iMac crashes after upgrade to OS X Mavericks

Solution 1:

Spector is the cause. See the crash report you attached, the backtrace section:

Kernel Extensions in backtrace:
     com.apple.iokit.IOHIDFamily(2.0)[1185D338-98A5-345E-84F8-E59DF819A61B]@0xffffff7fa2481000->0xffffff7fa24f2fff
        dependency: com.apple.driver.AppleFDEKeyStore(28.30)[558B2575-5197-3C4C-BAD2-8CB465638FA8]@0xffffff7fa2476000
     com.apple.iokit.IOUSBHIDDriver(650.4.4)[B79A7E01-DD3F-3C1A-840A-879D262C69DE]@0xffffff7fa2506000->0xffffff7fa250efff
        dependency: com.apple.iokit.IOHIDFamily(2.0.0)[1185D338-98A5-345E-84F8-E59DF819A61B]@0xffffff7fa2481000
        dependency: com.apple.iokit.IOUSBFamily(650.4.4)[972D3024-AF9C-3E09-A9EC-D9AB2A559B38]@0xffffff7fa1e15000
     com.apple.driver.AppleUSBHIDKeyboard(170.15)[A652B17A-7312-32D1-A21E-F6B0B5D806C8]@0xffffff7fa3307000->0xffffff7fa330afff
        dependency: com.apple.iokit.IOHIDFamily(2.0.0)[1185D338-98A5-345E-84F8-E59DF819A61B]@0xffffff7fa2481000
        dependency: com.apple.driver.AppleHIDKeyboard(170.15)[0B7FA1C7-7326-3FB7-AF41-8905C145951E]@0xffffff7fa2f9a000
        dependency: com.apple.iokit.IOUSBHIDDriver(650.4.4)[B79A7E01-DD3F-3C1A-840A-879D262C69DE]@0xffffff7fa2506000
     com.spsys.driver.IOKitDriver(1.0.1)[00000000-0000-0000-0000-000000000000]@0xffffff7fa3e34000->0xffffff7fa3e37fff
        dependency: com.apple.iokit.IOHIDFamily(2.0.0)[1185D338-98A5-345E-84F8-E59DF819A61B]@0xffffff7fa2481000

System is crashing on this thread: com.spsys.driver.IOKitDriver, which is a spector's thread.

Asked Spector's support team for suggestions with our Spector admin guy, and they sent us a updated version and everything is fine now.

So you should work with your company's IT department to get the Spector updated.