alsa/sof: fix the hang issue on Dell Nebula MP platforms

Bug #1845904 reported by Hui Wang
This bug affects 1 person
Affects Status Importance Assigned to Milestone
HWE Next
linux-oem-osp1 (Ubuntu)
Hui Wang

Bug Description

Hanging after installation on Nebula MP.
Reported by ODM and we also can reproduce on the MP machine
that ODM provided

Intel debugged this issue for half month, finally they provided
4 patches to fix it. Intel tested these 4 patches on many many
sof machines, they worked well.

[Test Case]
Install oem image to Nebula MP machines, there is no hang anymore,
and the audio functions all work well.

[Regression Risk]
Low. Intel already tested these patches on many machines. And
we also teste them, the original issue is fixed by them and no
new issues found.

Hui Wang (
Changed in linux-oem-osp1 (Ubuntu):
importance: Undecided → Critical
tags: added: originate-from-1841562 somerville
Hui Wang (
description: updated
Timo Aaltonen (tjaalton)
Changed in linux-oem-osp1 (Ubuntu Bionic):
status: New → Fix Committed
Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package linux-oem-osp1 - 5.0.0-1024.27

linux-oem-osp1 (5.0.0-1024.27) bionic; urgency=medium

  * bionic/linux-oem-osp1: <version to be filled> -proposed tracker
    (LP: #1846023)

  * alsa/sof: fix the hang issue on Dell Nebula MP platforms (LP: #1845904)
    - ALSA: hda: clear output link mappinp
    - ALSA: SOF: disable L1SEN for capture stream
    - ALSA: sof: refine stop-start sequence for driver and FW
    - ALSA: sof: disable debug message for production release

  [ Ubuntu: 5.0.0-31.33 ]

  * disco/linux: 5.0.0-31.33 -proposed tracker (LP: #1846026)
  * Packaging resync (LP: #1786013)
    - [Packaging] update helper scripts
  * /proc/self/maps paths missing on live session (was vlc won't start; eoan
    19.10 & bionic 18.04 ubuntu/lubuntu/kubuntu/xubuntu/ubuntu-mate dailies)
    (LP: #1842382)
    - SAUCE: Revert "UBUNTU: SAUCE: shiftfs: enable overlayfs on shiftfs"

 -- Timo Aaltonen <email address hidden> Fri, 04 Oct 2019 11:24:05 +0300

Changed in linux-oem-osp1 (Ubuntu Bionic):
status: Fix Committed → Fix Released
Changed in linux-oem-osp1 (Ubuntu):
status: New → Fix Released
Changed in hwe-next:
status: New → Fix Released
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