Am 07.06.21 um 19:06 schrieb Thomas Hellström (Intel):
On 6/7/21 6:40 PM, Thomas Hellström (Intel) wrote:
On 6/2/21 12:09 PM, Christian König wrote:
...
@@ -728,14 +728,15 @@ static int ttm_bo_add_move_fence(struct
ttm_buffer_object *bo,
*/
static int ttm_bo_mem_force_space(struct ttm_buffer_object *bo,
const struct ttm_place *place,
- struct ttm_resource *mem,
+ struct ttm_resource **mem,
struct ttm_operation_ctx *ctx)
{
struct ttm_device *bdev = bo->bdev;
- struct ttm_resource_manager *man = ttm_manager_type(bdev,
mem->mem_type);
+ struct ttm_resource_manager *man;
struct ww_acquire_ctx *ticket;
int ret;
+ man = ttm_manager_type(bdev, (*mem)->mem_type);
Isn't (*mem) uninitialized here? Should be place->mem_type? Eviction
is immediately sent to the bushes.
Got at least one additional NULL pointer deref to track down in the
eviction code, but could be a merge error of mine as well.
Actually this last one was probably due to a bad temporary fix of the
above one.
I've found one more warning during my testing now. But that is just a
false positive.
Apart from that I haven't seen any other fallout, but fingers crossed.
Christian.
/Thomas
