x86 clock speed patch -- Possible bug?

aidas@ixsrs4.ix.netcom.com
Sat, 1 Feb 1997 17:49:31 -0600 (CST)


I have a P133. When I first started, the /proc/cpuinfo said that I had a
133MHz processor. About an hour later, I look at /proc/cpuinfo from my
user account, and get this:

processor : 0
cpu : 586
model : Pentium 75+
clock_speed : 132 MHz
vendor_id : GenuineIntel
stepping : 12
fdiv_bug : no
hlt_bug : no
fpu : yes
fpu_exception : yes
cpuid : yes
wp : yes
flags : fpu vme de pse tsc msr mce cx8
bogomips : 52.84

That happened several times. Then it reverted back to:

processor : 0
cpu : 586
model : Pentium 75+
clock_speed : 133 MHz
vendor_id : GenuineIntel
stepping : 12
fdiv_bug : no
hlt_bug : no
fpu : yes
fpu_exception : yes
cpuid : yes
wp : yes
flags : fpu vme de pse tsc msr mce cx8
bogomips : 52.84

It's continued to swing back and forth between 133 and 132 MHz as I write
this.

Is this a bug or some odd hardware quirk?

--
"Things fall apart; the centre cannot hold. Mere anarchy is loosed upon the
world; The blood-dimmed tide is loosed, and everywhere the ceremony of
innocence is drowned; The best lack all conviction, while the worst are full
of passionate intensity." -- "Second Coming" by Yeats.