spinlock

The spinlock tag on WindowsForum.com covers discussions about spinlock synchronization primitives, primarily in the context of Linux kernel development and security. A recent thread examines CVE-2025-37808, a Linux kernel crypto patch that replaced a sleeping mutex with a spinlock to prevent crashes in softirq context. This highlights spinlocks as a critical mechanism for protecting shared data in interrupt handlers and other atomic contexts where sleeping is not allowed. While the tag content currently focuses on Linux, spinlocks are a fundamental concept in operating systems, including Windows, for low-level concurrency control. The tag may also touch on related topics like kernel debugging, race conditions, and performance tuning.