OK, I have a suspect: omap2_mcspi

I noticed that after disconnecting from my Belkin wireless router load-applet reported quite a bit of activity, never really going beneath 8 or 9%. I fired up top and noticed that omap2_mcspi was consistently staying at the top of the processes. I noticed this same thing the other night and I woke up to a drained device. Not wanting to go through the same thing, I rebooted. After allowing a few minutes for the indexing processes to reach their idle state, load-applet is reporting 2 or 3% activity and omap2_mcspi is nowhere to be found in top. Coincidence or a bug?