My Mac Pro 5,1 sometimes freezes when I open the Notification Center, and it usually recovers by itself about 10 minutes later. I'd like to know why and how to fix it. When this happens, the notification center will be half open, as shown in the screenshot. This happens about once a week, seemingly at random. Symptoms include:
- Cmd-Tab does not work
- Expose / Mission Control Spaces does not work.
- Notification Center is frozen
- Dock will not appear
- I can't type text in any application
- I can't drag to reposition windows on the screen
- Cmd-Opt-Esc opens the Force Quit window, which functions properly
- Spotlight works properly
Here is the Console's "all messages" log for a few minutes before and after the crash. http://pastebin.com/NuGesUdy
UPDATE: I've discovered two related things. When this problem happens, Activity Monitor shows Dock using about 100% CPU. Meanwhile, fseventer shows that the .db files in ~/Library/Application Support/Dock/ are being accessed constantly. Also, I think I've tracked down the culprit to the MySQL installation part of XAMPP. It turns out I can unfreeze the system every time by turning off MySQL. I'd still like to know why, and how to fix this.