> > So attach gdb to the fvwm process and show a backtrace of what fvwm is > doing. > > -- Thomas Adam > >
I show the backtrace below (at the bottom). As I mentioned fvwm is just stuck in the main event loop. $sudo gdb ./fvwm/install/bin/fvwm 18419 GNU gdb (Ubuntu/Linaro 7.4-2012.04-0ubuntu2.1) 7.4-2012.04 Copyright (C) 2012 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html > This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-linux-gnu". For bug reporting instructions, please see: <http://bugs.launchpad.net/gdb-linaro/>... Reading symbols from /home/user/fvwm/install-cvs-2.6/bin/fvwm...done. Attaching to program: /home/user/fvwm/install-cvs-2.6/bin/fvwm, process 18419 Reading symbols from /usr/lib/x86_64-linux-gnu/libXft.so.2...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libXft.so.2 Reading symbols from /usr/lib/x86_64-linux-gnu/libXpm.so.4...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libXpm.so.4 Reading symbols from /usr/lib/libstroke.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libstroke.so.0 Reading symbols from /usr/lib/x86_64-linux-gnu/libSM.so.6...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libSM.so.6 Reading symbols from /usr/lib/x86_64-linux-gnu/libICE.so.6...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libICE.so.6 Reading symbols from /usr/lib/x86_64-linux-gnu/libXinerama.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libXinerama.so.1 Reading symbols from /usr/lib/x86_64-linux-gnu/libXext.so.6...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libXext.so.6 Reading symbols from /usr/lib/x86_64-linux-gnu/libX11.so.6...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libX11.so.6 Reading symbols from /lib/x86_64-linux-gnu/libm.so.6...(no debugging symbols found)...done. Loaded symbols for /lib/x86_64-linux-gnu/libm.so.6 Reading symbols from /usr/lib/x86_64-linux-gnu/libXrender.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libXrender.so.1 Reading symbols from /usr/lib/x86_64-linux-gnu/libXcursor.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libXcursor.so.1 Reading symbols from /usr/lib/libfribidi.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libfribidi.so.0 Reading symbols from /lib/x86_64-linux-gnu/libpng12.so.0...(no debugging symbols found)...done. Loaded symbols for /lib/x86_64-linux-gnu/libpng12.so.0 Reading symbols from /usr/lib/x86_64-linux-gnu/librsvg-2.so.2...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/librsvg-2.so.2 Reading symbols from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 Reading symbols from /usr/lib/x86_64-linux-gnu/libcairo.so.2...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libcairo.so.2 Reading symbols from /usr/lib/x86_64-linux-gnu/libfontconfig.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libfontconfig.so.1 Reading symbols from /lib/x86_64-linux-gnu/libc.so.6...(no debugging symbols found)...done. Loaded symbols for /lib/x86_64-linux-gnu/libc.so.6 Reading symbols from /usr/lib/x86_64-linux-gnu/libfreetype.so.6...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libfreetype.so.6 Reading symbols from /lib/x86_64-linux-gnu/libuuid.so.1...(no debugging symbols found)...done. Loaded symbols for /lib/x86_64-linux-gnu/libuuid.so.1 Reading symbols from /usr/lib/x86_64-linux-gnu/libxcb.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libxcb.so.1 Reading symbols from /lib/x86_64-linux-gnu/libdl.so.2...(no debugging symbols found)...done. Loaded symbols for /lib/x86_64-linux-gnu/libdl.so.2 Reading symbols from /usr/lib/x86_64-linux-gnu/libXfixes.so.3...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libXfixes.so.3 Reading symbols from /lib/x86_64-linux-gnu/libz.so.1...(no debugging symbols found)...done. Loaded symbols for /lib/x86_64-linux-gnu/libz.so.1 Reading symbols from /usr/lib/x86_64-linux-gnu/libgdk_pixbuf-2.0.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libgdk_pixbuf-2.0.so.0 Reading symbols from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 Reading symbols from /usr/lib/x86_64-linux-gnu/libpangocairo-1.0.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libpangocairo-1.0.so.0 Reading symbols from /usr/lib/x86_64-linux-gnu/libpango-1.0.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libpango-1.0.so.0 Reading symbols from /usr/lib/x86_64-linux-gnu/libcroco-0.6.so.3...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libcroco-0.6.so.3 Reading symbols from /lib/x86_64-linux-gnu/libglib-2.0.so.0...(no debugging symbols found)...done. Loaded symbols for /lib/x86_64-linux-gnu/libglib-2.0.so.0 Reading symbols from /usr/lib/x86_64-linux-gnu/libxml2.so.2...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libxml2.so.2 Reading symbols from /lib/x86_64-linux-gnu/libpthread.so.0...(no debugging symbols found)...done. [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Loaded symbols for /lib/x86_64-linux-gnu/libpthread.so.0 Reading symbols from /usr/lib/x86_64-linux-gnu/libffi.so.6...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libffi.so.6 Reading symbols from /usr/lib/x86_64-linux-gnu/libpixman-1.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libpixman-1.so.0 Reading symbols from /usr/lib/x86_64-linux-gnu/libxcb-shm.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libxcb-shm.so.0 Reading symbols from /usr/lib/x86_64-linux-gnu/libxcb-render.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libxcb-render.so.0 Reading symbols from /lib/x86_64-linux-gnu/libexpat.so.1...(no debugging symbols found)...done. Loaded symbols for /lib/x86_64-linux-gnu/libexpat.so.1 Reading symbols from /lib64/ld-linux-x86-64.so.2...(no debugging symbols found)...done. Loaded symbols for /lib64/ld-linux-x86-64.so.2 Reading symbols from /usr/lib/x86_64-linux-gnu/libXau.so.6...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libXau.so.6 Reading symbols from /usr/lib/x86_64-linux-gnu/libXdmcp.so.6...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libXdmcp.so.6 Reading symbols from /usr/lib/x86_64-linux-gnu/libgmodule-2.0.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libgmodule-2.0.so.0 Reading symbols from /lib/x86_64-linux-gnu/libselinux.so.1...(no debugging symbols found)...done. Loaded symbols for /lib/x86_64-linux-gnu/libselinux.so.1 Reading symbols from /lib/x86_64-linux-gnu/libresolv.so.2...(no debugging symbols found)...done. Loaded symbols for /lib/x86_64-linux-gnu/libresolv.so.2 Reading symbols from /usr/lib/x86_64-linux-gnu/libpangoft2-1.0.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libpangoft2-1.0.so.0 Reading symbols from /lib/x86_64-linux-gnu/libpcre.so.3...(no debugging symbols found)...done. Loaded symbols for /lib/x86_64-linux-gnu/libpcre.so.3 Reading symbols from /lib/x86_64-linux-gnu/librt.so.1...(no debugging symbols found)...done. Loaded symbols for /lib/x86_64-linux-gnu/librt.so.1 0x00007fe3b53409d7 in XCheckIfEvent () from /usr/lib/x86_64-linux-gnu/libX11.so.6 (gdb) backtrace #0 0x00007fe3b53409d7 in XCheckIfEvent () from /usr/lib/x86_64-linux-gnu/libX11.so.6 #1 0x000000000049dd2c in FCheckIfEvent (display=<optimized out>, event_return=0x7fffc74fc050, predicate=<optimized out>, arg=<optimized out>) at FEvent.c:308 #2 0x000000000042dfe4 in flush_property_notify (atom=<optimized out>, w=67108931) at events.c:4705 #3 0x000000000042e316 in HandlePropertyNotify (ea=0x7fffc74fc220) at events.c:3372 #4 0x000000000042c783 in dispatch_event (e=0x7fffc74fc260) at events.c:4178 #5 0x000000000042c838 in HandleEvents () at events.c:4222 #6 0x000000000040abd5 in main (argc=<optimized out>, argv=<optimized out>) at fvwm.c:2591
