User-Agent: Mozilla/5.0 (X11; U; Linux i686; en; rv:1.8.1.8) Gecko/20061201 Epiphany/2.18 Firefox/2.0.0.8 (Ubuntu-feisty) Build Identifier: This was reported on Launchpad: https://bugs.launchpad.net/ubuntu/+source/xfdesktop/+bug/163419 by: https://bugs.launchpad.net/~raa-lkml There is only a backtrace, the original reporter doesn't know how and when it happened. I'm just forwarding this in case you can do something with only a backtrace. Reproducible: Couldn't Reproduce Backtrace: (gdb) bt #0 0xb747d763 in memmove () from /lib/tls/i686/cmov/libc.so.6 #1 0x08064858 in workspace_destroyed_cb (netk_screen=0x809ec50, workspace=0x80d6f50, user_data=0x809b6f0) at xfdesktop-window-icon-manager.c:312 #2 0xb7643119 in IA__g_cclosure_marshal_VOID__OBJECT (closure=0x80c1c80, return_value=0x0, n_param_values=2, param_values=0xbf95ac0c, invocation_hint=0xbf95ab1c, marshal_data=0x80647d0) at /build/buildd/glib2.0-2.14.1/gobject/gmarshal.c:636 #3 0xb7636772 in IA__g_closure_invoke (closure=0x80c1c80, return_value=0x0, n_param_values=2, param_values=0xbf95ac0c, invocation_hint=0xbf95ab1c) at /build/buildd/glib2.0-2.14.1/gobject/gclosure.c:490 #4 0xb7647323 in signal_emit_unlocked_R (node=0x80a82a8, detail=0, instance=0x809ec50, emission_return=0x0, instance_and_params=0xbf95ac0c) at /build/buildd/glib2.0-2.14.1/gobject/gsignal.c:2440 #5 0xb7648847 in IA__g_signal_emit_valist (instance=0x809ec50, signal_id=100, detail=0, var_args=0xbf95ae50 "\001") at /build/buildd/glib2.0-2.14.1/gobject/gsignal.c:2199 #6 0xb7648a09 in IA__g_signal_emit (instance=0x809ec50, signal_id=100, detail=0) at /build/buildd/glib2.0-2.14.1/gobject/gsignal.c:2243 #7 0xb7e98b89 in do_update_now (screen=0x809ec50) at netk-screen.c:1475 #8 0xb7e998b8 in update_idle (data=0x809ec50) at netk-screen.c:1412 #9 0xb759c551 in g_idle_dispatch (source=0x8161ce0, callback=0x1, user_data=0x809ec50) at /build/buildd/glib2.0-2.14.1/glib/gmain.c:4132 #10 0xb759e11c in IA__g_main_context_dispatch (context=0x80a1db8) at /build/buildd/glib2.0-2.14.1/glib/gmain.c:2061 #11 0xb75a155f in g_main_context_iterate (context=0x80a1db8, block=1, dispatch=1, self=0x807f048) at /build/buildd/glib2.0-2.14.1/glib/gmain.c:2694 #12 0xb75a1909 in IA__g_main_loop_run (loop=0x80cfaf0) at /build/buildd/glib2.0-2.14.1/glib/gmain.c:2898 #13 0xb7bb29e4 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0 #14 0x080561fd in main (argc=Cannot access memory at address 0x1 ) at main.c:394 (gdb)
Looks like it's crashing in libnetk (an old crappy fork of libwnck). I don't think this will ever get fixed; Xfce 4.6 will use libwnck directly.