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GCC, LLVM, Copyleft, Companies, and Non-Profits

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Most people know I'm a fan of RMS' writing about Free Software and I agree with most (but not all) of his beliefs about software freedom politics and strategy. I was delighted to read RMS' post about LLVM on the GCC mailing list on Friday. It's clear and concise, and, as usual, I agree with most (but not all) of it, and I encourage people to read it. Meanwhile, upon reading comments on LWN on this post, I felt the need to add a few points to the discussion.

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today's leftovers

Proposed: A Tainted Performance State For The Linux Kernel

Similar to the kernel states of having a tainted kernel for using binary blob kernel modules or unsigned modules, a new tainting method has been proposed for warning the user about potentially adverse kernel performance. Dave Hansen of Intel has proposed a new "TAINT_PERFORMANCE" for the kernel that would proactively print a warning message about not using the kernel for any performance measurements. Dave explained in his RFC announcement, "I have more than once myself been the victim of an accidentally-enabled kernel configuration option being mistaken for a true performance problem. I'm sure I've also taken profiles or performance measurements and assumed they were real-world when really I was measuring the performance with an option that nobody turns on in production. A warning like this late in boot will help remind folks when these kinds of things are enabled." Read more

Scientific Linux 7.0 x86_64 BETA 3

Fermilab's intention is to continue the development and support of Scientific Linux and refine its focus as an operating system for scientific computing. Today we are announcing a beta release of Scientific Linux 7. We continue to develop a stable process for generating and distributing Scientific Linux, with the intent that Scientific Linux remains the same high quality operating system the community has come to expect. Please do not install Pre-Release software in your production environment. Read more

Ubuntu 14.10 (Utopic Unicorn) Now Features Linux Kernel 3.16.1

"The Utopic kernel has been rebased to the first v3.16.1 upstream stable kernel and uploaded to the archive, ie. linux-3.16.0-9.14. Please test and let us know your results," says Canonical's Joseph Salisbury, after the latest Ubuntu Kernel Team meeting. Read more