linux-kernel - Re: amdgpu hang on picasso

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Date:   Mon, 1 Nov 2021 16:49:33 +0000
From:   Ken Moffat <zarniwhoop@...world.com>
To:     "Zhu, James" <James.Zhu@....com>
Cc:     "Deucher, Alexander" <Alexander.Deucher@....com>,
        "Zhang, Yifan" <Yifan1.Zhang@....com>,
        "Kuehling, Felix" <Felix.Kuehling@....com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: amdgpu hang on picasso

On Mon, Nov 01, 2021 at 03:20:43PM +0000, Zhu, James wrote:
> [AMD Official Use Only]
> 
> Hi Ken
> 
> can you share the entire dmesg log?
> 
> 
> Thanks & Best Regards!
> 
> 
> James Zhu
> 

I'm attaching it - booted vanilla rc7, saved dmesg, then ran startx
and did an emergency sync.  At that point I tried to change to a
different tty, and to my surprise managed that by some sort of
random hit ctrl-alt-Fn sequence (i.e. it didn't work at first, then
the screen blanked and I got to a tty login prompt.

So here's the second version with some more messages at the end.

ĸen
> ________________________________
> From: Ken Moffat <zarniwhoop@...world.com>
> Sent: Saturday, October 30, 2021 2:52 PM
> To: Deucher, Alexander <Alexander.Deucher@....com>; Zhang, Yifan <Yifan1.Zhang@....com>; Zhu, James <James.Zhu@....com>
> Cc: Kuehling, Felix <Felix.Kuehling@....com>; Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
> Subject: amdgpu hang on picasso
> 
> When I tried 5.15-rc7 on my picasso APU (Ryzen 5 3400G), trying to
> run 'startx' (I'm using X11 and logging in to a tty) the output
> messages from X11 stopped after a few lines (normally, the desktop
> shows before I can read anything) and keyboard/mouse were
> inoperative - had to use Magic SysRQ to sync and reboot.
> 
> The log showed
> Oct 28 03:02:21 deluxe klogd: [   31.347235] amdgpu 0000:09:00.0: amdgpu: failed to write reg 28b4 wait reg 28c6
> Oct 28 03:02:34 deluxe klogd: [   44.280185] amdgpu 0000:09:00.0: amdgpu: failed to write reg 1a6f4 wait reg 1a706
> 
> I started bisecting after confireming that linus' tree with head at
> f25a5481af12 still showed the problem.  That identified the
> following commit, which reverts cleanly and allows Xorg to start:
> 
> commit 714d9e4574d54596973ee3b0624ee4a16264d700
> Author: Yifan Zhang <yifan1.zhang@....com>
> Date:   Tue Sep 28 15:42:35 2021 +0800
> 
>     drm/amdgpu: init iommu after amdkfd device init
> 
>     This patch is to fix clinfo failure in Raven/Picasso:
> 
>     Number of platforms: 1
>       Platform Profile: FULL_PROFILE
>       Platform Version: OpenCL 2.2 AMD-APP (3364.0)
>       Platform Name: AMD Accelerated Parallel Processing
>       Platform Vendor: Advanced Micro Devices, Inc.
>       Platform Extensions: cl_khr_icd cl_amd_event_callback
> 
>       Platform Name: AMD Accelerated Parallel Processing Number of devices: 0
> 
>     Signed-off-by: Yifan Zhang <yifan1.zhang@....com>
>     Reviewed-by: James Zhu <James.Zhu@....com>
>     Tested-by: James Zhu <James.Zhu@....com>
>     Acked-by: Felix Kuehling <Felix.Kuehling@....com>
>     Signed-off-by: Alex Deucher <alexander.deucher@....com>
> 
>  drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> I've got a laptop with raven, I'll try to find time to test it that
> also shows he problem in the next few days.
> 
> ĸen

-- 
Vetinari smiled. "Can you keep a secret, Mister Lipwig?"
"Oh, yes, sir. I've kept lots."
"Capital. And the point is, so can I. You do not need to know.”

View attachment "dmesg.picasso" of type "text/plain" (66051 bytes)