expect it'll come and bite us pretty bad.
>
> Fundamentally you can't have indefinite fences with implicit synced
> CS, and long running jobs is just one of these indefinite fences.
Adding Jason, he's been involved in a lot of the indefinite fence
discussion, especially around vk.
-Daniel
&
t; John
> > > Original Message
> > > From: Daniel Vetter
> > > Sent: Wednesday, February 3, 2021 9:27 AM
> > > To: Alex Deucher
> > > Cc: Linux Kernel Mailing List; dri-devel; amd-gfx list; Deucher,
> > > Alexander; Daniel Gomez; Koenig, Christian
&
y, February 3, 2021 9:27 AM
> > To: Alex Deucher
> > Cc: Linux Kernel Mailing List; dri-devel; amd-gfx list; Deucher, Alexander;
> > Daniel Gomez; Koenig, Christian
> > Subject: Re: [amdgpu] deadlock
> >
> >
> > On Wed, Feb 03, 2021 at 08:56:17AM -0500, Al
On Wed, 3 Feb 2021 at 15:37, Christian König wrote:
>
> Hi Daniel,
>
> I've talked a bit with our internal team.
>
> The problem is that the 20.20 release still uses the older OpenCL stack
> which obviously has a bug here and causes a hang.
>
> The best approach I can give you is to switch to the
Mailing List; dri-devel; amd-gfx list; Deucher, Alexander;
> Daniel Gomez; Koenig, Christian
> Subject: Re: [amdgpu] deadlock
>
>
> On Wed, Feb 03, 2021 at 08:56:17AM -0500, Alex Deucher wrote:
> > On Wed, Feb 3, 2021 at 7:30 AM Christian König
> > wrote:
> > &g
Hi Daniel,
I've talked a bit with our internal team.
The problem is that the 20.20 release still uses the older OpenCL stack
which obviously has a bug here and causes a hang.
The best approach I can give you is to switch to the ROCm stack instead.
Regards,
Christian.
Am 03.02.21 um 09:33 sc
m: Daniel Vetter
Sent: Wednesday, February 3, 2021 9:27 AM
To: Alex Deucher
Cc: Linux Kernel Mailing List; dri-devel; amd-gfx list; Deucher, Alexander;
Daniel Gomez; Koenig, Christian
Subject: Re: [amdgpu] deadlock
On Wed, Feb 03, 2021 at 08:56:17AM -0500, Alex Deucher wrote:
> On Wed, Feb 3, 2021 at
On Wed, Feb 03, 2021 at 08:56:17AM -0500, Alex Deucher wrote:
> On Wed, Feb 3, 2021 at 7:30 AM Christian König
> wrote:
> >
> > Am 03.02.21 um 13:24 schrieb Daniel Vetter:
> > > On Wed, Feb 03, 2021 at 01:21:20PM +0100, Christian König wrote:
> > >> Am 03.02.21 um 12:45 schrieb Daniel Gomez:
> >
On Wed, Feb 3, 2021 at 7:30 AM Christian König wrote:
>
> Am 03.02.21 um 13:24 schrieb Daniel Vetter:
> > On Wed, Feb 03, 2021 at 01:21:20PM +0100, Christian König wrote:
> >> Am 03.02.21 um 12:45 schrieb Daniel Gomez:
> >>> On Wed, 3 Feb 2021 at 10:47, Daniel Gomez wrote:
> On Wed, 3 Feb 20
Am 03.02.21 um 13:24 schrieb Daniel Vetter:
On Wed, Feb 03, 2021 at 01:21:20PM +0100, Christian König wrote:
Am 03.02.21 um 12:45 schrieb Daniel Gomez:
On Wed, 3 Feb 2021 at 10:47, Daniel Gomez wrote:
On Wed, 3 Feb 2021 at 10:17, Daniel Vetter wrote:
On Wed, Feb 3, 2021 at 9:51 AM Christian
On Wed, Feb 03, 2021 at 01:21:20PM +0100, Christian König wrote:
> Am 03.02.21 um 12:45 schrieb Daniel Gomez:
> > On Wed, 3 Feb 2021 at 10:47, Daniel Gomez wrote:
> > > On Wed, 3 Feb 2021 at 10:17, Daniel Vetter wrote:
> > > > On Wed, Feb 3, 2021 at 9:51 AM Christian König
> > > > wrote:
> > >
Am 03.02.21 um 12:45 schrieb Daniel Gomez:
On Wed, 3 Feb 2021 at 10:47, Daniel Gomez wrote:
On Wed, 3 Feb 2021 at 10:17, Daniel Vetter wrote:
On Wed, Feb 3, 2021 at 9:51 AM Christian König wrote:
Am 03.02.21 um 09:48 schrieb Daniel Vetter:
On Wed, Feb 3, 2021 at 9:36 AM Christian König wr
On Wed, 3 Feb 2021 at 10:47, Daniel Gomez wrote:
>
> On Wed, 3 Feb 2021 at 10:17, Daniel Vetter wrote:
> >
> > On Wed, Feb 3, 2021 at 9:51 AM Christian König
> > wrote:
> > >
> > > Am 03.02.21 um 09:48 schrieb Daniel Vetter:
> > > > On Wed, Feb 3, 2021 at 9:36 AM Christian König
> > > > wrote
On Wed, 3 Feb 2021 at 10:17, Daniel Vetter wrote:
>
> On Wed, Feb 3, 2021 at 9:51 AM Christian König
> wrote:
> >
> > Am 03.02.21 um 09:48 schrieb Daniel Vetter:
> > > On Wed, Feb 3, 2021 at 9:36 AM Christian König
> > > wrote:
> > >> Hi Daniel,
> > >>
> > >> this is not a deadlock, but rather
On Wed, Feb 3, 2021 at 9:51 AM Christian König wrote:
>
> Am 03.02.21 um 09:48 schrieb Daniel Vetter:
> > On Wed, Feb 3, 2021 at 9:36 AM Christian König
> > wrote:
> >> Hi Daniel,
> >>
> >> this is not a deadlock, but rather a hardware lockup.
> > Are you sure? Ime getting stuck in dma_fence_wai
On Wed, 3 Feb 2021 at 09:51, Christian König wrote:
>
> Am 03.02.21 um 09:48 schrieb Daniel Vetter:
> > On Wed, Feb 3, 2021 at 9:36 AM Christian König
> > wrote:
> >> Hi Daniel,
> >>
> >> this is not a deadlock, but rather a hardware lockup.
> > Are you sure? Ime getting stuck in dma_fence_wait
Am 03.02.21 um 09:48 schrieb Daniel Vetter:
On Wed, Feb 3, 2021 at 9:36 AM Christian König wrote:
Hi Daniel,
this is not a deadlock, but rather a hardware lockup.
Are you sure? Ime getting stuck in dma_fence_wait has generally good
chance of being a dma_fence deadlock. GPU hang should never r
On Wed, Feb 3, 2021 at 9:36 AM Christian König wrote:
>
> Hi Daniel,
>
> this is not a deadlock, but rather a hardware lockup.
Are you sure? Ime getting stuck in dma_fence_wait has generally good
chance of being a dma_fence deadlock. GPU hang should never result in
a forever stuck dma_fence.
Dan
Hi Daniel,
this is not a deadlock, but rather a hardware lockup.
Which OpenCl stack are you using?
Regards,
Christian.
Am 03.02.21 um 09:33 schrieb Daniel Gomez:
Hi all,
I have a deadlock with the amdgpu mainline driver when running in parallel two
OpenCL applications. So far, we've been abl
Hi all,
I have a deadlock with the amdgpu mainline driver when running in parallel two
OpenCL applications. So far, we've been able to replicate it easily by executing
clinfo and MatrixMultiplication (from AMD opencl-samples). It's quite old the
opencl-samples so, if you have any other suggestion
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