TGL-H skl_dram_get_dimm_info crashes with "Missing case (val == 65535)"

Bug #1933274 reported by Jeremy Soller
This bug affects 2 people
Affects Status Importance Assigned to Milestone
linux (Ubuntu)

Bug Description

Tracing this back, I found the current Ubuntu 5.11 kernel has incorrect offsets for some platforms (TGL-H and ADL). I created an upstream bug at and was directed to a commit, 5d0c938ec9cc, that ought to fix this issue. See the attached patch file for this commit applied to the current Ubuntu 5.11 kernel.

Tags: patch
Revision history for this message
Jeremy Soller (jackpot51) wrote :
tags: added: patch
Revision history for this message
Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote : Missing required logs.

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1933274

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

Changed in linux (Ubuntu):
status: New → Incomplete
Revision history for this message
Adrian Adamski (maidy-adr) wrote :

Hey, it says bug status is "Incomplete", but shouldn't it be moved from this status?

I think that there is a very specific information in description and attachments so maybe logs are not needed?

Revision history for this message
Kai-Heng Feng (kaihengfeng) wrote :

Is the full series needed?

Can you please send the backport to Ubuntu kernel mailing list by following

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