Description of problem: Sometimes gdm fails to start on boot; see bug 870026 It appears that the underlying cause is that X is crashing. I created a /etc/X11/xorg.conf.d/serverflags.conf with contents below so that abrt could catch a coredump from X: Section "ServerFlags" Option "NoTrapSignals" EndSection Then I restarted gdm repeatedly with 'systemctl restart gdm.service' until X crashed (it took about 20 attempts). Version-Release number of selected component: xorg-x11-server-Xorg-1.13.0-5.fc18 Additional info: libreport version: 2.0.16 abrt_version: 2.0.16 backtrace_rating: 4 cmdline: /usr/bin/Xorg :1 -background none -verbose -auth /var/run/gdm/auth-for-gdm-YyvZOV/database -seat seat0 -nolisten tcp vt1 crash_function: list_is_empty kernel: 3.6.2-2.fc18.x86_64 truncated backtrace: :Thread no. 1 (5 frames) : #0 list_is_empty at intel_list.h:269 : #1 intel_mode_fini at intel_display.c:1774 : #2 I830FreeScreen at intel_driver.c:1077 : #3 xf86DeleteScreen at xf86Helper.c:237 : #4 InitOutput at xf86Init.c:606
Created attachment 633325 [details] File: core_backtrace
Created attachment 633326 [details] File: environ
Created attachment 633327 [details] File: limits
Created attachment 633328 [details] File: backtrace
Created attachment 633329 [details] File: smolt_data
Created attachment 633330 [details] File: cgroup
Created attachment 633331 [details] File: maps
Created attachment 633332 [details] File: dso_list
Created attachment 633333 [details] File: proc_pid_status
Created attachment 633334 [details] File: var_log_messages
Created attachment 633335 [details] File: open_fds
abrt captured the Xorg server version, but not the intel driver: Version-Release number of selected component (if applicable): xorg-x11-server-Xorg-1.13.0-5.fc18.x86_64 xorg-x11-drv-intel-2.20.8-1.fc18.x86_64
*** Bug 870026 has been marked as a duplicate of this bug. ***
Can you reproduce this with intel 2.20.12?
Yes and no. I grabbed the latest version in updates-testing -- xorg-x11-drv-intel-2.20.14-1.fc18.x86_64 -- and I restarted gdm in a loop(*) on vt2. gdm failed to start 2 times out of 50. However, Xorg did not crash on either of those failures. The Xorg process was running, but gdm failed to appear. In my /var/log/messages, I have this from the two failures: Nov 29 07:20:49 firefly gdm-binary[2293]: WARNING: GdmDisplay: display lasted 0.063704 seconds Nov 29 07:20:49 firefly gdm-binary[2293]: WARNING: GdmLocalDisplayFactory: maximum number of X display failures reached: check X server log for errors Nov 29 07:20:49 firefly gdm[2293]: gdm-binary[2293]: WARNING: GdmLocalDisplayFactory: maximum number of X display failures reached: check X server log for errors And again: Nov 29 07:31:04 firefly gdm[7350]: gdm-binary[7350]: WARNING: GdmLocalDisplayFactory: maximum number of X display failures reached: check X server log for errors Nov 29 07:31:04 firefly gdm-binary[7350]: WARNING: GdmDisplay: display lasted 0.051913 seconds Nov 29 07:31:04 firefly gdm-binary[7350]: WARNING: GdmLocalDisplayFactory: maximum number of X display failures reached: check X server log for errors Meanwhile, it appears that all of my Xorg.[1-5].log files are from the same time: Nov 29 07:31:04: # grep Log.file Xorg.*.log Xorg.0.log:[ 1550.590] (==) Log file: "/var/log/Xorg.0.log", Time: Thu Nov 29 07:35:14 2012 Xorg.1.log:[ 1300.300] (==) Log file: "/var/log/Xorg.1.log", Time: Thu Nov 29 07:31:04 2012 Xorg.2.log:[ 1300.412] (==) Log file: "/var/log/Xorg.2.log", Time: Thu Nov 29 07:31:04 2012 Xorg.3.log:[ 1300.465] (==) Log file: "/var/log/Xorg.3.log", Time: Thu Nov 29 07:31:04 2012 Xorg.4.log:[ 1300.518] (==) Log file: "/var/log/Xorg.4.log", Time: Thu Nov 29 07:31:04 2012 Xorg.5.log:[ 1300.571] (==) Log file: "/var/log/Xorg.5.log", Time: Thu Nov 29 07:31:04 2012 So it tried to start Xorg 5 times and all 5 failed? I'll attach all my logs. (*) gdm restart loop: #!/bin/sh while : ; do let i=i+1 echo $i systemctl restart gdm.service sleep 10 chvt 2 sleep 3 done
Created attachment 654292 [details] /var/log/messages
Created attachment 654293 [details] Xorg.1.log
Created attachment 654294 [details] Xorg.2.log
I won't bother attaching Xorg.{3,4,5}.log since they're identical to 1 and 2 except for the leading [timestamp] on each line.
Created attachment 654297 [details] Xorg.0.log For comparison, the Xorg.0.log from my current session which is working fine
I noticed a few other components had updates, so I updated to gdm-3.6.2-1.fc18.x86_64 xorg-x11-server-Xorg-1.13.0-7.fc18.x86_64 systemd-195-8.fc18.x86_64 and a few more I repeated my test and gdm and Xorg successfully restarted 50 times in a row. /me crosses fingers that this is resolved
I have this problem since upgrading to FC19. No problem with earlier versions (fc9 through fc17). Xorg logs and messages show that on boot it successfully starts X, but then when gdm tries to start it crashes X repeatedly, finally giving "GdmLocalDisplayFactory: maximum number of X display failures reached: check X server log for errors" It is not fatal: waiting a little and then starting gdm using "systemctl restart gdm.service" starts gdm with no problem. After that everything is stable. So it seems to be a timing issue. I'm using nvidia, but since it has never had a problem with earlier kernels I would guess that the nvidia module is not to blame. kernel-PAE-3.10.5-201.fc19.i686 gdm-3.8.3-2.fc19.i686 kmod-nvidia-3.10.5-201.fc19.i686.PAE-319.32-2.fc19.2.i686
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