Hi, 
I think the problem occurs when your selected event is not a "Running". While backtracing, the next "Running" will be 
regarded as corresponding, but it might be on the "wrong" CPU. In consequence, the entire detection goes amiss.

I'm uploading a sample kev on /home/harman_ftp/Generic/IDE/

Try selecting
Event, Time, CPU, Owner, Type, Data
158954, 861ms 661us, 2, procnto-smp-instr (1) Thread 17 (17), MsgReplyv Exit, ret_val 0

"Why running" will get you to
Event, Time, CPU, Owner, Type, Data
158948, 861ms 652us, 1, devb-mmcsd (6) Thread 9 (9), Running, pid 6 tid 9 priority 10 policy 2 partition 4 sched_flags 0


which is the most recent "Running" event, but not on the same CPU.

Thanks,
Daniel

>-----Ursprüngliche Nachricht-----
>Von: David Cummings [mailto:community-noreply@qnx.com] 
>Gesendet: Mittwoch, 7. Oktober 2009 14:52
>An: general-ide
>Betreff: Re: SystemProfiler View "Why Running" not working for 
>SMP traces
>
>Hi HP,
>
>I've run through some quick test cases of the Why Running view 
>using SMP traces and I am seeing reasonable results. The Why 
>Running view was implemented with support for SMP but perhaps 
>it is not correctly implemented for the scenarios in your 
>trace. Could you please provide some concrete examples of 
>where the Why Running view is not providing reasonable information?
>
>Thanks,
>David
>
>
>
>
>_______________________________________________
>
>General
>http://community.qnx.com/sf/go/post39497
>
> 
 
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