[RELEASE] LTTng-modules 2.12.7 and 2.13.1 (Linux kernel tracer)

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This is a release announcement for the LTTng Linux kernel tracer 2.12.7 and
2.13.1 releases. Both are bug fix releases in the lttng-modules stable branches.
They also enable support for the most recent Linux kernel releases.

LTTng-modules 2.12.7 contains instrumentation fixes for the 5.14, 5.15 and
5.16-rc Linux kernels. Kernel version ranges were adjusted for instrumentation
of the RHEL 8.4 kernel.

LTTng-modules 2.13.1 fixes scenarios where trigger actions are missing:

    There is an issue when associating multiple actions to a single system
    call, where the first action is effectively added, but the following
    actions are silently ignored.

The affected on-event trigger is a feature newly introduced in 2.13.

This 2.13.1 release also contains instrumentation fixes for the 5.15 and 5.16-rc
Linux kernels. It now emits a warning in the kernel console whenever registration
of events internally fails within LTTng-modules, for example in case of
out-of-memory error.

As always, feedback is welcome!



Project website: https://lttng.org
Documentation: https://lttng.org/docs
Download link: https://lttng.org/download

Mathieu Desnoyers
EfficiOS Inc.

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