Linux Kernel Daily: Power, Thermal and Timing Hardening for 7.4
Ten merge pulls for Linux 7.4 focus on power management, thermal control, ACPI, timers and interrupts. The pattern is reliability hardening and new hardware enablement, not new features.
Duration: PT2M6S
Episode overview
This episode is a short developer briefing from Linux Kernel Daily.
It explains recent repository work in plain language.
- Show: Linux Kernel Daily
- Published: 2026-10-22T06:01:09Z
- Audio duration: PT2M6S
Transcript excerpt
This excerpt keeps the crawler page concise. Listen to the episode or use the RSS feed for the full update.
Good morning, it's Thursday, October 22nd, 2026.
The lead story is consolidation ahead of 7.4: the kernel's power, heat, and time foundations are getting safer and more predictable.
First, thermal, power management and ACPI. The thermal pull adds support for new sensors, including the Exynos power-management thermal driver for Google GS101, Renesas and Qualcomm parts, plus separate thermal zones for Airoha network hardware. More important are the fixes: extended trip limits to stop interrupt…
Second, correctness for time and interrupts under faults. The timer core updates fix tearing of a central timekeeper value that could be read without sequence protection, and prevent day truncation in date conversion on 32-bit systems. The interrupt core skips message-signaled interrupt programming while a PCI…
Third, build speed and Rust maturity. The build system pull speeds up symbol processing, caches compiler checks in configuration, and reimplements a system map tool in C. The Rust pull updates a core memory-safety crate, adds rate-limited printing, and advances safe self-reference support in pin initialization.
What's next: expect testing focus on suspend and resume, thermal zones, and…
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