Help required with a script

Frank Ch. Eigler fche@redhat.com
Mon Jan 12 19:09:00 GMT 2009


beginner966 <nitin966@gmail.com> writes:

> [...]  This is the script which I had written to gather information
> on migration of task to other CPU. I also wanted to report the
> appropriate errors, so I had used 4 kernel.statement probes. But the
> problem is that all 4 kernel.statement probes get executed
> simultaneously, which should not happen according to the original
> code. [...]

I suspect we're getting hurt by the statement placement heuristics
that allow a slight fuzz in line numbers if there is no exact match in
the debugging info.  Could you run again with --vp 02 to see what PC
values the various .statement probes end up mapping to?


- FChE



More information about the Systemtap mailing list