Hyper-V ARM64 Fixes and SoC Updates
Linus Torvalds integrated multiple subsystem fixes including Hyper-V ARM64 driver improvements, device tree corrections across Qualcomm and Rockchip platforms, and filesystem stability patches.
Duration: PT1M47S
Transcript
Good morning. This is Linux Kernel Daily for January 22nd, 2026.
Linus Torvalds merged five pull requests yesterday focusing on stability and platform support improvements.
The most significant update addresses Hyper-V virtualization support. Wei Liu's pull request fixes critical issues in the MSHV driver, including ARM64 guest physical address intercept handling and huge page alignment problems. The changes also resolve type safety issues and correct panic notification behavior in Hyper-V environments.
A substantial SoC update from Arnd Bergmann targets device tree configurations across ARM64 platforms. The changes fix GPIO settings for PinePhone Pro buttons, correct register ranges for Rockchip RK3576 GPU, and resolve power domain issues on Qualcomm SC8280XP. The update includes a notable revert for Tegra210 interconnect properties that caused regressions in the 6.19 kernel.
David Sterba's Btrfs pull request addresses filesystem reliability concerns. The fixes protect superblock reads from external block size changes, prevent transaction starts in read-only modes, and add stricter device item validation during mount operations. These changes respond to issues identified by automated testing tools.
Additional merges include a minor perf tools fix for event parser error handling and a PREEMPT_RT compatibility fix for the slab allocator's kmalloc_nolock function.
What's next: These stability-focused changes suggest the 6.19 kernel is approaching release readiness. Watch for potential release candidate announcements as regression fixes continue to land.
That's your kernel update for today. I'm your host, and we'll see you tomorrow.