Re: [drm/ttm] Memory corruption problem when ttm_tt_init() fails.

On 2020/07/14 18:13, Gu Jinxiang wrote:

I've encountered [BUG: unable to handle kernel NULL pointer dereference at] which has call stack like your pattern2. And before this happended, I got a lot of memory allocation failure warnings. And my kernel is 3.10.0-327.62.1.el7.x86_64.

Since, you mentioned it may be a bug of drm/tmm. So, I checked drm/ttm for possible patch to fix this problem, but found nothing. Could you please tell me is there any progress of this problem that you detected.

I'm not aware of any progress on https://patchwork.kernel.org/patch/5681611/ .