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The kernel column by Jon Masters #85

Apr 01, 2010, 15:02 (1 Talkback[s])
(Other stories by Jon Masters)

[ Thanks to Linux User & Developer magazine for this link. ]

"Another month, another kernel release. Last month saw what is hopefully the final RC (release candidate) 2.6.33 kernel, and so it should have been released by the time you read this. The latest kernel includes lots of shiny new features that have been developed over the past three months since 2.6.32, including some nice virtualisation speed-ups (detecting when virtual machine guest's VCPUs are within spinlocks and automatically yielding), driver updates and the removal of the legacy 'anticipatory' IO scheduler (long since replaced in function by the CFQ or 'Completely Fair Queuing' one).

"The latest kernel release brought with it the usual round of regression reports, compiled by the ever vigilant Rafael J Wysocki from the existing bug reports. These show a (slightly worrying) trend for regressions to go unfixed for some time between releases, although many of the more scary issues have been fixed. Others took the release opportunity to provide updates on their own special kernel source trees that are based upon the 2.6.33 kernel. This included Thomas Gleixner, who let us know that a 2.6.33 series Real Time kernel patchset would be available soon for those who are interested in developing the RT features. He had been delayed getting to this as he was fixing a somewhat ugly problem with unfortunate POSIX process priority semantics in the Real Time code."

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