🐧Linux 6.17 Looks Like It Could Go Ahead And Make SMP Support Unconditional

「 This rework reduces kernel complexity for maintenance and ongoing development. But for anyone running in a uniprocessor world, making SMP unconditional does lead to some slight overhead. But again the number of uniprocessor systems in 2025+ running a single core processor and upgrading to new mainline Linux kernel releases is especially tiny 」

https://www.phoronix.com/news/Linux-6.17-Maybe-SMP-Uncond

#linux #kernel #opensource

Stumbled on a regression in the Linux Longterm 6.12.y #kernel when I upgraded some machines yesterday.

#IPv6 UDP packets were no longer being fragmented as though IPV6_DONTFRAG was set when it wasn't which broke a #Librecast test.

The regression wasn't in the mainline kernel so I spent a happy morning bisecting kernels until I found that a patch had been backported in 6.12.31 without backporting two previous related patches.

Reported to the stable maintainers with a test program. Now I wait.

🐧 Linux Kernel to Drop Support for Legacy i486 and Early 586 CPUs

「 Lastly, who gets hurt? Practically speaking, very few, or to put it bluntly, no one. The last commercial i486 rolled off production lines in 2007, and modern kernels rarely run on such vintage silicon outside hobbyist retro-computing circles 」

https://linuxiac.com/linux-kernel-to-drop-support-for-legacy-i486-and-early-586-cpus/

#linux #kernel #opensource