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



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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Garrett: Subverting Security with kexec

Matthew Garrett demonstrates how to use the kexec() system call to change parameters in a running kernel. "The beauty of this approach is that it doesn't rely on any kernel bugs - it's using kernel functionality that was explicitly designed to let you do this kind of thing (ie, run...

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Linux 3.9 Through Early Linux 3.13 Kernel Benchmarks

While I'm waiting for development activity on the Linux 3.13 kernel to settle down a bit more before delivering comprehensive benchmarks looking at the Linux 3.13 kernel performance changes across the various covered subsystems, up this morning are some early benchmarks of the Linux 3.13 Git kernel and benchmarking every...

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Btrfs Hands On: Exploring RAID and Redundancy

A look at the RAID capabilities of the btrfs Linux filesystem...

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