[BUG] perf test 29 crashing

[Jiri Olsa]

hi,
I'm having test 29 crashing on latest Arnaldo's perf/core:

[jolsa@krava perf]$ ./perf test hist
15: Test matching and linking multiple hists                 : Ok
25: Test filtering hist entries                              : Ok
28: Test output sorting of hist entries                      : Ok
29: Test cumulation of child hist entries                    : FAILED!

I was hunting this, because I though it was caused by one
of my local changes, but then realized it's public bug ;-)

but can't find the reason so far..

thanks,
jirka