Backport ACPI module-level code functionality

Bug #1835357 reported by Kai-Heng Feng on 2019-07-04
This bug affects 1 person
Affects Status Importance Assigned to Milestone
HWE Next
linux (Ubuntu)
linux-oem (Ubuntu)

Bug Description

After S3, DVD-ROM on HP ZBook 17 G5 stops working.

In the past we use dmi_match to set acpi_gbl_parse_table_as_term_list,
so the ACPI core can parse an entire ACPI table as a method.

Unfotunately this workaround doesn't work for the system in question.

So fully backport commit 5a8361f7ecce ("ACPICA: Integrate package
handling with module-level code") and subsequent fix commits, to solve
the issue.

After applying the fix, DVD-ROM keeps working after S3.

[Regression Potential]
Medium. I've test several systems and I don't see anything break.
But if we want to be safe, we can merge this into Bionic after we are
sure there's no regression on OEM-B.

tags: added: oem-priority originate-from-1834574 stella

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 1835357

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
Changed in linux (Ubuntu Bionic):
status: New → Incomplete
AceLan Kao (acelankao) on 2019-07-19
Changed in linux-oem (Ubuntu Bionic):
status: New → Fix Committed

This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-bionic' to 'verification-done-bionic'. If the problem still exists, change the tag 'verification-needed-bionic' to 'verification-failed-bionic'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See for documentation how to enable and use -proposed. Thank you!

tags: added: verification-needed-bionic
tags: added: verification-done-bionic
removed: verification-needed-bionic
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package linux-oem - 4.15.0-1050.57

linux-oem (4.15.0-1050.57) bionic; urgency=medium

  * bionic/linux-oem: 4.15.0-1050.57 -proposed tracker (LP: #1839261)

  * Packaging resync (LP: #1786013)
    - [Packaging] update helper scripts

  [ Ubuntu: 4.15.0-58.64 ]

  * unable to handle kernel NULL pointer dereference at 000000000000002c (IP:
    iget5_locked+0x9e/0x1f0) (LP: #1838982)
    - Revert "ovl: set I_CREATING on inode being created"
    - Revert "new primitive: discard_new_inode()"

 -- Chia-Lin Kao (AceLan) <email address hidden> Wed, 07 Aug 2019 18:14:17 +0800

Changed in linux-oem (Ubuntu Bionic):
status: Fix Committed → Fix Released
Changed in linux-oem (Ubuntu):
status: New → Fix Released
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