On Tue, Aug 31, 2010 at 8:37 AM, Eero Tamminen <eero.tammi...@nokia.com> wrote: > Hi, > > ext Alexandre Fayolle wrote: >> >> On Tuesday 31 August 2010 09:07:01 Han wrote: >>> >>> Hi, >>> I am using Maemo 2.2 to develop some programs for Nokia 770. Things >>> run pretty well except sometime my program would crash for unknown >>> reason. Normally I start the program from x terminal, and it would >>> crash with only message "Killed". >>> >>> I am wondering if possible to get a stack trace when the program >>> crashes? so that I can find out where the crash happened in the code. >> >> This looks like the executable was killed by the OS. This can happen on >> Linux >> because of memory exhaustion (Out Of Memory killer: see e.g. http://linux- >> mm.org/OOM_Killer for more information on that). I'd advise monitoring >> memory consumption of your program. > > And Valgrinding it on x86 to see what kind of memory leaks and > other issues it has.
I tried Valgrind, and it did report memory leaks. However, most are from gtk/gdk libs and not obvious to me if something is wrong in my program. For example: ==19494== 2,356 (256 direct, 2,100 indirect) bytes in 1 blocks are definitely lost in loss record 5,620 of 5,662 ==19494== at 0x4024D12: realloc (vg_replace_malloc.c:476) ==19494== by 0x4747951: ??? (in /usr/lib/libfontconfig.so.1.3.0) ==19494== by 0x47483C7: ??? (in /usr/lib/libfontconfig.so.1.3.0) ==19494== by 0x4748A0B: ??? (in /usr/lib/libfontconfig.so.1.3.0) ==19494== by 0x4748A4F: ??? (in /usr/lib/libfontconfig.so.1.3.0) ==19494== by 0x473CE25: FcDefaultSubstitute (in /usr/lib/libfontconfig.so.1.3.0) ==19494== by 0x4553A27: ??? (in /usr/lib/libpangocairo-1.0.so.0.2600.0) ==19494== by 0x44E8627: ??? (in /usr/lib/libpangoft2-1.0.so.0.2600.0) ==19494== by 0x44EB954: ??? (in /usr/lib/libpangoft2-1.0.so.0.2600.0) ==19494== by 0x4680AF5: pango_font_map_load_fontset (in /usr/lib/libpango-1.0.so.0.2600.0) ==19494== by 0x467E614: ??? (in /usr/lib/libpango-1.0.so.0.2600.0) ==19494== by 0x467ECAE: pango_itemize_with_base_dir (in /usr/lib/libpango-1.0.so.0.2600.0) ==19494== by 0x4687908: ??? (in /usr/lib/libpango-1.0.so.0.2600.0) ==19494== by 0x4688F53: ??? (in /usr/lib/libpango-1.0.so.0.2600.0) ==19494== by 0x468AB9A: pango_layout_get_pixel_extents (in /usr/lib/libpango-1.0.so.0.2600.0) ==19494== by 0x40FDAD5: ??? (in /usr/lib/libgtk-x11-2.0.so.0.1800.3) ==19494== by 0x40F6758: gtk_cell_renderer_get_size (in /usr/lib/libgtk-x11-2.0.so.0.1800.3) ==19494== by 0x42B9CEA: gtk_tree_view_column_cell_get_size (in /usr/lib/libgtk-x11-2.0.so.0.1800.3) ==19494== by 0x42B1517: ??? (in /usr/lib/libgtk-x11-2.0.so.0.1800.3) ==19494== by 0x42B2C08: ??? (in /usr/lib/libgtk-x11-2.0.so.0.1800.3) ==19494== by 0x42B30DC: ??? (in /usr/lib/libgtk-x11-2.0.so.0.1800.3) ==19494== by 0x42B318D: ??? (in /usr/lib/libgtk-x11-2.0.so.0.1800.3) ==19494== by 0x4444F77: ??? (in /usr/lib/libgdk-x11-2.0.so.0.1800.3) ==19494== by 0x47E7100: ??? (in /lib/libglib-2.0.so.0.2200.3) ==19494== by 0x47E8E87: g_main_context_dispatch (in /lib/libglib-2.0.so.0.2200.3) ==19494== by 0x47EC72F: ??? (in /lib/libglib-2.0.so.0.2200.3) ==19494== by 0x47ECB9E: g_main_loop_run (in /lib/libglib-2.0.so.0.2200.3) ==19494== by 0x41A5418: gtk_main (in /usr/lib/libgtk-x11-2.0.so.0.1800.3) ==19494== by 0x804D262: br_ui_init ==19494== by 0x804C317: main Does this mean I should free something after gtk_main() returns ? Thanks Han > > >> You could also use strace to check what's happening in your program and >> what signal is received which causes termination. >> >> The OOM Killer uses SIGTERM, which your program can intercept if its >> memory consumption is not a bug. > > Kernel OOM killing doesn't use SIGTERM and isn't interceptable, > for a good reason. > > > - Eero > > _______________________________________________ > maemo-developers mailing list > maemo-developers@maemo.org > https://lists.maemo.org/mailman/listinfo/maemo-developers > _______________________________________________ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
