You may be aware that after kernel upgrade and kernel security patching you need to reboot Linux box. Now, there is a new patch called - Ksplice. It provides rebootless Linux kernel security update. It is available under GPL 2 and has been tested on Linux kernel versions from 2.6.8 to the recently released 2.6.25 and on several Linux distributions including Debian, Ubuntu, Red Hat Enterprise Linux and Gentoo Linux.
Ksplice allows system administrators to apply security patches to the Linux kernel without having to reboot. Ksplice takes as input a source code change in unified diff format and the kernel source code to be patched, and it applies the patch to the corresponding running kernel. The running kernel does not need to have been prepared in advance in any way.
To be fully automatic, Ksplice's design is limited to patches that do not introduce semantic changes to data structures, but most Linux kernel security patches don't make these kinds of changes. An evaluation against Linux kernel security patches from May 2005 to December 2007 finds that Ksplice can automatically apply 84% of the 50 significant kernel vulnerabilities from this interval.
Ksplice has been implemented for Linux on the x86-32 and x86-64 architectures.
=> Ksplice: Rebootless Linux kernel security updates (via zdnet)
Recently, Sun acquired MySQL for USD 1 billion. Today Trolltech announced that they have entered into an agreement that Nokia to acquire Trolltech for USD 150 million. Congratulations, Eirik, Haavard and the crew.
Trolltech created Qt, a multi-platform C++ Graphical User Interfaces (GUI) framework which also includes packages such as data structures and a networking library. The popular free Unix desktop environment KDE uses. From the press release:
Nokia and Trolltech ASA today announced that they have entered into an agreement that Nokia will make a public voluntary tender offer to acquire Trolltech (www.trolltech.com), a company headquartered in Oslo, Norway and publicly listed on the Oslo Stock Exchange. Trolltech is a recognized software provider with world-class software development platforms and frameworks. In addition to the key software assets, its talented team will play an important role in accelerating the implementation of Nokia's software strategy.
Nokia will offer NOK 16 per share in cash. The board of directors of Trolltech has unanimously recommended that its shareholders accept Nokia's Offer. Holders of 35,024,830 shares, representing approximately 66,43 % of Trolltech's issued shares and votes have as of January 27, 2008 irrevocably undertaken to accept the Offer. Haavard Nord, Vuonislahti Invest AS (controlled by Eirik Chambe-Eng), Teknoinvest and certain funds managed by Index Ventures are among the shareholders who have agreed to tender their shares to Nokia.