Re: 回复: 回复: [RFC PATCH 1/2] drm/amdgpu: Fix memory corruption due to swapout and swapin

Subject: Re: 回复: 回复: [RFC PATCH 1/2] drm/amdgpu: Fix memory corruption due to swapout and swapin
From: "Pan, Xinhui" <Xinhui.Pan@xxxxxxx>
Date: Thu, 20 May 2021 07:30:05 +0000
Accept-language: zh-CN, en-US
Cc: "Deucher, Alexander" <Alexander.Deucher@xxxxxxx>, "dri-devel@xxxxxxxxxxxxxxxxxxxxx" <dri-devel@xxxxxxxxxxxxxxxxxxxxx>, "Koenig, Christian" <Christian.Koenig@xxxxxxx>
In-reply-to: <d8fe3545-2feb-cd71-79be-97287bf96dcb@gmail.com>
Msip_labels: MSIP_Label_64e4cbe8-b4f6-45dc-bcba-6123dfd2d8bf_Enabled=True; MSIP_Label_64e4cbe8-b4f6-45dc-bcba-6123dfd2d8bf_SiteId=3dd8961f-e488-4e60-8e11-a82d994e183d; MSIP_Label_64e4cbe8-b4f6-45dc-bcba-6123dfd2d8bf_SetDate=2021-05-20T07:30:05.0101718Z; MSIP_Label_64e4cbe8-b4f6-45dc-bcba-6123dfd2d8bf_ContentBits=0; MSIP_Label_64e4cbe8-b4f6-45dc-bcba-6123dfd2d8bf_Method=Privileged
References: <20210519022852.16766-1-xinhui.pan@amd.com> <c7f28ef7-c0a1-ff76-2b48-4559a8e0e593@amd.com> <BN9PR12MB5163D9CC209C0B9B02CD8A5B872B9@BN9PR12MB5163.namprd12.prod.outlook.com> <DM4PR12MB5165E11F06A62127A32E9F0B872B9@DM4PR12MB5165.namprd12.prod.outlook.com> <075eaedb-ca07-83fa-7c1f-6b94ae5a4e6e@gmail.com> <DM4PR12MB51652009560A0FE2AA93ECD9872A9@DM4PR12MB5165.namprd12.prod.outlook.com>, <d8fe3545-2feb-cd71-79be-97287bf96dcb@gmail.com>

I just sent out patch below yesterday. swapping unpopulated bo is useless indeed.

[RFC PATCH 2/2] drm/ttm: skip swapout when ttm has no backend page.

References:
- [RFC PATCH 1/2] drm/amdgpu: Fix memory corruption due to swapout and swapin
  - From: xinhui pan
- Re: [RFC PATCH 1/2] drm/amdgpu: Fix memory corruption due to swapout and swapin
  - From: Felix Kuehling
- 回复: [RFC PATCH 1/2] drm/amdgpu: Fix memory corruption due to swapout and swapin
  - From: Pan, Xinhui
- 回复: [RFC PATCH 1/2] drm/amdgpu: Fix memory corruption due to swapout and swapin
  - From: Pan, Xinhui
- Re: 回复: [RFC PATCH 1/2] drm/amdgpu: Fix memory corruption due to swapout and swapin
  - From: Christian König
- 回复: 回复: [RFC PATCH 1/2] drm/amdgpu: Fix memory corruption due to swapout and swapin
  - From: Pan, Xinhui
- Re: 回复: 回复: [RFC PATCH 1/2] drm/amdgpu: Fix memory corruption due to swapout and swapin
  - From: Christian König