[Xen-devel] cpufreq: weird bug in set_time_scale

["Langsdorf, Mark" <mark.langsdorf@xxxxxxx>]

On my test machine, in set_time_scale(),
the following code:
        ts->mul_frac = div_frac(MILLISECS(1000), tps32);
crashes with a division by zero error if 
tps32 == 1000000000d.  Unfortunately, tps32 is
often that value.

Does anyone know why this happens?  I've 
resolved it temporarily by checking for
tps32 == 1000000000 and changing the 
value slightly (101000010d works fine
on my test machine), but I'm not sure 
if that's the approved approach for Xen.

-Mark Langsdorf
Operating System Research Center
AMD



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