abrt version: 1.1.13
architecture: i686
Attached file: backtrace
cmdline: nautilus --sm-client-id 1070f84de646d2c750128882373990134800000053800040 --sm-client-state-file /home/nice/.config/session-state/nautilus-1288903070.state
component: nautilus
crash_function: *INT_cairo_set_source_surface
executable: /usr/bin/nautilus
kernel: 2.6.35.6-48.fc14.i686.PAE
package: nautilus-2.32.0-1.fc14
rating: 4
reason: Process /usr/bin/nautilus was killed by signal 11 (SIGSEGV)
release: Fedora release 14 (Laughlin)
time: 1288926963
uid: 500

comment
-----
Since upgrading to Fedora 14, after running for a few hours I start to get messages on the console
Maximum number of clients reachedMaximum number of clients reachedMaximum number of clients reachedMaximum number of clients reachedxwininfo:  unable to open display ':0.0'

I am unable to open any new windows then and lots of programs crash.

When things are still running correctly.
$ xlsclients  |wc -l
44
$ xwininfo -root -children | wc -l
208

A few mintues later

$ xwininfo -root -children | wc -l
Maximum number of clients reachedMaximum number of clients reachedMaximum number of clients reachedMaximum number of clients reachedxwininfo:  unable to open display ':0.0'
0
$ xlsclients  |wc -l
Maximum number of clients reachedxlsclients:  unable to open display ":0.0"
0
$ xterm
Maximum number of clients reachedMaximum number of clients reachedMaximum number of clients reachedMaximum number of clients reachedxterm Xt error: Can't open display: :0.0
$ 

I believe this crash was captured when about 6 file managers looked like they randomly started loading on the taskbar, pulsated for 30 seconds or so then started crashing and disappearing.