On Wed, Nov 3, 2021 at 9:29 PM Karol Herbst kherbst@redhat.com wrote:
On Wed, Nov 3, 2021 at 8:52 PM Sven Joachim svenjoac@gmx.de wrote:
On 2021-11-01 10:17 +0100, Greg Kroah-Hartman wrote:
From: Christian König christian.koenig@amd.com
commit 0db55f9a1bafbe3dac750ea669de9134922389b5 upstream.
We need to cleanup the fences for ghost objects as well.
Signed-off-by: Christian König christian.koenig@amd.com Reported-by: Erhard F. erhard_f@mailbox.org Tested-by: Erhard F. erhard_f@mailbox.org Reviewed-by: Huang Rui ray.huang@amd.com Bug: https://bugzilla.kernel.org/show_bug.cgi?id=214029 Bug: https://bugzilla.kernel.org/show_bug.cgi?id=214447 CC: stable@vger.kernel.org Link: https://patchwork.freedesktop.org/patch/msgid/20211020173211.2247-1-christia... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
drivers/gpu/drm/ttm/ttm_bo_util.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/gpu/drm/ttm/ttm_bo_util.c +++ b/drivers/gpu/drm/ttm/ttm_bo_util.c @@ -322,6 +322,7 @@ static void ttm_transfered_destroy(struc struct ttm_transfer_obj *fbo;
fbo = container_of(bo, struct ttm_transfer_obj, base);
dma_resv_fini(&fbo->base.base._resv); ttm_bo_put(fbo->bo); kfree(fbo);}
Alas, this innocuous looking commit causes one of my systems to lock up as soon as run startx. This happens with the nouveau driver, two other systems with radeon and intel graphics are not affected. Also I only noticed it in 5.10.77. Kernels 5.15 and 5.14.16 are not affected, and I do not use 5.4 anymore.
I am not familiar with nouveau's ttm management and what has changed there between 5.10 and 5.14, but maybe one of their developers can shed a light on this.
Cheers, Sven
could be related to 265ec0dd1a0d18f4114f62c0d4a794bb4e729bc1
maybe not.. but I did remember there being a few tmm related patches which only hurt nouveau :/ I guess one could do a git bisect to figure out what change "fixes" it. On which GPU do you see this problem?