4 CPU/FPU

Contents of this section

Intel/AMD/Cyrix 386SX/DX/SL/DXL/SLC, 486SX/DX/SL/SX2/DX2/DX4, Pentium. Basically all 386 or better processors will work. Linux has built-in FPU emulation if you don't have a math coprocessor.

Linux does not support SMP yet. Multi-processor systems will run Linux but only the first processor will be used. There's some work being done right now, check the Linux Project Map for details.

A few very early AMD 486DX's may hang in some special situations. All current chips should be okay and getting a chip swap for old CPU's should not be a problem.

ULSI Math*Co series has a bug in the FSAVE and FRSTOR instructions that causes problems with all protected mode operating systems. Some older IIT and Cyrix chips may also have this problem.

There are problems with TLB flushing in UMC U5S chips. Fixed in newer kernels.

Next Chapter, Previous Chapter

Table of contents of this chapter, General table of contents

Top of the document, Beginning of this Chapter