drm/imx: Switch > to drm_fb_cma_prepare_fb() helper") from 4.10-rc1 > > - .atomic_commit = imx_drm_atomic_commit, > + .atomic_commit = drm_atomic_helper_commit, > > it fixes the problem. > IMHO this will no longer handle the fences correctly and you'll see rendering artifacts sometimes. -- Best regards, Marek Vasut _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel