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Kernel trends: Outlook on 3.2

Directly following the release of 3.1, the first, usually two-week long merge window of the Linux kernel development cycle commences, during which the kernel developers incorporate the many changes for the next version of the kernel into the main development branch. Numerous changes have already been prepared for this first phase of the next development cycle.

Introduced by a Google developer and described in an article on, the "Proportional Rate Reduction Algorithm", for instance, promises to reduce the TCP stack's latencies by three to ten per cent. also offers some details on the Linux support for Texas Instruments' C6x processor architecture, and for Qualcomm's Hexagon, which could both be introduced in Linux 3.2.

The integration of the Ath6kl driver is relatively certain; this driver is based on the identically named staging driver but has recently been improved outside of the staging branch. The developers of the "Native KVM Tool", which was first presented back in spring, will probably make another attempt to integrate their Qemu-KVM alternative; the coming two weeks will tell whether Torvalds will once again decline their request or whether he will give preference to a narrow-gauge alternative.

As usual, the Kernel Log will summarise these and other developments in the Linux kernel field – including new point releases of the stable kernel series (3.1.y), which should, over the next few weeks, fix the odd bug or two overlooked by hackers and testers during 3.1 development. In addition, the Kernel Log in The H Open will, as usual, be reporting on the major changes integrated into the next kernel version in a "Coming in 3.2" mini series. A release of 3.2 in early December seems likely at this point in time. A detailed summary of the major changes in 3.2 will then be published on The H Open in a Kernel Log like this one.

Further background information about the developments in the Linux kernel area can be found using the search function at The H Open Source. Information about previous Linux kernel releases can be found in The H's Linux Kernel History. New editions of Kernel Logs are also mentioned on and Twitter by @kernellog2. The Kernel Log author also posts updates about various topics on and Twitter as @kernellogauthor.

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