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[Launchpad Bug Tracker <1932165@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package lttng-modules -
2.12.5-1ubuntu2~20.04.1

---------------
lttng-modules (2.12.5-1ubuntu2~20.04.1) focal; urgency=medium

  * Use Impish version of lttng-modules with Focal (LP: #1932165).

lttng-modules (2.12.5-1ubuntu2) impish; urgency=medium

  * Cherry picks support for kernel v5.13 from upstream/stable-2.12

lttng-modules (2.12.5-1ubuntu1) impish; urgency=medium

  * Cherry picks support for kernel v5.12 from upstream/stable-2.12

lttng-modules (2.12.5-1) unstable; urgency=medium

  * [8e0b514] New upstream version 2.12.5
  * [9feae13] Refreshed patches
  * Add support for kernel v5.11
  * Add support for stable branch kernels with sublevel >=256

lttng-modules (2.12.4-1) unstable; urgency=medium

  * [46f9e6c] New upstream version 2.12.4

lttng-modules (2.12.3-1) unstable; urgency=medium

  * [5674e6f] New upstream version 2.12.3

 -- Andrea Righi <andrea.righi@xxxxxxxxxxxxx>  Tue, 13 Jul 2021 12:07:28
+0000

** Changed in: lttng-modules (Ubuntu Focal)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1932165

Title:
  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

Status in linux-hwe-5.11 package in Ubuntu:
  Invalid
Status in lttng-modules package in Ubuntu:
  New
Status in linux-hwe-5.11 source package in Focal:
  Invalid
Status in lttng-modules source package in Focal:
  Fix Released
Status in lttng-modules source package in Hirsute:
  Fix Committed

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_lttng_smoke_test from (git://kernel.ubuntu.com/ubuntu/autotest-
  client-tests)

  [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-5.11/5.11.0-20.21~20.04.1 on focal.
  Whether this is caused by the dep8 tests of the tested source or the
  kernel has yet to be determined.

  Testing failed on:
      amd64: https://autopkgtest.ubuntu.com/results/autopkgtest-focal/focal/amd64/l/lttng-modules/20210611_205859_b8295@/log.gz
      arm64: https://autopkgtest.ubuntu.com/results/autopkgtest-focal/focal/arm64/l/lttng-modules/20210612_123048_fc99b@/log.gz
      ppc64el: https://autopkgtest.ubuntu.com/results/autopkgtest-focal/focal/ppc64el/l/lttng-modules/20210611_210510_27086@/log.gz
      s390x: https://autopkgtest.ubuntu.com/results/autopkgtest-focal/focal/s390x/l/lttng-modules/20210611_210134_272f4@/log.gz

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