failed collecting data for unknown reason

[ipanema89]

Hello, I searched the archives but did not find anything useful. I do not want to reboot because then I lose my other sampling data.

I keep getting this:

Tue Nov 23 20:57:39 2004 (Run 2) The Sampling Collector is collecting samples based on the following event(s): MOB Loads Replays Retired, Stalled Cycles of Store Buffer Resources (Non-Standard), TC flushes, 3rd-Level Cache Reads Hit Modified.

Tue Nov 23 20:57:50 2004 (Run 2) Sampling data was successfully collected.

Tue Nov 23 20:57:52 2004 (Run 3) The Sampling Collector is calibrating its collection parameters for the following event(s): Speculative TC-delivered uops, Speculative Uops Retired, 3rd-Level Cache Reads Hit Exclusive.

Tue Nov 23 20:58:04 2004 (Run 3) The Sampling Collector is collecting samples based on the following event(s): Speculative TC-delivered uops, Speculative Uops Retired, 3rd-Level Cache Reads Hit Exclusive.

Tue Nov 23 20:58:05 2004 (Run 3) The Sampling Collector failed to start collecting data for an unknown reason.

Debugview shows this:

0269282849.91481647prBuf->pmcValues[12].pmcVal[0].pmcTotal.QuadPart is 0xc6dfd59
0269282949.91481817prBuf->pmcValues[4].pmcVal[1].pmcTotal.QuadPart is 0x2a18a2
0269283049.91482212&prBuf->pmcValues[4].pmcVal[0].pmcTotal.QuadPart is 0x86321C28
0269283149.91482370&prBuf->pmcValues[0].pmcVal[1].pmcTotal.QuadPart is 0x86321040
0269283249.91482746prBuf->pmcValues[4].pmcVal[0].pmcTotal.QuadPart is 0xbe28a
0269283349.91482926prBuf->pmcValues[0].pmcVal[1].pmcTotal.QuadPart is 0x56229
0269283449.91483343&prBuf->pmcValues[0].pmcVal[0].pmcTotal.QuadPart is 0x86321028
0269283549.91483947prBuf->pmcValues[0].pmcVal[0].pmcTotal.QuadPart is 0x47a2
0329606261.10194103TBS: Resuming sampling on processor 0
0329606461.10195518TBS: Resuming EBS on processor 0
0417624077.44520686&prBuf->pmcValues[4].pmcVal[1].pmcTotal.QuadPart is 0x86139C40
0417624177.44520910&prBuf->pmcValues[4].pmcVal[0].pmcTotal.QuadPart is 0x86139C28
0417624277.44521414prBuf->pmcValues[4].pmcVal[1].pmcTotal.QuadPart is 0x0
0417624377.44521989&prBuf->pmcValues[12].pmcVal[1].pmcTotal.QuadPart is 0x8613B440
0417624477.44522467prBuf->pmcValues[4].pmcVal[0].pmcTotal.QuadPart is 0x0
0417624577.44522572prBuf->pmcValues[12].pmcVal[1].pmcTotal.QuadPart is 0x0
0417624677.44523097&prBuf->pmcValues[12].pmcVal[0].pmcTotal.QuadPart is 0x8613B428
0417624777.44523219&prBuf->pmcValues[0].pmcVal[1].pmcTotal.QuadPart is 0x86139040
0417624877.44523595prBuf->pmcValues[12].pmcVal[0].pmcTotal.QuadPart is 0x0
0417624977.44523767prBuf->pmcValues[0].pmcVal[1].pmcTotal.QuadPart is 0x0
0417625077.44524211&prBuf->pmcValues[0].pmcVal[0].pmcTotal.QuadPart is 0x86139028
0417625177.44524768prBuf->pmcValues[0].pmcVal[0].pmcTotal.QuadPart is 0x0

[TimP]

Does your platform have a 3rd level cache? It looks like the failure is associated with one of the events you have chosen. I would consider it a bug, even if selecting an unsupported event produces a failure. I don't know that there is a way to use sampling results from a partly completed run.

[ipanema89]

Yes, the platform does have a 3rd level cache, and actually I have two other sampling runs where it succeeded this "run3", indeed all 18 runs went through fine. I didn't want to lose these two other runs, but I guess it's Windows and rebooting solves all problems and I will have to rerun the first two experiments.

Anything I can do "post mortem"/"post bug" to help Intel fix the bug before I reboot?

[ipanema89]

Ok reboot did not help. Now I get the following:

Thu Nov 25 13:12:17 2004 (Run 6) The Sampling Collector is calibrating its collection parameters for the following event(s): Branches Retired, Trace Cache Misses.

Thu Nov 25 13:12:37 2004 (Run 6) The Sampling Collector is collecting samples based on the following event(s): Branches Retired, Trace Cache Misses.

Thu Nov 25 13:12:58 2004 (Run 6) Sampling data was successfully collected.

Thu Nov 25 13:12:58 2004 (Run 7) The Sampling Collector is calibrating its collection parameters for the following event(s): Split Stores Retired (TI-E).

Thu Nov 25 13:13:19 2004 (Run 7) The Sampling Collector is collecting samples based on the following event(s): Split Stores Retired (TI-E).

Thu Nov 25 13:13:19 2004 (Run 7) The Sampling Collector failed to start collecting data for an unknown reason.

Help!