Re: Wrong Perf Backtraces
Jiri Olsa <[email protected]>
| Newsgroups | org.kernel.vger.linux-trace-users |
|---|---|
| Message-ID | <20200329192010.GA2361248@krava> |
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 | [email protected] | Senior Software Engineer > KDAB (Deutschland) GmbH, a KDAB Group company > Tel: +49-30-521325470 > KDAB - The Qt, C++ and OpenGL Experts