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boundary="===============1909092934==" Errors-To: amd-gfx-bounces@lists.freedesktop.org Sender: "amd-gfx" --===============1909092934== Content-Language: de-DE Content-Type: multipart/alternative; boundary="_000_32e5b144228c44d985763941dc99d8d5emailandroidcom_" --_000_32e5b144228c44d985763941dc99d8d5emailandroidcom_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi guys, thanks for pointing this out Nirmoy. Yeah, could be that I forgot to commit the patch. Currently I don't know at= which end of the chaos I should start to clean up. Christian. Am 25.03.2020 12:09 schrieb "Das, Nirmoy" : Hi Xinhui, Can you please check if you can reproduce the crash with https://lists.freedesktop.org/archives/amd-gfx/2020-February/046414.html Christian fix it earlier, I think he forgot to push it. Regards, Nirmoy On 3/25/20 12:07 PM, xinhui pan wrote: > gpu recover will call sdma suspend/resume. In this period, ring will be > disabled. So the vm_pte_scheds(sdma.instance[X].ring.sched)->ready will > be false. > > If we submit any jobs in this ring-disabled period. We fail to pick up > a rq for vm entity and entity->rq will set to NULL. > amdgpu_vm_sdma_commit did not check the entity->rq, so fix it. Otherwise > hit panic. > > Cc: Christian K=F6nig > Cc: Alex Deucher > Cc: Felix Kuehling > Signed-off-by: xinhui pan > --- > drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c b/drivers/gpu/dr= m/amd/amdgpu/amdgpu_vm_sdma.c > index cf96c335b258..d30d103e48a2 100644 > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c > @@ -95,6 +95,8 @@ static int amdgpu_vm_sdma_commit(struct amdgpu_vm_updat= e_params *p, > int r; > > entity =3D p->direct ? &p->vm->direct : &p->vm->delayed; > + if (!entity->rq) > + return -ENOENT; > ring =3D container_of(entity->rq->sched, struct amdgpu_ring, sched= ); > > WARN_ON(ib->length_dw =3D=3D 0); Am 25.03.2020 12:09 schrieb "Das, Nirmoy" : Hi Xinhui, Can you please check if you can reproduce the crash with https://lists.freedesktop.org/archives/amd-gfx/2020-February/046414.html Christian fix it earlier, I think he forgot to push it. Regards, Nirmoy On 3/25/20 12:07 PM, xinhui pan wrote: > gpu recover will call sdma suspend/resume. In this period, ring will be > disabled. So the vm_pte_scheds(sdma.instance[X].ring.sched)->ready will > be false. > > If we submit any jobs in this ring-disabled period. We fail to pick up > a rq for vm entity and entity->rq will set to NULL. > amdgpu_vm_sdma_commit did not check the entity->rq, so fix it. Otherwise > hit panic. > > Cc: Christian K=F6nig > Cc: Alex Deucher > Cc: Felix Kuehling > Signed-off-by: xinhui pan > --- > drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c b/drivers/gpu/dr= m/amd/amdgpu/amdgpu_vm_sdma.c > index cf96c335b258..d30d103e48a2 100644 > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c > @@ -95,6 +95,8 @@ static int amdgpu_vm_sdma_commit(struct amdgpu_vm_updat= e_params *p, > int r; > > entity =3D p->direct ? &p->vm->direct : &p->vm->delayed; > + if (!entity->rq) > + return -ENOENT; > ring =3D container_of(entity->rq->sched, struct amdgpu_ring, sched= ); > > WARN_ON(ib->length_dw =3D=3D 0); Am 25.03.2020 12:09 schrieb "Das, Nirmoy" : Hi Xinhui, Can you please check if you can reproduce the crash with https://lists.freedesktop.org/archives/amd-gfx/2020-February/046414.html Christian fix it earlier, I think he forgot to push it. Regards, Nirmoy On 3/25/20 12:07 PM, xinhui pan wrote: > gpu recover will call sdma suspend/resume. In this period, ring will be > disabled. So the vm_pte_scheds(sdma.instance[X].ring.sched)->ready will > be false. > > If we submit any jobs in this ring-disabled period. We fail to pick up > a rq for vm entity and entity->rq will set to NULL. > amdgpu_vm_sdma_commit did not check the entity->rq, so fix it. Otherwise > hit panic. > > Cc: Christian K=F6nig > Cc: Alex Deucher > Cc: Felix Kuehling > Signed-off-by: xinhui pan > --- > drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c b/drivers/gpu/dr= m/amd/amdgpu/amdgpu_vm_sdma.c > index cf96c335b258..d30d103e48a2 100644 > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c > @@ -95,6 +95,8 @@ static int amdgpu_vm_sdma_commit(struct amdgpu_vm_updat= e_params *p, > int r; > > entity =3D p->direct ? &p->vm->direct : &p->vm->delayed; > + if (!entity->rq) > + return -ENOENT; > ring =3D container_of(entity->rq->sched, struct amdgpu_ring, sched= ); > > WARN_ON(ib->length_dw =3D=3D 0); --_000_32e5b144228c44d985763941dc99d8d5emailandroidcom_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Hi guys,

thanks for pointing this out Nirmoy.

Yeah, could be that I forgot to commit the patch. Current= ly I don't know at which end of the chaos I should start to clean up.

Christian.

Am 25.03.2020 12:09 schrieb "Das, Nirmoy&= quot; <Nirmoy.Das@amd.com>:
Hi Xinhui,


Can you please check if you can reproduce the crash with
https://lists.freedesktop.org/archives/amd-gfx/2020-February/0464= 14.html

Christian fix it earlier, I think he forgot to push it.


Regards,

Nirmoy

On 3/25/20 12:07 PM, xinhui pan wrote:
> gpu recover will call sdma suspend/resume. In this period, ring will b= e
> disabled. So the vm_pte_scheds(sdma.instance[X].ring.sched)->ready = will
> be false.
>
> If we submit any jobs in this ring-disabled period. We fail to pick up=
> a rq for vm entity and entity->rq will set to NULL.
> amdgpu_vm_sdma_commit did not check the entity->rq, so fix it. Othe= rwise
> hit panic.
>
> Cc: Christian K=F6nig <christian.koenig@amd.com>
> Cc: Alex Deucher <alexander.deucher@amd.com>
> Cc: Felix Kuehling <Felix.Kuehling@amd.com>
> Signed-off-by: xinhui pan <xinhui.pan@amd.com>
> ---
>   drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c | 2 ++=
>   1 file changed, 2 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c b/drivers/gpu= /drm/amd/amdgpu/amdgpu_vm_sdma.c
> index cf96c335b258..d30d103e48a2 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c
> @@ -95,6 +95,8 @@ static int amdgpu_vm_sdma_commit(struct amdgpu_v= m_update_params *p,
>        int r;
>  
>        entity =3D p->direct ? &a= mp;p->vm->direct : &p->vm->delayed;
> +     if (!entity->rq)
> +           = ;  return -ENOENT;
>        ring =3D container_of(entity= ->rq->sched, struct amdgpu_ring, sched);
>  
>        WARN_ON(ib->length_dw =3D= =3D 0);


Am 25.03.2020 12:09 schrieb "Das, Nirmoy&= quot; <Nirmoy.Das@amd.com>:
Hi Xinhui,


Can you please check if you can reproduce the crash with
https://lists.freedesktop.org/archives/amd-gfx/2020-February/0464= 14.html

Christian fix it earlier, I think he forgot to push it.


Regards,

Nirmoy

On 3/25/20 12:07 PM, xinhui pan wrote:
> gpu recover will call sdma suspend/resume. In this period, ring will b= e
> disabled. So the vm_pte_scheds(sdma.instance[X].ring.sched)->ready = will
> be false.
>
> If we submit any jobs in this ring-disabled period. We fail to pick up=
> a rq for vm entity and entity->rq will set to NULL.
> amdgpu_vm_sdma_commit did not check the entity->rq, so fix it. Othe= rwise
> hit panic.
>
> Cc: Christian K=F6nig <christian.koenig@amd.com>
> Cc: Alex Deucher <alexander.deucher@amd.com>
> Cc: Felix Kuehling <Felix.Kuehling@amd.com>
> Signed-off-by: xinhui pan <xinhui.pan@amd.com>
> ---
>   drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c | 2 ++=
>   1 file changed, 2 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c b/drivers/gpu= /drm/amd/amdgpu/amdgpu_vm_sdma.c
> index cf96c335b258..d30d103e48a2 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c
> @@ -95,6 +95,8 @@ static int amdgpu_vm_sdma_commit(struct amdgpu_v= m_update_params *p,
>        int r;
>  
>        entity =3D p->direct ? &a= mp;p->vm->direct : &p->vm->delayed;
> +     if (!entity->rq)
> +           = ;  return -ENOENT;
>        ring =3D container_of(entity= ->rq->sched, struct amdgpu_ring, sched);
>  
>        WARN_ON(ib->length_dw =3D= =3D 0);


Am 25.03.2020 12:09 schrieb "Das, Nirmoy&= quot; <Nirmoy.Das@amd.com>:
Hi Xinhui,


Can you please check if you can reproduce the crash with
https://lists.freedesktop.org/archives/amd-gfx/2020-February/0464= 14.html

Christian fix it earlier, I think he forgot to push it.


Regards,

Nirmoy

On 3/25/20 12:07 PM, xinhui pan wrote:
> gpu recover will call sdma suspend/resume. In this period, ring will b= e
> disabled. So the vm_pte_scheds(sdma.instance[X].ring.sched)->ready = will
> be false.
>
> If we submit any jobs in this ring-disabled period. We fail to pick up=
> a rq for vm entity and entity->rq will set to NULL.
> amdgpu_vm_sdma_commit did not check the entity->rq, so fix it. Othe= rwise
> hit panic.
>
> Cc: Christian K=F6nig <christian.koenig@amd.com>
> Cc: Alex Deucher <alexander.deucher@amd.com>
> Cc: Felix Kuehling <Felix.Kuehling@amd.com>
> Signed-off-by: xinhui pan <xinhui.pan@amd.com>
> ---
>   drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c | 2 ++=
>   1 file changed, 2 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c b/drivers/gpu= /drm/amd/amdgpu/amdgpu_vm_sdma.c
> index cf96c335b258..d30d103e48a2 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c
> @@ -95,6 +95,8 @@ static int amdgpu_vm_sdma_commit(struct amdgpu_v= m_update_params *p,
>        int r;
>  
>        entity =3D p->direct ? &a= mp;p->vm->direct : &p->vm->delayed;
> +     if (!entity->rq)
> +           = ;  return -ENOENT;
>        ring =3D container_of(entity= ->rq->sched, struct amdgpu_ring, sched);
>  
>        WARN_ON(ib->length_dw =3D= =3D 0);
 --_000_32e5b144228c44d985763941dc99d8d5emailandroidcom_-- --===============1909092934== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ amd-gfx mailing list amd-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/amd-gfx --===============1909092934==--