Tried mainline too: ubuntu@oil-phelps:~$ ./clocktest Testing for clock jitter on 8 cpus PASSED: largest jitter seen was 0.000385
Testing clock direction for 5 minutes... FAILED: Iteration 0 delta: 3.654284 FAILED: Iteration 1 delta: 1.010557 FAILED: Iteration 2 delta: 0.734235 FAILED: Iteration 3 delta: 0.200061 FAILED: Iteration 4 delta: 0.229663 clock direction test: sleeptime 60 sec per iteration, failed iterations: 5 I wonder, however, if this is not signs of a failing CPU? cpuinfo says this is an Opteron 6320. I tried it on another system with an Opteron 6172 and it worked fine: ubuntu@bysen:~$ ./clocktest Testing for clock jitter on 24 cpus PASSED: largest jitter seen was 0.001858 Testing clock direction for 5 minutes... PASSED: Iteration 0 delta: 0.000109 PASSED: Iteration 1 delta: 0.000101 PASSED: Iteration 2 delta: 0.000100 PASSED: Iteration 3 delta: 0.000103 PASSED: Iteration 4 delta: 0.000101 clock direction test: sleeptime 60 sec per iteration, failed iterations: 0 Given that its limited to one system and regardless of kernel, I'm betting it's an actual hardware issue. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1563970 Title: Clock issues on AMD Opteron(tm) Processor 6320 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1563970/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
