Shulou(Shulou.com)11/24 Report--

CTOnews.com February 21, Linux founder Linus Torvalds has released a stable Linux 6.2 kernel update with some new drivers, new features, and so on, as well as some hardware support and security improvements.

This is the first major kernel version update for Linux in 2023. The Linux 6.3 merge window officially opened today, and Linus said it had "more than 30 pull requests queued".

After more than two months of hard work, Linux kernel 6.2 finally introduced protective load balancing (PLB) of the IPv6 stack, supporting Intel's "asynchronous exit notification" mechanism, a new x86 FineIBT control flow integrity mechanism, and further improvements to the new Rust infrastructure.

In terms of hardware, Linux 6.2improves the stability of the Intel sharp graphics card (DG2 / Alchemist), which is really ready to use on boot. Intel's on-demand driver (On Demand driver) is now available for the fourth generation Xeon extensible "Sapphire Rapids" CPU, and initially supports the NVIDIA GeForce RTX 30 series "Ampere" graphics card. It can also use Nouveau open source code for graphics acceleration, and upstream support for the Apple M1 series.

Developer Asahi Linux pointed out that Linux-based operating systems are now supported by a wide range of Apple chips, including M1 Pro, M1 Max and M1 Ultra chips.

The new version also incorporates deep call tracking, which helps improve the performance of Intel's old PC in the Skylake era, and brings various file system driver enhancements, security improvements, and other optimizations.

Linux 6.2also comes with a new tool called RV (Runtime Verification) that controls the operation of the runtime verification subsystem, a new framework for processing computing acceleration devices, support for user-defined BPF objects, and a new sysctl knob to control how split lock detectors work when they are in "warning" mode on x86.

In addition, the Godson LoongArch architecture supports ftrace, hibernation, suspension, and stack protection, zram devices now provide better compression ratios, fscrypt mechanisms now support SM4 encryption algorithms, and memory naming capabilities are extended to allow shared anonymous memory areas to be named.

Other changes include new mount options for the NTFS3 file system, the ability to build a kernel that does not support NFSv2, support for the F2FS file system to write data to a file and truncate it into a single atomic operation, the ability to enable trace triggers at startup, and a new user space API to control the I / O memory management unit.

It is worth mentioning that the new version also adds a new TDX guest driver, which exposes the IOCTL interface to serve Intel TDX guest requests, improves support for NVMe devices, DCN support on ARM, new GC 11.x firmware version, GFX9 GFX preemption support, Ampere acceleration support, NVA3 backlight support, and Qualcomm SM6115 support.

Linux 6.2also added support for keys such as command keys on Apple's keyboard, basic support for Sony DualShock4 USB controllers, and open source support for MediaTek's MT6370 I2C Sub power management chip in OrangePi 4G-IoT.

Linux 6.2 is expected to be the default kernel for Ubuntu 23.04 and is expected to appear in Fedora 38 before the release of the successor v6.3 kernel in late April. The new kernel can be downloaded from kernel.org, and all of you in CTOnews.com can download and use it.

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