Messages in this thread | | | Date | Fri, 28 Nov 1997 18:21:15 -0500 (EST) | From | "Adam D. Bradley" <> | Subject | Re: Possible Pentium MMX CPU bug? |
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> Affected CPUs: only two CPUs were tested so far, a Stepping 7 P54C, and a > Stepping 3 MMX Pentium.
Data point: Pentium (classic) 166, kernel compiled -D586, never had "the Quake problem"...
peter> cat /proc/cpuinfo processor : 0 cpu : 586 model : Pentium 75+ vendor_id : GenuineIntel stepping : 12 fdiv_bug : no hlt_bug : no f00f_bug : yes fpu : yes fpu_exception : yes cpuid : yes wp : yes flags : fpu vme de pse tsc msr mce cx8 apic bogomips : 66.76 peter> uname -a Linux peter 2.0.32 #2 Thu Nov 20 17:36:59 EST 1997 i586 peter> ./bug testing bug ... no Pentium MMX 'missed write' bug in this CPU. peter>
> -- mingo
Curious: should your test program always catch the bug, or might it be a good idea for people who have seen the Quake problem before to maybe run the test 1000 times or so if it initially reports "no bug"?
Adam -- Things look so bad everywhere Adam D. Bradley artdodge@cs.bu.edu In this whole world what is fair Boston University Computer Science We walk blind and we try to see Ph.D. student and Linux hacker Falling behind in what could be ----> Bring me a Higher Love ----> <><
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