Isn't from me... damn keyboard
-邮件原件-
发件人: amd-gfx 代表 Liu, Monk
发送时间: 2020年2月20日 23:24
收件人: Das, Nirmoy ; amd-gfx@lists.freedesktop.org
主题: 回复: 回复: [PATCH] drm/amdgpu: fix a bug NULL pointer dereference
I don't know
The patch is from me, I just think the patch is dropping a vm update
I don't know
The patch is from me, I just think the patch is dropping a vm update which
looks not perfect to me
-邮件原件-
发件人: amd-gfx 代表 Nirmoy
发送时间: 2020年2月20日 23:21
收件人: amd-gfx@lists.freedesktop.org
主题: Re: 回复: [PATCH] drm/amdgpu: fix a bug NULL pointer dereference
Hi Monk,
How can
Hi Monk,
How can I reproduce this bug ?
Regards,
Nirmoy
On 2/20/20 4:15 PM, Nirmoy wrote:
On 2/20/20 2:35 PM, Liu, Monk wrote:
Sorry, my previous idea still leave RQ null, please check if below
method works:
29 static struct drm_sched_rq *
130 drm_sched_entity_get_free_sched(struct
On 2/20/20 2:35 PM, Liu, Monk wrote:
Sorry, my previous idea still leave RQ null, please check if below method works:
29 static struct drm_sched_rq *
130 drm_sched_entity_get_free_sched(struct drm_sched_entity *entity)
131 {
132 struct drm_sched_rq *rq = NULL;
133 unsigned int
Dennis ; Koenig, Christian
; Zhang, Hawking ;
amd-gfx@lists.freedesktop.org; Deucher, Alexander ;
Zhou1, Tao ; Chen, Guchun
主题: 回复: [PATCH] drm/amdgpu: fix a bug NULL pointer dereference
so the scenario is:
KMD doing page update -> ECC -> baco reset (mute SDMA scheduler) ->
drm_sched_entity_ge
;
Zhou1, Tao ; Chen, Guchun
主题: RE: [PATCH] drm/amdgpu: fix a bug NULL pointer dereference
[AMD Official Use Only - Internal Distribution Only]
Hi, Christian and Monk,
When doing SDMA copy, a RAS uncorrectable error happens, which will cause
this issue. The RAS uncorrectable error event will
st Regards
Dennis Li
-Original Message-
From: Liu, Monk
Sent: Wednesday, February 19, 2020 7:30 PM
To: Koenig, Christian ; Zhang, Hawking ; Li, Dennis
; amd-gfx@lists.freedesktop.org; Deucher, Alexander ;
Zhou1, Tao ; Chen, Guchun
Subject: 回复: [PATCH] drm/amdgpu: fix a bug NULL poi
amd-gfx@lists.freedesktop.org; Deucher, Alexander ;
Zhou1, Tao ; Chen, Guchun
Subject: 回复: [PATCH] drm/amdgpu: fix a bug NULL pointer dereference
> + if (!entity->rq)
> + return 0;
> +
Yes, supposedly we shouldn't get 'entity->rq == NULL' case , that looks the
tr
op.org; Deucher, Alexander ;
Zhou1, Tao ; Chen, Guchun
主题: Re: [PATCH] drm/amdgpu: fix a bug NULL pointer dereference
Well of hand this patch looks like a clear NAK to me.
Returning without raising an error is certainly the wrong thing to do here
because we just drop the necessary page table upd
hen, Guchun
Cc: Li, Dennis
Subject: [PATCH] drm/amdgpu: fix a bug NULL pointer dereference
check whether the queue of entity is null to avoid null pointer dereference.
Change-Id: I08d56774012cf229ba2fe7a011c1359e8d1e2781
Signed-off-by: Dennis Li
diff --git a/drivers/gpu/drm/amd/amd
, Dennis
Subject: [PATCH] drm/amdgpu: fix a bug NULL pointer dereference
check whether the queue of entity is null to avoid null pointer dereference.
Change-Id: I08d56774012cf229ba2fe7a011c1359e8d1e2781
Signed-off-by: Dennis Li
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c
b/drivers/gpu
check whether the queue of entity is null to avoid null
pointer dereference.
Change-Id: I08d56774012cf229ba2fe7a011c1359e8d1e2781
Signed-off-by: Dennis Li
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c
index 4cc7881f438c..67cca463ddcc
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