Bug 683577

Summary: gdm: crash/race in on_settings_is_loaded_changed
Product: [Fedora] Fedora Reporter: Jason D. Clinton <me>
Component: gdmAssignee: jmccann
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: urgent Docs Contact:
Priority: unspecified    
Version: 15CC: cschalle, jmccann, rstrode, wwoods
Target Milestone: ---   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: gdm-2.91.93-2.fc15 Doc Type: Bug Fix
Doc Text:
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Clone Of: Environment:
Last Closed: 2011-03-11 06:09:33 UTC Type: ---
Regression: --- Mount Type: ---
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Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Flags
Log of failing GDM slave none

Description Jason D. Clinton 2011-03-09 18:33:58 UTC
Created attachment 483284 [details]
Log of failing GDM slave

Description of problem:
gdm blows up when responding to interface=org.gnome.DisplayManager.Session method=SavedLanguageNameRead signal during login. The attached trace appears to 
show a null pointer deference on the 'settings' variable:

gdm[1464]: #6  gdm_session_settings_is_loaded (settings=0x0) at gdm-session-settings.c:246
gdm[1464]: #7  0x00000000004086a8 in on_settings_is_loaded_changed (worker=0x144ac40) at gdm-session-worker.c:2114
gdm[1464]: #8  0x00000036c940e2ee in g_closure_invoke () from /lib64/libgobject-2.0.so.0

Version-Release number of selected component (if applicable): 2.91.93-1


How reproducible: about 70% of the time


Steps to Reproduce:
1. Boot system
2. Try to login
Seem especially reproducible if automatic login is enabled but occasionally happens on manual login, as well.

Usually, attempting to log in a second time results in success.


Actual results:
gdm slave crashes with attached backtrace and login process freezes with spinning wait cursor.

Comment 1 Ray Strode [halfline] 2011-03-09 20:59:15 UTC
Fix is here:

http://git.gnome.org/browse/gdm/commit/?id=fb47acb592e7e201e5ccedbfbae7d32d8cf254f2


building now.

Comment 2 Fedora Update System 2011-03-09 21:20:53 UTC
gdm-2.91.93-2.fc15 has been submitted as an update for Fedora 15.
https://admin.fedoraproject.org/updates/gdm-2.91.93-2.fc15

Comment 3 Jason D. Clinton 2011-03-09 21:46:22 UTC
Yep. That fixes it for me. Bumping the karma.

Comment 4 Jason D. Clinton 2011-03-09 21:48:32 UTC
Will this negatively affect the autologin for the GNOME 3 test day ISO's being spun tonight?

Comment 5 Fedora Update System 2011-03-11 06:09:28 UTC
gdm-2.91.93-2.fc15 has been pushed to the Fedora 15 stable repository.  If problems still persist, please make note of it in this bug report.