August 08, 2012, 8:57 PM — Ever since I upgraded to Apple's "Mountain Lion" (Version 10.8) release of OS X I've been having a "small" problem with my iMac ... it keeps crashing. At least once per day, OS X gives up with a kernel panic and the System Diagnostic reports either "type 13=general protection" or "type 14=page fault." For what it's worth, the last two kernel extension events are for loading and unloading com.apple.driver.AppleUSBCDC4.1.21.
My iMac (which has to be my favorite computer ever) is a 27-inch, mid-2010 build with a 2.93GHz Intel Core i7 processor and 4GB of RAM. I've tried disconnecting all USB devices and I've disabled startup items but, so far, no joy. It crashes no matter what I do and, I see from online searching that I'm not alone in this.
VISUAL TOUR: What's new in Mountain Lion
Over on my Forbes blog I wrote about my disappointment following installing Mountain Lion and attracted the ire of the Apple fanboys, who apparently think that because they didn't have a problem it must be due to my stupidity. The reality of upgrades by any OS vendor is that things will go wrong for (hopefully) some small proportion of users, and Mountain Lion has a few problems.
Over on Macworld there's a guide for troubleshooting Mountain Lion but, alas, it doesn't address my problems. Even Apple's own support document regarding "kernel panics" (which is over a year old), only covers basic steps after which it recommends visiting an Apple retail store and making a reservation at the Genius Bar ... which would be great except for the time that would take.
Now, I admit I am not an expert in low-level OS X stuff, so picking apart the System Diagnostic Reports trying to identify the problem has been an annoying "learning experience," and revealed, so far, absolutely nothing. I've sent the System Diagnostic Reports to Apple's PR people but, to date, I've had no feedback, and friends with a lot more OS X experience have taken a look and have not been able to figure out what's going wrong.