I'm seeing the same issue on DELL T3600 workstation running Windows 8. This happens when the computer wakes up from sleep mode. I see the DPC_WATCDOG_VIOLATION Error.
I also see in the system log:
The device driver for the Trusted Platform Module (TPM) encountered a non-recoverable error in the TPM hardware, which prevents TPM services (such as data encryption) from being used. For further help, please contact the computer manufacturer.
Bitlocker is enabled on the system.
I'm running the Client System Update software provided and am current with everything.