; amd-...@lists.freedesktop.org
抄送: Deucher, Alexander; dan...@ffwll.ch; Koenig, Christian;
dri-devel@lists.freedesktop.org
主题: Re: 回复: 回复: [RFC PATCH 1/2] drm/amdgpu: Fix memory corruption due to
swapout and swapin
> swapout function create one swap storage which is filled with zero. And
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.
人: Kuehling, Felix; amd-...@lists.freedesktop.org
抄送: Deucher, Alexander; Koenig, Christian; dri-devel@lists.freedesktop.org;
dan...@ffwll.ch
主题: 回复: [RFC PATCH 1/2] drm/amdgpu: Fix memory corruption due to swapout and
swapin
yes, we really dont swapout SG BOs.
The problems is that before we validat
, Felix; amd-...@lists.freedesktop.org
抄送: Deucher, Alexander; Koenig, Christian;
dri-devel@lists.freedesktop.org; dan...@ffwll.ch
主题: 回复: [RFC PATCH 1/2] drm/amdgpu: Fix memory corruption due to
swapout and swapin
yes, we really dont swapout SG BOs.
The problems is that before we validate a userptr BO, we create th
König; Pan, Xinhui; amd-...@lists.freedesktop.org
抄送: Deucher, Alexander; dan...@ffwll.ch; Koenig, Christian;
dri-devel@lists.freedesktop.org
主题: Re: 回复: [RFC PATCH 1/2] drm/amdgpu: Fix memory corruption due to swapout
and swapin
Looks like we're creating the userptr BO as ttm_bo_type_device. I
抄送: Deucher, Alexander; dan...@ffwll.ch; Koenig, Christian;
dri-devel@lists.freedesktop.org
主题: Re: 回复: [RFC PATCH 1/2] drm/amdgpu: Fix memory corruption due to swapout
and swapin
I'm scratching my head how that is even possible.
See when a BO is created in the system domain it is just an em
t;>
>>
>> 发件人: Pan, Xinhui
>> 发送时间: 2021年5月19日 12:09
>> 收件人: Kuehling, Felix; amd-...@lists.freedesktop.org
>> 抄送: Deucher, Alexander; Koenig, Christian;
>> dri-devel@lists.freedesktop.org; dan...@ffwll.ch
>> 主题: 回复: [RFC PATCH 1/2] drm
, Felix; amd-...@lists.freedesktop.org
抄送: Deucher, Alexander; Koenig, Christian; dri-devel@lists.freedesktop.org;
dan...@ffwll.ch
主题: 回复: [RFC PATCH 1/2] drm/amdgpu: Fix memory corruption due to swapout and
swapin
yes, we really dont swapout SG BOs.
The problems is that before we validate a userptr BO, we create th
, Felix; amd-...@lists.freedesktop.org
抄送: Deucher, Alexander; Koenig, Christian; dri-devel@lists.freedesktop.org;
dan...@ffwll.ch
主题: 回复: [RFC PATCH 1/2] drm/amdgpu: Fix memory corruption due to swapout and
swapin
yes, we really dont swapout SG BOs.
The problems is that before we validate a us
[AMD Official Use Only]
yes, we really dont swapout SG BOs.
The problems is that before we validate a userptr BO, we create this BO in CPU
domain by default. So this BO has chance to swapout.
we set flag TTM_PAGE_FLAG_SG on userptr BO in popluate() which is too late.
I have not try to revert
[AMD Official Use Only]
To observe the issue. I made one kfdtest case for debug.
It just alloc a userptr memory and detect if memory is corrupted.
I can hit this failure in 2 minutes. :(
diff --git a/tests/kfdtest/src/KFDMemoryTest.cpp
b/tests/kfdtest/src/KFDMemoryTest.cpp
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