Blog

Userspace RCU 0.8.3 and 0.7.11

Sorry about the quick releases, but I though I should save our packagers some time by releasing this fix, so they can skip over yesterday's version. It fixes a higher-than-normal CPU usage in presence of long RCU read-side critical sections. It does not affect correctness of RCU, just the amount of CPU usage in very specific scenarios. Since there is only one new commit, I'm putting the full commit changelog (from the stable-0.8 branch) below.

LTTng Toolchain 2.4.0 is out!

Hi all!

After five release candidates, the LTTng 2.4 stable release, codenamed Époque Opaque, is finally ready!

Another Round of Releases for 2.4 Release Candidate Cycle

Theses releases provides fixes for the 2.4 release candidate cycle of the LTTng toolchain.

• 2014-01-29 lttng-modules 2.4.0-rc3 (changelog)
• 2014-01-29 lttng-ust 2.4.0-rc3 (changelog)
• 2014-01-29 lttng-tools 2.4.0-rc4 (changelog)

Available in the Download section.

LTTng-tools 2.4 RC3

This release provides fixes for the lttng-tools 2.4 release candidate cycle.

2014-01-14 lttng-tools 2.4.0-rc3:

• Fix: metadata stream should be always flagged as ready
• Fix: wrong check before destroying the viewer metadata stream
• Fix: race with the viewer and readiness of streams
• Fix: missing reset when listing UST fields for multiple PIDs
• Fix: filter: check binary op nesting
• Fix: relayd cmd line option for live port
• Fix: remove break in epoll loop of apps. thread
• Fix: wrong comment in snapshot public API
• Fix: clear the CTF traces when all the streams are closed

Available in the Download section.