CyanogenModXT720/android_device_motorola_sholest — comment on commit 6c702bf8e06795b1693d68f0dd929e62c39a2913
File:  line 0
By peshovec:

i personally had expirienced kernel related phone reboots when enabling..

may be it is just my phone hardware, as nokia n900 (which uses the same omap3430) users reports varying success with them.
for some it works great, for some it dosen't

have tried them without loading overclock module too (honestly not tried them on any cm7 based rom, but on eclairs and froyos)