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Title: Linux Kernel 6.12 Has Been Released

Link: https://linux.slashdot.org/story/24/11/18/014...

Slashdot unixbhaskar writes: Linus has released a fresh Linux kernel for
public consumption. Please give it a try and report any glitches to the
maintainers for improvement. Also, please do not forget to express your
appreciation to those tireless folks who did all the hard work for you. The
blog OMG Ubuntu calls it "one of the most biggest kernel releases for a
while," joking that it's a "really real-time kernel." The headline feature in
Linux 6.12 is mainline support for PREEMPT_RT. This patch set dramatically
improves the performance of real-time applications by making kernel processes
pre-emptible - effectively enabled proper real-time computing... Meanwhile,
Linus Torvalds himself contributes a new method for user-space address
masking designed to claw back some of the performance lost due to Spectre-v1
mitigations. You might have heard that kernel devs have been working to add
QR error codes to Linux's kernel panic BSOD screen (as a waterfall of error
text is often cut off and not easily copied for ad-hoc debugging). Well,
Linux 6.12 adds support for those during Direct Rendering Manager panics... A
slew of new RISC-V CPU ISA extensions are supported in Linux 6.12; hybrid CPU
scaling in the Intel P-State driver lands ahead of upcoming Intel Core Ultra
2000 chips; and AMD P-State driver improves AMD Boost and AMD Preferred Core
features. More coverage from the blog 9to5Linux highlights a new scheduler
called sched_ext, Clang support (including LTO) for nolibc, support for
NVIDIA's virtual command queue implementation for SMMUv3, and "an updated
cpuidle tool that now displays the residency value of cpuidle states for a
clearer and more detailed view of idle state information when using cpuidle-
info." Linux kernel 6.12 also introduces SWIG bindings for libcpupower to
make it easier for developers to write scripts that use and extend the
functionality of libcpupower, support for translating normalized error
addresses reported by an AMD memory controller into system physical addresses
using a UEFI mechanism called platform runtime mechanism (PRM), as well as
simplified loading of microcode patches on AMD Zen and newer CPUs by using
the family, model, and stepping encoded in the patch revision number...
Moreover, Linux 6.12 adds support for running as a protected guest on Android
as well as perf and support for a bunch of new interconnect PMUs. It also
adds the final conversions to the new Intel VFM CPU model matching macros,
rewrites the PCM buffer allocation handling and locking optimizations, and
improves the USB audio driver...

Read more of this story at Slashdot.

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