From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mathieu Desnoyers Subject: [RELEASE] Userspace RCU 0.6.8 Date: Thu, 11 Oct 2012 12:23:09 -0400 Message-ID: <20121011162309.GA30801@Krystal> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org To: linux-kernel@vger.kernel.org, lttng-dev@lists.lttng.org, rp@svcs.cs.pdx.edu Cc: "Paul E. McKenney" , Lai Jiangshan , Stephen Hemminger List-Id: lttng-dev@lists.lttng.org liburcu is a LGPLv2.1 userspace RCU (read-copy-update) library. This data synchronization library provides read-side access which scales linearly with the number of cores. It does so by allowing multiples copies of a given data structure to live at the same time, and by monitoring the data structure accesses to detect grace periods after which memory reclamation is possible. liburcu-cds provides efficient data structures based on RCU and lock-free algorithms. Those structures include hash tables, queues, stacks, and doubly-linked lists. We are going forward with a stable-0.6 branch to push important fixes to the old 0.6.x series. Please note that the current 0.7.x branch has a different fix for this issue, which will be released shortly into 0.7.5. Please note that the bug below occurs very rarely, only when invoking call_rcu_data_free() for per-cpu or per-thread callback-invokation threads (typically before application exit). Changelog: 2012-09-11 Userspace RCU 0.6.8 * Fix: call_rcu list corruption on teardown Project website: http://lttng.org/urcu Download link: http://lttng.org/files/urcu/ -- Mathieu Desnoyers Operating System Efficiency R&D Consultant EfficiOS Inc. http://www.efficios.com