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Linux Kernel Development News

The latest word about Linux kernel development, from and authoritative sources around the Internet.

Btrfs Hands-on: Exploring the Error Recovery Features of the New Linux File System

Making things right when something goes wrong, and a summary of what I have seen and done in this series.

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Cook: Live Patching the Kernel

Over on his blog, kernel security developer Kees Cook has a description of live patching the kernel to disable the kexec system call in older kernels. The idea is to be able to turn off kexec without rebuilding the older kernels (future kernels may be able to use the proposed...

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File-Systems Appear To Slowdown On Linux 3.13 Kernel

Our initial file-system testing of EXT4, XFS, Btrfs, and F2FS from the Linux 3.13 kernel appear to reveal that the performance overall is slower than when using the Linux 3.12 kernel on the same software/hardware configuration.

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Intel Developer Finds 50 Watt Power Regression In Linux

An Intel Linux kernel developer has discovered that since the Linux 3.10 kernel one of his powerful Xeon-based systems is going through 50 Watts more energy while idling than on pre-3.10 kernels. This power regression could affect smaller systems too, but fortunately the issue has been bisected and an investigation...

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Stable Kernel Updates for the Weekend

The 3.12.4, 3.10.23, and 3.4.73 stable kernel updates are available. These updates contain fewer patches than their immediate predecessors, but they still have a lot of important fixes and updates.

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