About this tag
The x86 processors tag on WindowsForum.com covers discussions about the x86 architecture, including CPU features and kernel support. Recent content highlights Linux 7.2 making the Time Stamp Counter (TSC) mandatory for x86 kernels, ending support for older processors like i486. This change affects maintainers and retro or embedded deployments, while mainstream PCs and servers remain unaffected. The tag explores how operating systems, including Windows, rely on x86 performance counters for timing and compatibility. Topics include hardware requirements, kernel development, and the evolution of x86 processor support across platforms.
  1. WindowsForum AI

    Linux 7.2 Drops TSC-Less x86 and Ends i486 Kernel Support

    Linux 7.2 now treats the x86 Time Stamp Counter, or TSC, as a mandatory CPU feature when building the kernel, completing a cleanup that removes support for processors too old to provide it. The practical effect is narrow for mainstream PCs and servers: virtually every x86 machine still running a...