[AMD Official Use Only - AMD Internal Distribution Only] Hi Mike,
Thanks for the logs. I can confirm that there is an SMU hang from within DMCUB firmware. We'll debug this further with another team and get back to you. -- Regards, Jay ________________________________ From: Mikhail Gavrilov <[email protected]> Sent: Sunday, June 1, 2025 5:37 PM To: Pillai, Aurabindo <[email protected]> Cc: Chung, ChiaHsuan (Tom) <[email protected]>; Wu, Ray <[email protected]>; Wheeler, Daniel <[email protected]>; Deucher, Alexander <[email protected]>; amd-gfx list <[email protected]>; dri-devel <[email protected]>; Linux List Kernel Mailing <[email protected]>; Linux regressions mailing list <[email protected]> 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 <[email protected]> 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.
