Comment 12 for bug 745737

It's a different issue. This will solve it -->

http://git.linaro.org/gitweb?p=people/andygreen/kernel-tilt.git;a=patch;h=1b0d6d49516d29bf2d723e2789e6f0fcd483f7b7

On OMAP, if you try to touch any peripheral unit that is not clocked, it'll blow a bus abort which shows up as one of these "imprecise external aborts". MUSB has recently taken on runtime_pm which means units are unclocked more often when out of use, and evidently it's not 100% yet.