Re: Wrong Perf Backtraces

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On Sun, Mar 29, 2020 at 03:50:57PM +0200, Milian Wolff wrote:
> On Sonntag, 29. März 2020 14:39:33 CEST ahmadkhorrami wrote:
> > Thanks. I did both of your changes. Perhaps some outputs are revised.
> > But I still have repeated function calls and the script detects them.
> > Here is one of them when the sampling period is 1000 events:
> 
> <snip>
> 
> > Here, we have two consecutive "7f91788120b5
> > gtk_widget_propagate_state+0x195
> > (/usr/lib/x86_64-linux-gnu/libgtk-3.so.0.2200.30) gtkwidget.c:0" lines,
> > while "gtk_widget_propagate_state+0x195" is not recursive. It should
> > call "gtk_container_forall", which does not occur even after the second
> > (inner) call.
> 
> Potentially you are just lacking some debug symbols here for this GTK library. 
> note that "gtkwidget.c:0" is bogus already - the line numbers start with 1, so 

could we just skip those then? pass on all zero lined inlines
and not add/display them

jirka

> a line of 0 reported indicates a lack of (full) debug information for this 
> file.
> 
> Cheers
> 
> -- 
> Milian Wolff | milian.wolff@xxxxxxxx | Senior Software Engineer
> KDAB (Deutschland) GmbH, a KDAB Group company
> Tel: +49-30-521325470
> KDAB - The Qt, C++ and OpenGL Experts






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