VNU Net: Intel passes buck on P4 compatibilityJan 03, 2001, 17:40 (7 Talkback[s])
(Other stories by Liesbeth Evers)
"Intel has admitted that not all Linux operating systems support its Pentium 4 chip. The company is blaming suppliers of some 'out-of-the-box' versions of the open source operating system which cannot identify the microprocessor."
"But according to the Linux 2.2.18 kernel notes, this is because Intel has broken the usual pattern in CPUID model numbering without informing Linux developers."
"Intel chose to ignore all precedents in model numbering via CPUID and report a family of '15'," stated the notes. "This sudden jump broke assumptions in the kernel tree without any warning."