linux-kernel - [RELEASE] LTTng modules 2.10.0-rc2, 2.9.3, 2.8.6

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Date:   Mon, 12 Jun 2017 22:06:22 +0000 (UTC)
From:   Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
To:     lttng-dev@...ts.lttng.org,
        diamon-discuss@...ts.linuxfoundation.org,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: [RELEASE] LTTng modules 2.10.0-rc2, 2.9.3, 2.8.6

The LTTng modules provide Linux kernel tracing capability to the LTTng
tracer toolset.

Those versions are bugfixes in the currently maintained stable
branches of lttng-modules. They mainly contain:

- Fix for the "PID tracker" feature, which should track pgid, which
  corresponds to the notion of process ID in user-space. It is now
  in sync with the feature in the UST tracing domain (application
  tracing),
- Adding a "flush empty" ioctl for snapshots fixes cases where the
  Babeltrace lttng-live reader has issues keeping up with a steady
  stream of useless empty packets. This "flush empty" ioctl is
  introduced in backwards and forwards compatible ways, to ensure
  smooth upgrade within the stable versions of lttng-tools and
  lttng-modules.

Those releases also add support for 4.12 release candidate kernels.

Enjoy!

Mathieu

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

Detailed change logs:

2017-06-12 (National Peanut Butter Cookie Day) LTTng modules 2.10.0-rc2
        * Fix: pid tracker should track "pgid"
        * Fix: Build ftrace probe on kernels prior to 4.12
        * Fix: update ftrace probe for kernel 4.12
        * Fix: update block instrumentation for kernel 4.12
        * Fix: Add support for 4.9.27-rt18 kernel
        * Fix: update btrfs instrumentation for kernel 4.12
        * Fix: update ringbuffer for kernel 4.12
        * Fix: update sched instrumentation for kernel 4.12
        * Fix: ext3 was completely removed from the kernel in v4.3
        * Fix: NULL pointer dereference of THIS_MODULE with built-in modules
        * Fix: add "flush empty" ioctl for stream intersection
        * Revert "Fix: flush empty packets on snapshot channel"
        * Revert "Fix: don't perform extra flush on metadata channel"

2017-06-12 (National Peanut Butter Cookie Day) LTTng modules 2.9.3
        * Fix: pid tracker should track "pgid"
        * Fix: Build ftrace probe on kernels prior to 4.12
        * Fix: update ftrace probe for kernel 4.12
        * Fix: update block instrumentation for kernel 4.12
        * Fix: Add support for 4.9.27-rt18 kernel
        * Fix: update btrfs instrumentation for kernel 4.12
        * Fix: update ringbuffer for kernel 4.12
        * Fix: update sched instrumentation for kernel 4.12
        * Fix: ext3 was completely removed from the kernel in v4.3
        * Fix: NULL pointer dereference of THIS_MODULE with built-in modules
        * Fix: add "flush empty" ioctl for stream intersection
        * Revert "Fix: flush empty packets on snapshot channel"
        * Revert "Fix: don't perform extra flush on metadata channel"
        * Fix: remove CONFIG_KALLSYMS_ALL warning on clean

2017-06-12 (National Peanut Butter Cookie Day) LTTng modules 2.8.6
        * Fix: pid tracker should track "pgid"
        * Fix: Build ftrace probe on kernels prior to 4.12
        * Fix: update ftrace probe for kernel 4.12
        * Fix: update block instrumentation for kernel 4.12
        * Fix: Add support for 4.9.27-rt18 kernel
        * Fix: update btrfs instrumentation for kernel 4.12
        * Fix: update ringbuffer for kernel 4.12
        * Fix: update sched instrumentation for kernel 4.12
        * Fix: ext3 was completely removed from the kernel in v4.3
        * Fix: NULL pointer dereference of THIS_MODULE with built-in modules
        * Fix: add "flush empty" ioctl for stream intersection
        * Revert "Fix: flush empty packets on snapshot channel"
        * Revert "Fix: don't perform extra flush on metadata channel"
        * Fix: remove CONFIG_KALLSYMS_ALL warning on clean

-- 
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com