Hi Michael, weird problem here, see debug files in the three debug reports (please triage together and possibly mark as duplicate): #312364 #315462 #282426 Cheers, Thomas root@ubuntu:/home/ubuntu# gdb update-manager | tee gdb-update-manager.txt "/usr/bin/update-manager": not in executable format: File format not recognized GNU gdb 6.8-debian Copyright (C) 2008 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later 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 "i486-linux-gnu"... (gdb) handle SIG33 pass nostop noprint Signal Stop Print Pass to program Description SIG33 No No Yes Real-time event 33 (gdb) set pagination 0 (gdb) set logging file gdb-update-manager.log (gdb) set logging on Copying output to gdb-update-manager.log. (gdb) attach 7192 Attaching to process 7192 Reading symbols from /usr/bin/python2.5...(no debugging symbols found)...done. Reading symbols from /lib/tls/i686/cmov/libpthread.so.0...(no debugging symbols found)...done. [Thread debugging using libthread_db enabled] [New Thread 0xb7d908c0 (LWP 7192)] Loaded symbols for /lib/tls/i686/cmov/libpthread.so.0 Reading symbols from /lib/tls/i686/cmov/libdl.so.2...(no debugging symbols found)...done. Loaded symbols for /lib/tls/i686/cmov/libdl.so.2 Reading symbols from /lib/tls/i686/cmov/libutil.so.1...(no debugging symbols found)...done. Loaded symbols for /lib/tls/i686/cmov/libutil.so.1 Reading symbols from /lib/tls/i686/cmov/libm.so.6...(no debugging symbols found)...done. Loaded symbols for /lib/tls/i686/cmov/libm.so.6 Reading symbols from /lib/tls/i686/cmov/libc.so.6...(no debugging symbols found)...done. Loaded symbols for /lib/tls/i686/cmov/libc.so.6 Reading symbols from /lib/ld-linux.so.2...(no debugging symbols found)...done. Loaded symbols for /lib/ld-linux.so.2 Reading symbols from /var/lib/python-support/python2.5/gtk-2.0/glib/_glib.so...(no debugging symbols found)...done. Loaded symbols for /var/lib/python-support/python2.5/gtk-2.0/glib/_glib.so Reading symbols from /usr/lib/pygobject/python2.5/libpyglib-2.0.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/pygobject/python2.5/libpyglib-2.0.so.0 Reading symbols from /usr/lib/libgobject-2.0.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libgobject-2.0.so.0 Reading symbols from /usr/lib/libgthread-2.0.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libgthread-2.0.so.0 Reading symbols from /lib/tls/i686/cmov/librt.so.1...(no debugging symbols found)...done. Loaded symbols for /lib/tls/i686/cmov/librt.so.1 Reading symbols from /usr/lib/libglib-2.0.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libglib-2.0.so.0 Reading symbols from /usr/lib/libffi.so.5...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libffi.so.5 Reading symbols from /lib/libpcre.so.3...(no debugging symbols found)...done. Loaded symbols for /lib/libpcre.so.3 Reading symbols from /usr/lib/python2.5/lib-dynload/strop.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib/python2.5/lib-dynload/strop.so Reading symbols from /usr/lib/python2.5/lib-dynload/_locale.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib/python2.5/lib-dynload/_locale.so Reading symbols from /usr/lib/python2.5/lib-dynload/operator.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib/python2.5/lib-dynload/operator.so Reading symbols from /usr/lib/python2.5/lib-dynload/_struct.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib/python2.5/lib-dynload/_struct.so Reading symbols from /var/lib/python-support/python2.5/gtk-2.0/gobject/_gobject.so...(no debugging symbols found)...done. Loaded symbols for /var/lib/python-support/python2.5/gtk-2.0/gobject/_gobject.so Reading symbols from /var/lib/python-support/python2.5/gtk-2.0/gtk/_gtk.so...(no debugging symbols found)...done. Loaded symbols for /var/lib/python-support/python2.5/gtk-2.0/gtk/_gtk.so Reading symbols from /usr/lib/libgtk-x11-2.0.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libgtk-x11-2.0.so.0 Reading symbols from /usr/lib/libgdk-x11-2.0.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libgdk-x11-2.0.so.0 Reading symbols from /usr/lib/libatk-1.0.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libatk-1.0.so.0 Reading symbols from /usr/lib/libpangoft2-1.0.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libpangoft2-1.0.so.0 Reading symbols from /usr/lib/libgdk_pixbuf-2.0.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libgdk_pixbuf-2.0.so.0 Reading symbols from /usr/lib/libpangocairo-1.0.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libpangocairo-1.0.so.0 Reading symbols from /usr/lib/libgio-2.0.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libgio-2.0.so.0 Reading symbols from /usr/lib/libcairo.so.2...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libcairo.so.2 Reading symbols from /usr/lib/libpango-1.0.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libpango-1.0.so.0 Reading symbols from /usr/lib/libfreetype.so.6...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libfreetype.so.6 Reading symbols from /usr/lib/libz.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libz.so.1 Reading symbols from /usr/lib/libfontconfig.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libfontconfig.so.1 Reading symbols from /usr/lib/libgmodule-2.0.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libgmodule-2.0.so.0 Reading symbols from /usr/lib/libX11.so.6...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libX11.so.6 Reading symbols from /usr/lib/libXcomposite.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libXcomposite.so.1 Reading symbols from /usr/lib/libXdamage.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libXdamage.so.1 Reading symbols from /usr/lib/libXfixes.so.3...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libXfixes.so.3 Reading symbols from /usr/lib/libXext.so.6...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libXext.so.6 Reading symbols from /usr/lib/libXrender.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libXrender.so.1 Reading symbols from /usr/lib/libXinerama.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libXinerama.so.1 Reading symbols from /usr/lib/libXi.so.6...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libXi.so.6 Reading symbols from /usr/lib/libXrandr.so.2...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libXrandr.so.2 Reading symbols from /usr/lib/libXcursor.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libXcursor.so.1 Reading symbols from /lib/libselinux.so.1...(no debugging symbols found)...done. Loaded symbols for /lib/libselinux.so.1 Reading symbols from /usr/lib/libpixman-1.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libpixman-1.so.0 Reading symbols from /usr/lib/libpng12.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libpng12.so.0 Reading symbols from /usr/lib/libxcb-render-util.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libxcb-render-util.so.0 Reading symbols from /usr/lib/libxcb-render.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libxcb-render.so.0 Reading symbols from /usr/lib/libxcb.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libxcb.so.1 Reading symbols from /usr/lib/libexpat.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libexpat.so.1 Reading symbols from /usr/lib/libxcb-xlib.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libxcb-xlib.so.0 Reading symbols from /usr/lib/libXau.so.6...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libXau.so.6 Reading symbols from /usr/lib/libXdmcp.so.6...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libXdmcp.so.6 Reading symbols from /usr/lib/python2.5/site-packages/cairo/_cairo.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib/python2.5/site-packages/cairo/_cairo.so Reading symbols from /var/lib/python-support/python2.5/gtk-2.0/gio/_gio.so...(no debugging symbols found)...done. Loaded symbols for /var/lib/python-support/python2.5/gtk-2.0/gio/_gio.so Reading symbols from /var/lib/python-support/python2.5/gtk-2.0/gio/unix.so...(no debugging symbols found)...done. Loaded symbols for /var/lib/python-support/python2.5/gtk-2.0/gio/unix.so Reading symbols from /var/lib/python-support/python2.5/gtk-2.0/pango.so...(no debugging symbols found)...done. Loaded symbols for /var/lib/python-support/python2.5/gtk-2.0/pango.so Reading symbols from /var/lib/python-support/python2.5/gtk-2.0/atk.so...(no debugging symbols found)...done. Loaded symbols for /var/lib/python-support/python2.5/gtk-2.0/atk.so Reading symbols from /var/lib/python-support/python2.5/gtk-2.0/pangocairo.so...(no debugging symbols found)...done. Loaded symbols for /var/lib/python-support/python2.5/gtk-2.0/pangocairo.so Reading symbols from /lib/tls/i686/cmov/libnss_compat.so.2...(no debugging symbols found)...done. Loaded symbols for /lib/tls/i686/cmov/libnss_compat.so.2 Reading symbols from /lib/tls/i686/cmov/libnsl.so.1...(no debugging symbols found)...done. Loaded symbols for /lib/tls/i686/cmov/libnsl.so.1 Reading symbols from /lib/tls/i686/cmov/libnss_nis.so.2...(no debugging symbols found)...done. Loaded symbols for /lib/tls/i686/cmov/libnss_nis.so.2 Reading symbols from /lib/tls/i686/cmov/libnss_files.so.2...(no debugging symbols found)...done. Loaded symbols for /lib/tls/i686/cmov/libnss_files.so.2 Reading symbols from /var/lib/python-support/python2.5/gtk-2.0/gtk/glade.so...(no debugging symbols found)...done. Loaded symbols for /var/lib/python-support/python2.5/gtk-2.0/gtk/glade.so Reading symbols from /usr/lib/libglade-2.0.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libglade-2.0.so.0 Reading symbols from /usr/lib/libxml2.so.2...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libxml2.so.2 Reading symbols from /var/lib/python-support/python2.5/gtk-2.0/gconf.so...(no debugging symbols found)...done. Loaded symbols for /var/lib/python-support/python2.5/gtk-2.0/gconf.so Reading symbols from /usr/lib/libgconf-2.so.4...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libgconf-2.so.4 Reading symbols from /usr/lib/libORBit-2.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libORBit-2.so.0 Reading symbols from /usr/lib/libdbus-glib-1.so.2...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libdbus-glib-1.so.2 Reading symbols from /lib/libdbus-1.so.3...(no debugging symbols found)...done. Loaded symbols for /lib/libdbus-1.so.3 Reading symbols from /usr/lib/python2.5/site-packages/apt_pkg.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib/python2.5/site-packages/apt_pkg.so Reading symbols from /usr/lib/libapt-pkg-libc6.8-6.so.4.6...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libapt-pkg-libc6.8-6.so.4.6 Reading symbols from /usr/lib/libstdc++.so.6...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libstdc++.so.6 Reading symbols from /lib/libgcc_s.so.1...(no debugging symbols found)...done. Loaded symbols for /lib/libgcc_s.so.1 Reading symbols from /usr/lib/python2.5/lib-dynload/math.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib/python2.5/lib-dynload/math.so Reading symbols from /usr/lib/python2.5/lib-dynload/binascii.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib/python2.5/lib-dynload/binascii.so Reading symbols from /usr/lib/python2.5/lib-dynload/_random.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib/python2.5/lib-dynload/_random.so Reading symbols from /usr/lib/python2.5/lib-dynload/fcntl.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib/python2.5/lib-dynload/fcntl.so Reading symbols from /usr/lib/python2.5/lib-dynload/select.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib/python2.5/lib-dynload/select.so Reading symbols from /usr/lib/python2.5/lib-dynload/time.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib/python2.5/lib-dynload/time.so Reading symbols from /usr/lib/python2.5/lib-dynload/cStringIO.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib/python2.5/lib-dynload/cStringIO.so Reading symbols from /usr/lib/python2.5/lib-dynload/_hashlib.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib/python2.5/lib-dynload/_hashlib.so Reading symbols from /usr/lib/i686/cmov/libssl.so.0.9.8...(no debugging symbols found)...done. Loaded symbols for /usr/lib/i686/cmov/libssl.so.0.9.8 Reading symbols from /usr/lib/i686/cmov/libcrypto.so.0.9.8...(no debugging symbols found)...done. Loaded symbols for /usr/lib/i686/cmov/libcrypto.so.0.9.8 Reading symbols from /usr/lib/python2.5/lib-dynload/_socket.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib/python2.5/lib-dynload/_socket.so Reading symbols from /usr/lib/python2.5/lib-dynload/_ssl.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib/python2.5/lib-dynload/_ssl.so Reading symbols from /usr/lib/python2.5/lib-dynload/_bisect.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib/python2.5/lib-dynload/_bisect.so Reading symbols from /var/lib/python-support/python2.5/_dbus_bindings.so...(no debugging symbols found)...done. Loaded symbols for /var/lib/python-support/python2.5/_dbus_bindings.so Reading symbols from /usr/lib/python2.5/lib-dynload/_weakref.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib/python2.5/lib-dynload/_weakref.so Reading symbols from /usr/lib/python2.5/lib-dynload/collections.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib/python2.5/lib-dynload/collections.so Reading symbols from /usr/lib/python2.5/lib-dynload/pyexpat.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib/python2.5/lib-dynload/pyexpat.so Reading symbols from /var/lib/python-support/python2.5/_dbus_glib_bindings.so...(no debugging symbols found)...done. Loaded symbols for /var/lib/python-support/python2.5/_dbus_glib_bindings.so Reading symbols from /usr/lib/python2.5/lib-dynload/grp.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib/python2.5/lib-dynload/grp.so Reading symbols from /usr/lib/gtk-2.0/2.10.0/engines/libmurrine.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib/gtk-2.0/2.10.0/engines/libmurrine.so Reading symbols from /usr/lib/pango/1.6.0/modules/pango-basic-fc.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib/pango/1.6.0/modules/pango-basic-fc.so Reading symbols from /usr/lib/gtk-2.0/2.10.0/loaders/svg_loader.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib/gtk-2.0/2.10.0/loaders/svg_loader.so Reading symbols from /usr/lib/librsvg-2.so.2...(no debugging symbols found)...done. Loaded symbols for /usr/lib/librsvg-2.so.2 Reading symbols from /usr/lib/libgsf-1.so.114...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libgsf-1.so.114 Reading symbols from /usr/lib/libcroco-0.6.so.3...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libcroco-0.6.so.3 Reading symbols from /lib/libbz2.so.1.0...(no debugging symbols found)...done. Loaded symbols for /lib/libbz2.so.1.0 Reading symbols from /usr/lib/gtk-2.0/2.10.0/loaders/libpixbufloader-png.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib/gtk-2.0/2.10.0/loaders/libpixbufloader-png.so Reading symbols from /lib/libnss_mdns4_minimal.so.2...(no debugging symbols found)...done. Loaded symbols for /lib/libnss_mdns4_minimal.so.2 Reading symbols from /lib/tls/i686/cmov/libnss_dns.so.2...(no debugging symbols found)...done. Loaded symbols for /lib/tls/i686/cmov/libnss_dns.so.2 Reading symbols from /lib/tls/i686/cmov/libresolv.so.2...(no debugging symbols found)...done. Loaded symbols for /lib/tls/i686/cmov/libresolv.so.2 (no debugging symbols found) 0xb7f60430 in __kernel_vsyscall () (gdb) continue Continuing. [New Thread 0xb6607b90 (LWP 7562)] [New Thread 0xb4d15b90 (LWP 7569)] [Thread 0xb6607b90 (LWP 7562) exited] [New Thread 0xb6607b90 (LWP 12285)] [Thread 0xb6607b90 (LWP 12285) exited] [New process 7192] Executing new program: /usr/bin/gksu (no debugging symbols found) warning: Cannot initialize thread debugging library: generic error warning: Cannot initialize thread debugging library: generic error (no debugging symbols found) [New process 7192] Program received signal SIGBUS, Bus error. 0xb8040baf in ?? () from /lib/ld-linux.so.2 (gdb) backtrace full #0 0xb8040baf in ?? () from /lib/ld-linux.so.2 No symbol table info available. #1 0xb8031752 in ?? () from /lib/ld-linux.so.2 No symbol table info available. #2 0xb8032aed in ?? () from /lib/ld-linux.so.2 No symbol table info available. #3 0xb8037df7 in ?? () from /lib/ld-linux.so.2 No symbol table info available. #4 0xb8038716 in ?? () from /lib/ld-linux.so.2 No symbol table info available. #5 0xb8036f1d in ?? () from /lib/ld-linux.so.2 No symbol table info available. #6 0xb802db3f in ?? () from /lib/ld-linux.so.2 No symbol table info available. #7 0xb803eea1 in ?? () from /lib/ld-linux.so.2 No symbol table info available. #8 0xb802bbfd in ?? () from /lib/ld-linux.so.2 No symbol table info available. #9 0xb802b7f7 in ?? () from /lib/ld-linux.so.2 No symbol table info available. (gdb) info registers eax 0x0 0 ecx 0x1cd 461 edx 0x734 1844 ebx 0xb8046ff4 -1207668748 esp 0xbf944500 0xbf944500 ebp 0xbf944508 0xbf944508 esi 0x734 1844 edi 0xb77db62c -1216498132 eip 0xb8040baf 0xb8040baf eflags 0x10202 [ IF RF ] cs 0x73 115 ss 0x7b 123 ds 0x7b 123 es 0x7b 123 fs 0x0 0 gs 0x0 0 (gdb) thread apply all backtrace Thread 6 (process 7192): #0 0xb8040baf in ?? () from /lib/ld-linux.so.2 #1 0xb8031752 in ?? () from /lib/ld-linux.so.2 #2 0xb8032aed in ?? () from /lib/ld-linux.so.2 #3 0xb8037df7 in ?? () from /lib/ld-linux.so.2 #4 0xb8038716 in ?? () from /lib/ld-linux.so.2 #5 0xb8036f1d in ?? () from /lib/ld-linux.so.2 #6 0xb802db3f in ?? () from /lib/ld-linux.so.2 #7 0xb803eea1 in ?? () from /lib/ld-linux.so.2 #8 0xb802bbfd in ?? () from /lib/ld-linux.so.2 #9 0xb802b7f7 in ?? () from /lib/ld-linux.so.2 /build/buildd/gdb-6.8/gdb/linux-nat.c:2467: internal-error: linux_nat_thread_alive: Assertion `is_lwp (ptid)' failed. A problem internal to GDB has been detected, further debugging may prove unreliable. Quit this debugging session? (y or n) n /build/buildd/gdb-6.8/gdb/linux-nat.c:2467: internal-error: linux_nat_thread_alive: Assertion `is_lwp (ptid)' failed. A problem internal to GDB has been detected, further debugging may prove unreliable. Create a core file of GDB? (y or n) y (gdb) backtrace full #0 0xb8040baf in ?? () from /lib/ld-linux.so.2 No symbol table info available. #1 0xb8031752 in ?? () from /lib/ld-linux.so.2 No symbol table info available. #2 0xb8032aed in ?? () from /lib/ld-linux.so.2 No symbol table info available. #3 0xb8037df7 in ?? () from /lib/ld-linux.so.2 No symbol table info available. #4 0xb8038716 in ?? () from /lib/ld-linux.so.2 No symbol table info available. #5 0xb8036f1d in ?? () from /lib/ld-linux.so.2 No symbol table info available. #6 0xb802db3f in ?? () from /lib/ld-linux.so.2 No symbol table info available. #7 0xb803eea1 in ?? () from /lib/ld-linux.so.2 No symbol table info available. #8 0xb802bbfd in ?? () from /lib/ld-linux.so.2 No symbol table info available. #9 0xb802b7f7 in ?? () from /lib/ld-linux.so.2 No symbol table info available. (gdb) info registers eax 0x0 0 ecx 0x1cd 461 edx 0x734 1844 ebx 0xb8046ff4 -1207668748 esp 0xbf944500 0xbf944500 ebp 0xbf944508 0xbf944508 esi 0x734 1844 edi 0xb77db62c -1216498132 eip 0xb8040baf 0xb8040baf eflags 0x10202 [ IF RF ] cs 0x73 115 ss 0x7b 123 ds 0x7b 123 es 0x7b 123 fs 0x0 0 gs 0x0 0 (gdb) thread apply all backtrace Thread 6 (process 7192): #0 0xb8040baf in ?? () from /lib/ld-linux.so.2 #1 0xb8031752 in ?? () from /lib/ld-linux.so.2 #2 0xb8032aed in ?? () from /lib/ld-linux.so.2 #3 0xb8037df7 in ?? () from /lib/ld-linux.so.2 #4 0xb8038716 in ?? () from /lib/ld-linux.so.2 #5 0xb8036f1d in ?? () from /lib/ld-linux.so.2 #6 0xb802db3f in ?? () from /lib/ld-linux.so.2 #7 0xb803eea1 in ?? () from /lib/ld-linux.so.2 #8 0xb802bbfd in ?? () from /lib/ld-linux.so.2 #9 0xb802b7f7 in ?? () from /lib/ld-linux.so.2 /build/buildd/gdb-6.8/gdb/linux-nat.c:2467: internal-error: linux_nat_thread_alive: Assertion `is_lwp (ptid)' failed. A problem internal to GDB has been detected, further debugging may prove unreliable. Quit this debugging session? (y or n) n /build/buildd/gdb-6.8/gdb/linux-nat.c:2467: internal-error: linux_nat_thread_alive: Assertion `is_lwp (ptid)' failed. A problem internal to GDB has been detected, further debugging may prove unreliable. Create a core file of GDB? (y or n) y (gdb) continue Continuing. Program terminated with signal SIGBUS, Bus error. The program no longer exists. (gdb) run -c -d Starting program: /usr/bin/gksu -c -d (no debugging symbols found) (no debugging symbols found) Program received signal SIGBUS, Bus error. 0xb7ff2baf in ?? () from /lib/ld-linux.so.2 (gdb) quit The program is running. Exit anyway? (y or n) n Not confirmed. (gdb) continue Continuing. Program terminated with signal SIGBUS, Bus error. The program no longer exists. (gdb) run Starting program: /usr/bin/gksu -c -d (no debugging symbols found) (no debugging symbols found) Program received signal SIGBUS, Bus error. 0xb7fbabaf in ?? () from /lib/ld-linux.so.2 (gdb) quit The program is running. Exit anyway? (y or n) y root@ubuntu:/home/ubuntu#