[BeagleBoard] pm-2.6.34 hangs when cpufreq changed frequently

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Hi all,

I working with pm-2.6.34 based kernel on Beagleboard.  I am not
working with later kernels because I need cpufreq (which is currently
not supported due to upgradation).

My project requires cpufreq transitions at inter-task/intra-task
levels and when I made the changes for that., it seems to be working
fine for some time.  However, after a few seconds, the system freezes
and it seems like it is freezing when the frequency is changed.  I
wish I could point out which function is executing when this happens,
however, the behaviour seems to be changing when i instrument the code
with printks.  But, based on a few runs, it looks like usually the
system freezes when arch\arm\mach-omap2\Resource34xx.c::program_opp()
is invoked.

I understand sometime down the line when cpufreq is enabled again in
linux-omap-pm, I might not have this issue at all.  However, as I am
stuck with pm-2.6.34 for now, has anybody seen this kind of a problem
before?  and is there any way to avoid this (other than possibly
reducing the frequency of changes to cpufreq)?

-hari
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