impropper overclovk symptoms ?

[epixoip]

Works fine here (Ubuntu 14.04 + Catalyst 14.9):

Code:

epixoip@token:~/md5stress-0.2$ ./md5stress64.bin 500
initializing random seed...
initializing opencl...
generating 1351680 new random passwords + hashes...
generating 1351680 new random passwords + hashes...
generating 1351680 new random passwords + hashes...
generating 1351680 new random passwords + hashes...
generating 1351680 new random passwords + hashes...
generating 1351680 new random passwords + hashes...
Iteration: 0 / 500 on GPU #1...
Iteration: 0 / 500 on GPU #2...
Iteration: 0 / 500 on GPU #3...
Iteration: 0 / 500 on GPU #4...
Iteration: 0 / 500 on GPU #5...
Iteration: 0 / 500 on GPU #6...
Iteration: 1 / 500 on GPU #1...
Iteration: 1 / 500 on GPU #2...
Iteration: 1 / 500 on GPU #3...
Iteration: 1 / 500 on GPU #4...
Iteration: 1 / 500 on GPU #5...
Iteration: 1 / 500 on GPU #6...
Iteration: 2 / 500 on GPU #1...
Iteration: 2 / 500 on GPU #2...
Iteration: 2 / 500 on GPU #3...
Iteration: 2 / 500 on GPU #4...
Iteration: 2 / 500 on GPU #5...
Iteration: 2 / 500 on GPU #6...
Iteration: 3 / 500 on GPU #1...
Iteration: 3 / 500 on GPU #2...
Iteration: 3 / 500 on GPU #3...
Iteration: 3 / 500 on GPU #4...
Iteration: 3 / 500 on GPU #5...
Iteration: 3 / 500 on GPU #6...
Iteration: 4 / 500 on GPU #1...
Iteration: 4 / 500 on GPU #2...
Iteration: 4 / 500 on GPU #3...
Iteration: 4 / 500 on GPU #4...
Iteration: 4 / 500 on GPU #5...
Iteration: 4 / 500 on GPU #6...
Iteration: 5 / 500 on GPU #1...
Iteration: 5 / 500 on GPU #2...
Iteration: 5 / 500 on GPU #3...
Iteration: 5 / 500 on GPU #4...
Iteration: 5 / 500 on GPU #5...
Iteration: 5 / 500 on GPU #6...
Iteration: 6 / 500 on GPU #1...
Iteration: 6 / 500 on GPU #2...
Iteration: 6 / 500 on GPU #3...
Iteration: 6 / 500 on GPU #4...
Iteration: 6 / 500 on GPU #5...
Iteration: 6 / 500 on GPU #6...
Iteration: 7 / 500 on GPU #1...
Iteration: 7 / 500 on GPU #2...
Iteration: 7 / 500 on GPU #3...
Iteration: 7 / 500 on GPU #4...
Iteration: 7 / 500 on GPU #5...
Iteration: 7 / 500 on GPU #6...