libreport version: 2.0.7
abrt_version:   2.0.6
backtrace_rating: 4
cmdline:        /usr/bin/gnome-shell
crash_function: strstr
executable:     /usr/bin/gnome-shell
kernel:         3.1.1-1.fc16.x86_64
pid:            1634
pwd:            /home/daniel
reason:         Process /usr/bin/gnome-shell was killed by signal 11 (SIGSEGV)
time:           Fri 25 Nov 2011 02:29:49 PM CET
uid:            500
username:       daniel

backtrace:      Text file, 69809 bytes
build_ids:      Text file, 6929 bytes
dso_list:       Text file, 8563 bytes
maps:           Text file, 155860 bytes

comment:
:I have this problem ever since F16.
:
:I open the "Activities" screen and start typing the first letters of an application. gnome-shell then crashes instantly. I can select the "Applications" tab though and launch stuff from there, but searching always kills my desktop.

environ:
:XDG_VTNR=1
:rvm_dump_environment_flag=0
:XDG_SESSION_ID=2
:rvm_bin_path=/home/daniel/.rvm/bin
:HOSTNAME=tamtam
:rvm_clang_flag=0
:IMSETTINGS_INTEGRATE_DESKTOP=yes
:GEM_HOME=/home/daniel/.rvm/gems/ruby-1.9.3-p0
:SHELL=/bin/bash
:TERM=xterm-color
:HISTSIZE=1000
:XDG_SESSION_COOKIE=742426e95d53d52e34af64650000001a-1321467035.200158-108979793
:IRBRC=/home/daniel/.rvm/rubies/ruby-1.9.3-p0/.irbrc
:MY_RUBY_HOME=/home/daniel/.rvm/rubies/ruby-1.9.3-p0
:rvm_verbose_flag=0
:IMSETTINGS_MODULE=none
:USER=daniel
:__array_start=0
:rvm_path=/home/daniel/.rvm
:rvm_debug_flag=0
:USERNAME=daniel
:escape_flag=1
:rvm_prefix=/home/daniel
:MAIL=/var/spool/mail/daniel
:PATH=/home/daniel/bin:/home/daniel/.rvm/gems/ruby-1.9.3-p0/bin:/home/daniel/.rvm/gems/ruby-1.9.3-p0@global/bin:/home/daniel/.rvm/rubies/ruby-1.9.3-p0/bin:/home/daniel/.rvm/bin:/home/daniel/bin:/usr/local/bin:/usr/bin:/bin:/usr/local/sbin:/usr/sbin:/sbin
:DESKTOP_SESSION=gnome
:QT_IM_MODULE=xim
:PWD=/home/daniel
:XMODIFIERS=@im=none
:EDITOR=vim
:LANG=en_US.utf8
:GDM_LANG=en_US.utf8
:_second=1
:GDMSESSION=gnome
:rvm_env_string=ruby-1.9.3-p0
:HISTCONTROL=ignoredups
:rvm_version=1.9.2
:HOME=/home/daniel
:XDG_SEAT=seat0
:SHLVL=1
:rvm_ruby_string=ruby-1.9.3-p0
:_first=0
:LOGNAME=daniel
:CVS_RSH=ssh
:GEM_PATH=/home/daniel/.rvm/gems/ruby-1.9.3-p0:/home/daniel/.rvm/gems/ruby-1.9.3-p0@global
:DBUS_SESSION_BUS_ADDRESS=unix:abstract=/tmp/dbus-8oI57wbMm7,guid=e9c59818d87ea79f46757de10000002d
:'LESSOPEN=||/usr/bin/lesspipe.sh %s'
:rvm_reload_flag=0
:WINDOWPATH=1
:XDG_RUNTIME_DIR=/run/user/daniel
:DISPLAY=:0
:RUBY_VERSION=ruby-1.9.3-p0
:XAUTHORITY=/var/run/gdm/auth-for-daniel-Sc5LK6/database
:_=/usr/bin/gnome-session
:GNOME_DESKTOP_SESSION_ID=this-is-deprecated
:SESSION_MANAGER=local/unix:@/tmp/.ICE-unix/1425,unix/unix:/tmp/.ICE-unix/1425
:GNOME_KEYRING_CONTROL=/tmp/keyring-KCx8kJ
:SSH_AUTH_SOCK=/tmp/keyring-KCx8kJ/ssh
:GPG_AGENT_INFO=/tmp/keyring-KCx8kJ/gpg:0:1
:DESKTOP_AUTOSTART_ID=1091faec5f64e50ba6132146703671830000000014250000

var_log_messages:
:Nov 20 14:13:03 tamtam dbus[1108]: [system] Rejected send message, 3 matched rules; type="error", sender=":1.73" (uid=500 pid=1634 comm="/usr/bin/gnome-shell ") interface="(unset)" member="(unset)" error name="org.freedesktop.DBus.Error.UnknownMethod" requested_reply="0" destination=":1.0" (uid=0 pid=1077 comm="/usr/sbin/bluetoothd -n ")
:Nov 20 14:13:03 tamtam dbus-daemon[1108]: dbus[1108]: [system] Rejected send message, 3 matched rules; type="error", sender=":1.73" (uid=500 pid=1634 comm="/usr/bin/gnome-shell ") interface="(unset)" member="(unset)" error name="org.freedesktop.DBus.Error.UnknownMethod" requested_reply="0" destination=":1.0" (uid=0 pid=1077 comm="/usr/sbin/bluetoothd -n ")
:Nov 25 14:29:49 tamtam kernel: [312993.448155] gnome-shell[1634]: segfault at 0 ip 00000038dd72e078 sp 00007fff82e19bf8 error 4 in libc-2.14.90.so (deleted)[38dd600000+1aa000]
:Nov 25 14:29:49 tamtam abrt[31648]: File '/usr/bin/gnome-shell' seems to be deleted
:Nov 25 14:29:55 tamtam abrt[31648]: Saved core dump of pid 1634 (/usr/bin/gnome-shell) to /var/spool/abrt/ccpp-2011-11-25-14:29:49-1634 (364351488 bytes)
:Nov 25 14:29:56 tamtam gnome-session[1425]: WARNING: Application 'gnome-shell.desktop' killed by signal