lttng team mailing list archive

[Andrea Righi <2003082@xxxxxxxxxxxxxxxxxx>]

debdiff v2: do not break lttng-probe-random in linux 5.15.

** Patch added: "jammy-lttng-modules-dkms-support-linux-5.19-v2.debdiff"
   https://bugs.launchpad.net/ubuntu/+source/lttng-modules/+bug/2003082/+attachment/5641960/+files/jammy-lttng-modules-dkms-support-linux-5.19-v2.debdiff

** Also affects: lttng-modules (Ubuntu Jammy)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/2003082

Title:
  lttng-modules-dkms fails to build on jammy with the latest 5.19 kernel

Status in lttng-modules package in Ubuntu:
  New
Status in lttng-modules source package in Jammy:
  New

Bug description:
  [Impact]

  lttng-modules-dkms fails to build with the latest 5.19 kernel:

  /var/lib/dkms/lttng-
  modules/2.13.1/build/src/probes/../../include/lttng/tracepoint-event-
  impl.h:133:6: error: conflicting types for ‘trace_sched_switch’; have
  ‘void(bool,  struct task_struct *, struct task_struct *)’ {aka
  ‘void(_Bool,  struct task_struct *, struct task_struct *)’}

  
  (along with other errors, due to the different ABI introduced by 5.19)

  [Test case]

   $ sudo apt install lttng-modules-dkms

  [Fix]

  Cherry pick patches from the version in kinetic to properly support
  the new ABI (kernels >= 5.19).

  [Regression potential]

  We may experience regressions with kernels >= 5.19 that are using
  lttng, previous kernels are not affected by the new ABI changes.

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