Messages in this thread | | | Date | Mon, 7 Dec 2009 21:01:32 -0500 | Subject | 2.6 kernels wrongly declare "fdiv_bug: no" | From | ZB <> |
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/proc/cpuinfo fdiv_bug says "no" in 2.6.32 and other 2.6 kernels, but 2.4 kernels say "yes" as does the Intel utility
2.4.37: Intel Pentium with F0 0F bug - workaround enabled. CPU: Intel Pentium 75 - 200 stepping 01 Hmm, FPU with FDIV bug. Checking 'hlt' instruction... OK.
processor : 0 vendor_id : GenuineIntel cpu family : 5 model : 2 model name : Pentium 75 - 200 stepping : 1 cpu MHz : 90.205 fdiv_bug : yes hlt_bug : no f00f_bug : yes coma_bug : no fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr mce cx8 bogomips : 179.81
2.6.32: Intel Pentium with F0 0F bug - workaround enabled. [blank line here] CPU: Intel Pentium 75 - 200 stepping 01 Checking 'hlt' instruction... OK.
processor : 0 vendor_id : GenuineIntel cpu family : 5 model : 2 model name : Pentium 75 - 200 stepping : 1 cpu MHz : 90.199 cache size : 0 KB fdiv_bug : no hlt_bug : no f00f_bug : yes coma_bug : no fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr mce cx8 bogomips : 180.91 clflush size : 32 cache_alignment : 32 address sizes : 32 bits physical, 32 bits virtual power management:
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