FC5 GConf crashing X on i810

[J. K. Cliburn]

I have a couple of old Dell Optiplex G110 PIII systems with Intel 810
onboard graphics that I use for testing purposes.  I installed FC5 a
couple of days ago, and now I've seen X crashes on both of them.  Both
are completely up to date with yum updates.  The systems remain viable
after the crash, that is, I can login with ssh from another host and
poke around, but X is dead.  Has anyone else seen this problem?

Linux petrel 2.6.15-1.2054_FC5 #1 Tue Mar 14 15:48:33 EST 2006 i686
i686 i386 GNU/Linux

Here's the relevant syslog and Xlog snippets.

First X crash host:gadwall

/var/log/messages
Mar 24 13:15:33 localhost gconfd (jcliburn-1927): Received signal 15,
shutting down cleanly
Mar 24 13:15:34 localhost gconfd (jcliburn-1927): Exiting
Mar 24 13:15:41 localhost gdm[1849]: gdm_slave_xioerror_handler: Fatal
X error - Restarting :0
Mar 24 13:15:48 localhost gdm[9796]: gdm_slave_xioerror_handler: Fatal
X error - Restarting :0
Mar 24 13:15:54 localhost gdm[9830]: gdm_slave_xioerror_handler: Fatal
X error - Restarting :0
Mar 24 13:15:54 localhost gdm[1819]: deal_with_x_crashes: Running the
XKeepsCrashing script
Mar 24 13:15:55 localhost gpm[1635]: *** info [client.c(137)]:
Mar 24 13:15:55 localhost gpm[1635]: Connecting at fd 6



Second X crash host:gadwall

Mar 25 06:44:03 localhost gconfd (jcliburn-12640): Received signal 15,
shutting down cleanly
Mar 25 06:44:03 localhost gconfd (jcliburn-12640): Exiting
Mar 25 06:44:04 localhost gconfd (jcliburn-12848): starting (version
2.14.0), pid 12848 user 'jcliburn'
Mar 25 06:44:04 localhost gconfd (jcliburn-12848): Resolved address
"xml:readonly:/etc/gconf/gconf.xml.mandatory" to a read-only
configuration source at position 0
Mar 25 06:44:04 localhost gconfd (jcliburn-12848): Resolved address
"xml:readwrite:/home/jcliburn/.gconf" to a writable configuration
source at position 1
Mar 25 06:44:04 localhost gconfd (jcliburn-12848): Resolved address
"xml:readonly:/etc/gconf/gconf.xml.defaults" to a read-only
configuration source at position 2
Mar 25 06:44:11 localhost gdm[1863]: gdm_slave_xioerror_handler: Fatal
X error - Restarting :0
Mar 25 06:44:17 localhost gdm[12893]: gdm_slave_xioerror_handler:
Fatal X error - Restarting :0
Mar 25 06:44:23 localhost gdm[12928]: gdm_slave_xioerror_handler:
Fatal X error - Restarting :0
Mar 25 06:44:23 localhost gdm[1839]: deal_with_x_crashes: Running the
XKeepsCrashing script
Mar 25 06:44:24 localhost gpm[1656]: *** info [client.c(137)]:
Mar 25 06:44:24 localhost gpm[1656]: Connecting at fd 6
Mar 25 06:44:35 localhost gconfd (jcliburn-12848): GConf server is not
in use, shutting down.
Mar 25 06:44:35 localhost gconfd (jcliburn-12848): Exiting

/var/log/Xorg.0.log
pgetbl_ctl: 0xb820001 pgetbl_err: 0x0
ipeir: 0 iphdr: 50c00004
LP ring tail: 538 head: 408 len: f001 start 3c0000
eir: 0 esr: 0 emr: 3d
instdone: ff3a instpm: 0
memmode: 4 instps: 810
hwstam: 9ac7 ier: 0 imr: 9ac7 iir: 0

Fatal server error:
Active ring not flushed




Third X crash host:petrel

/var/log/messages
Mar 25 07:08:44 localhost gconfd (jcliburn-1798): Received signal 15,
shutting down cleanly
Mar 25 07:08:45 localhost gconfd (jcliburn-1798): Exiting
Mar 25 07:09:20 localhost gconfd (jcliburn-2011): starting (version
2.14.0), pid 2011 user 'jcliburn'
Mar 25 07:09:20 localhost gconfd (jcliburn-2011): Resolved address
"xml:readonly:/etc/gconf/gconf.xml.mandatory" to a read-only
configuration source at position 0
Mar 25 07:09:20 localhost gconfd (jcliburn-2011): Resolved address
"xml:readwrite:/home/jcliburn/.gconf" to a writable configuration
source at position 1
Mar 25 07:09:20 localhost gconfd (jcliburn-2011): Resolved address
"xml:readonly:/etc/gconf/gconf.xml.defaults" to a read-only
configuration source at position
2
Mar 25 07:09:27 localhost gconfd (jcliburn-2011): Resolved address
"xml:readwrite:/home/jcliburn/.gconf" to a writable configuration
source at position 0
Mar 25 07:38:20 localhost gconfd (jcliburn-2011): GConf server is not
in use, shutting down.
Mar 25 07:38:21 localhost gconfd (jcliburn-2011): Exiting

/var/log/Xorg.0.log
Error in I810WaitLpRing(), now is 832578981, start is 832576980
pgetbl_ctl: 0xb820001 pgetbl_err: 0x0
ipeir: 0 iphdr: 50c00004
LP ring tail: 7848 head: 76f0 len: f001 start 3c0000
eir: 0 esr: 0 emr: 3d
instdone: ff3a instpm: 0
memmode: 4 instps: 810
hwstam: 9ac7 ier: 0 imr: 9ac7 iir: 0
space: 65184 wanted 65528

Fatal server error:
lockup

Error in I810WaitLpRing(), now is 832580990, start is 832578989
pgetbl_ctl: 0xb820001 pgetbl_err: 0x203000
ipeir: 0 iphdr: 50c00004
LP ring tail: 7850 head: 76f0 len: f001 start 3c0000
eir: 0 esr: 0 emr: 3d
instdone: ff3a instpm: 0
memmode: 4 instps: 810
hwstam: 9ac7 ier: 0 imr: 9ac7 iir: 0
space: 65176 wanted 65528

FatalError re-entered, aborting
lockup