On Dienstag, 15. Juli 2008, Philipp Thomas wrote:

* Uwe Bonnes (bon@elektron.ikp.physik.tu-darmstadt.de) [20080715 15:00]:

...

Program received signal SIGSEGV, Segmentation fault. 0x00007f49aded107f in XNextEvent () from /usr/lib64/libX11.so.6 (gdb) bt #0 0x00007f49aded107f in XNextEvent () from /usr/lib64/libX11.so.6 #1 0x00007f49ae2088b9 in XtAppNextEvent () from /usr/lib64/libXt.so.6 #2 0x000000000043e177 in main () (gdb)

After a bit of debugging it looks like it could be a bug in libXt. I've opened a new bug in http://rudin.suse.de:8888/show_bug.cgi?id=409324 . You might want to add yourself in CC of that bug.

I've played with it, too. Seems there's a problem with one of this two -O2 optimisation flags: -fschedule-insns -fschedule-insns2 Added the longer description to the bugtracker: https://bugzilla.novell.com/show_bug.cgi?id=409324 I'm changing the optimisation option to -O1 for dinotrace. Regards Werner --------------------------------------------------------------------- To unsubscribe, e-mail: opensuse-buildservice+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-buildservice+help@opensuse.org

...

...

...

...

"Philipp" == Philipp Thomas writes:

Philipp> On Tue, 15 Jul 2008 21:44:20 +0200, Werner Hoch wrote: >> I've played with it, too. Seems there's a problem with one of this >> two -O2 optimisation flags: -fschedule-insns -fschedule-insns2 >> Added the longer description to the bugtracker: >> https://bugzilla.novell.com/show_bug.cgi?id=409324 >> >> I'm changing the optimisation option to -O1 for dinotrace. Philipp> Didn't work in my tests :( dinotrace compiled with -O1 still Philipp> segfaulted. Only -O0 i.e. no optimization at all got me an Philipp> executable that ran without problems. For me -O1 works too. -- Uwe Bonnes bon@elektron.ikp.physik.tu-darmstadt.de Institut fuer Kernphysik Schlossgartenstrasse 9 64289 Darmstadt --------- Tel. 06151 162516 -------- Fax. 06151 164321 ---------- --------------------------------------------------------------------- To unsubscribe, e-mail: opensuse-buildservice+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-buildservice+help@opensuse.org

* Marcus Meissner (meissner@suse.de) [20080716 10:47]:

Is this for building dinotrace or for building xorg-x11-libXt?

For building dinotrace. In this loop /* loop forever */ /*This code ~= XtAppMainLoop (global->appcontext);*/ while (1) { XEvent event; if (global->redraw_needed && !XtAppPending (global->appcontext) && (!global->redraw_manually || (global->redraw_needed & GRD_MANUAL))) { draw_perform(); } XtAppNextEvent (global->appcontext, &event); /*if (DTPRINT) { printf ("[Event %s] ", /events[event.type]);fflush(stdout); }*/ XtDispatchEvent (&event); } At some point in the loop the lower four bytes of the address of event passed to XtAppNextEvent are cleared and a later memcpy leads to a segfault. Philipp --------------------------------------------------------------------- To unsubscribe, e-mail: opensuse-buildservice+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-buildservice+help@opensuse.org