linux-kernel - Re: 6.15-rc6/regression/bisected - after commit f1c6be3999d2 error appeared: *ERROR* dc_dmub_srv_log_diagnostic

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Message-ID: <CABXGCsMZfXb-U2sHtpEehpfFsAqm9xMajBSnQfRNidm-=Fx1Qw@mail.gmail.com>
Date: Mon, 2 Jun 2025 02:37:34 +0500
From: Mikhail Gavrilov <mikhail.v.gavrilov@...il.com>
To: "Pillai, Aurabindo" <Aurabindo.Pillai@....com>
Cc: "Chung, ChiaHsuan (Tom)" <ChiaHsuan.Chung@....com>, "Wu, Ray" <Ray.Wu@....com>, 
	"Wheeler, Daniel" <Daniel.Wheeler@....com>, "Deucher, Alexander" <Alexander.Deucher@....com>, 
	amd-gfx list <amd-gfx@...ts.freedesktop.org>, dri-devel <dri-devel@...ts.freedesktop.org>, 
	Linux List Kernel Mailing <linux-kernel@...r.kernel.org>, 
	Linux regressions mailing list <regressions@...ts.linux.dev>
Subject: Re: 6.15-rc6/regression/bisected - after commit f1c6be3999d2 error
 appeared: *ERROR* dc_dmub_srv_log_diagnostic_data: DMCUB error

On Sat, May 31, 2025 at 1:13 AM Pillai, Aurabindo
<Aurabindo.Pillai@....com> wrote:
>
> [AMD Official Use Only - AMD Internal Distribution Only]
>
>
> Hi Mike,
>
> Thanks for the logs. I've reverted the patch in amd-staging-drm-next and also sent the patch to the stable list.
>
> If its possible, please also collect the dmcub trace log (cat /sys/kernel/debug/dri/0/amdgpu_dm_dmub_tracebuffer) after the hang. Its usually dri/0 or dri/1 folder

Hi Aurabindo,

I’ve attached the amdgpu_dm_dmub_tracebuffer and the full kernel log
captured after the hang on the 6900XT.

Let me know if you need any additional data or testing.

-- 
Best Regards,
Mike Gavrilov.

Download attachment "amdgpu_dm_dmub_tracebuffer.zip" of type "application/zip" (713 bytes)

Download attachment "dmesg.zip" of type "application/zip" (3353106 bytes)