Hi, I've just compiled Linux 2.4.23 for a Cyrix 6x86 P166+ processor, with the appropriate "Processor family" option "586/K5/5x86/6x86/6x86MX" (CONFIG_M586=y). It says it's for 586-compatible processors, possibly lacking the TSC register, though the kernel panic'd at boot, saying it needed a TSC register. The same kernel configuration, this time set for 386, booted successfully. $ cat /proc/cpuinfo processor : 0 vendor_id : CyrixInstead cpu family : 5 model : 2 model name : 6x86 2x Core/Bus Clock stepping : 7 fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : yes fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu cyrix_arr tm2 cid bogomips : 133.12 PS: I first tried to sent this to davej@suse.de, but his address seems not to be valid anymore (: user has moved to ). HTH, -- Pierre