lttng-modules/2.12.2-1ubuntu1~20.04.2 ADT test failure with linux-hwe-5.11/5.11.0-20.21~20.04.1
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux-hwe-5.11 (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Focal |
Invalid
|
Undecided
|
Unassigned | ||
lttng-modules (Ubuntu) |
New
|
Undecided
|
Unassigned | ||
Focal |
Fix Released
|
Critical
|
Dimitri John Ledkov | ||
Hirsute |
Fix Released
|
Undecided
|
Unassigned |
Bug Description
[Impact]
lttng-modules-dkms is reporting many build errors with linux-hwe-5.11, because of many kernel ABI changes.
[Fix]
Backporting the individual patches to fix all the build errors would be a lot of work and the risk to introduce regressions would be pretty high, therefore it seems safer to update to the version that is also used in impish, that works with 5.11 and it's backward compatible (so it works also with 5.4).
[Test]
ubuntu_
[Where problems could occur]
This is a major version update, so it does not contain trivial changes as backporting individual patches/fixes, so there's a risk to see regressions with lttng (however potential regressions are *only* limited to lttng).
However, this way is definitely safer than backporting all the individual changes to fix the all the kernel ABI changes introduced in 5.11.
[Original bug report]
This is a scripted bug report about ADT failures while running lttng-modules tests for linux-hwe-
Testing failed on:
amd64: https:/
arm64: https:/
ppc64el: https:/
s390x: https:/
tags: | added: kernel-adt-failure |
Changed in lttng-modules (Ubuntu Focal): | |
status: | New → Confirmed |
tags: | added: patch |
description: | updated |
Changed in lttng-modules (Ubuntu Focal): | |
milestone: | none → ubuntu-20.04.3 |
importance: | Undecided → Critical |
assignee: | nobody → Dimitri John Ledkov (xnox) |
I've just created a ppa with the latest lttng-modules-dkms from impish recompiled for focal
https:/ /launchpad. net/~arighi/ +archive/ ubuntu/ lttng/
And tested (ubuntu_ lttng_smoke_ test) with the 5.11 hwe and 5.4 kernels. Everything looks good with both kernels.
The debdiff in attach (against the impish version) only contains the changelog entry to backport the version from impish to focal.