v4l2loopback fails to build with linux-hwe-edge 5.3

Bug #1844719 reported by Thadeu Lima de Souza Cascardo on 2019-09-19
This bug affects 1 person
Affects Status Importance Assigned to Milestone
v4l2loopback (Ubuntu)
Thadeu Lima de Souza Cascardo

Bug Description

v4l2loopback won't work with new kernels on bionic.

[Test case]
Install and load the modules.

[Regression potential]
This might break the functioning of the module.


On bionic, when linux-hwe-edge 5.3 is installed, v4l2loopback-dkms fails to build.

Changed in v4l2loopback (Ubuntu):
status: New → Invalid
Changed in v4l2loopback (Ubuntu Bionic):
assignee: nobody → Thadeu Lima de Souza Cascardo (cascardo)
status: New → In Progress

Hello Thadeu, or anyone else affected,

Accepted v4l2loopback into bionic-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/v4l2loopback/0.10.0-1ubuntu1.2 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested and change the tag from verification-needed-bionic to verification-done-bionic. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-bionic. In either case, without details of your testing we will not be able to proceed.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping!

N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days.

Changed in v4l2loopback (Ubuntu Bionic):
status: In Progress → Fix Committed
tags: added: verification-needed verification-needed-bionic
Marcelo Cerri (mhcerri) wrote :

I have tested this version and the DKMS package successfully builds and loads. I also have run the ADT tests for the following kernels to ensure there's no regressions:

- linux-generic 4.15.0-66.75
- linux-azure 5.0.0-1023.24~18.04.1
- linux-hwe-edge 5.3.0-19.20~18.04.2

tags: added: verification-done verification-done-bionic
removed: verification-needed verification-needed-bionic

The verification of the Stable Release Update for v4l2loopback has completed successfully and the package is now being released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regressions.

Launchpad Janitor (janitor) wrote :

This bug was fixed in the package v4l2loopback - 0.10.0-1ubuntu1.2

v4l2loopback (0.10.0-1ubuntu1.2) bionic; urgency=medium

  * Fix build for kernel 5.3 (LP: #1844719)
    - 0003-Replace-v4l2_get_timestamp-with-ktime_get_ts-64

 -- Thadeu Lima de Souza Cascardo <email address hidden> Thu, 19 Sep 2019 16:06:37 -0300

Changed in v4l2loopback (Ubuntu Bionic):
status: Fix Committed → Fix Released
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