gnome-screensaver-dialog crashed with SIGSEGV in g_cclosure_marshal_VOID__VOID()

Bug #804195 reported by Jean-Baptiste Lallement on 2011-07-01
250
This bug affects 25 people
Affects Status Importance Assigned to Milestone
GNOME Screensaver
Expired
Critical
gnome-screensaver (Ubuntu)
Medium
Unassigned
Oneiric
Medium
Unassigned

Bug Description

On Oneiric up to date.

TEST CASE:
1. Click on Session Indicator and select 'Guest Session'
2. The screen locks and a password dialog is displayed.
3. Leave the password empty and click on 'Switch User'

Result:
This crash.

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: gnome-screensaver 3.0.0-2ubuntu2
ProcVersionSignature: Ubuntu 3.0-2.3-generic 3.0.0-rc4
Uname: Linux 3.0-2-generic i686
Architecture: i386
Date: Fri Jul 1 10:49:32 2011
EcryptfsInUse: Yes
ExecutablePath: /usr/lib/gnome-screensaver/gnome-screensaver-dialog
ProcCmdline: /usr/lib/gnome-screensaver/gnome-screensaver-dialog --status-message= --enable-switch
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, user)
 LANG=en_US.utf8
SegvAnalysis:
 Segfault happened at: 0x8050618: mov 0x8,%eax
 PC (0x08050618) ok
 source "0x8" (0x00000008) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: gnome-screensaver
StacktraceTop:
 ?? ()
 g_cclosure_marshal_VOID__VOID (closure=0x9406528, return_value=0x0, n_param_values=1, param_values=0x94485c0, invocation_hint=0xbf8c40d0, marshal_data=0x0) at /build/buildd/glib2.0-2.29.8/./gobject/gmarshal.c:79
 g_closure_invoke (closure=0x9406528, return_value=0x0, n_param_values=1, param_values=0x94485c0, invocation_hint=0xbf8c40d0) at /build/buildd/glib2.0-2.29.8/./gobject/gclosure.c:771
 signal_emit_unlocked_R (node=0x93af520, detail=0, instance=0x93c3b10, emission_return=0x0, instance_and_params=0x94485c0) at /build/buildd/glib2.0-2.29.8/./gobject/gsignal.c:3256
 g_signal_emit_valist (instance=0x93c3b10, signal_id=109, detail=0, var_args=0xbf8c427c "\366`\024") at /build/buildd/glib2.0-2.29.8/./gobject/gsignal.c:2987
Title: gnome-screensaver-dialog crashed with SIGSEGV in g_cclosure_marshal_VOID__VOID()
UpgradeStatus: Upgraded to oneiric on 2011-06-27 (3 days ago)
UserGroups: adm admin audio cdrom dialout dip floppy fuse libvirtd lpadmin netdev plugdev scanner sudo video

Jean-Baptiste Lallement (jibel) wrote :
Changed in gnome-screensaver (Ubuntu Oneiric):
importance: Undecided → High
assignee: nobody → Canonical Desktop Team (canonical-desktop-team)

StacktraceTop:
 do_user_switch (button=0x93c3b10, plug=0x93bc060) at gs-lock-plug.c:171
 switch_user_button_clicked (button=0x93c3b10, plug=0x93bc060) at gs-lock-plug.c:1456
 g_cclosure_marshal_VOID__VOID (closure=0x9406528, return_value=0x0, n_param_values=1, param_values=0x94485c0, invocation_hint=0xbf8c40d0, marshal_data=0x0) at /build/buildd/glib2.0-2.29.8/./gobject/gmarshal.c:79
 g_closure_invoke (closure=0x9406528, return_value=0x0, n_param_values=1, param_values=0x94485c0, invocation_hint=0xbf8c40d0) at /build/buildd/glib2.0-2.29.8/./gobject/gclosure.c:771
 signal_emit_unlocked_R (node=0x93af520, detail=0, instance=0x93c3b10, emission_return=0x0, instance_and_params=0x94485c0) at /build/buildd/glib2.0-2.29.8/./gobject/gsignal.c:3256

Changed in gnome-screensaver (Ubuntu):
importance: High → Medium
tags: removed: need-i386-retrace
Pedro Villavicencio (pedro) wrote :

Thank you for your bug report. This bug has been reported to the developers of the software. You can track it and make comments at:
https://bugzilla.gnome.org/show_bug.cgi?id=654165

Changed in gnome-screensaver (Ubuntu Oneiric):
status: New → Triaged
assignee: Canonical Desktop Team (canonical-desktop-team) → Chris Coulson (chrisccoulson)
visibility: private → public
visibility: public → private
Changed in gnome-screensaver:
importance: Unknown → Critical
status: Unknown → New
visibility: private → public
hcmeyer (hcmeyer) wrote :

Bug occurs starting up xfce desktop

Paul Sladen (sladen) wrote :

I hit this with a slightly different method, but also related to guest-session creation, logout and then switchback.

tags: added: sladen-11.10-upgrade
tags: added: testcase
Changed in gnome-screensaver (Ubuntu Oneiric):
assignee: Chris Coulson (chrisccoulson) → nobody
Changed in gnome-screensaver (Ubuntu):
assignee: Chris Coulson (chrisccoulson) → nobody
Changed in gnome-screensaver:
status: New → Expired
Rolf Leggewie (r0lf) wrote :

oneiric has seen the end of its life and is no longer receiving any updates. Marking the oneiric task for this ticket as "Won't Fix".

Changed in gnome-screensaver (Ubuntu Oneiric):
status: Triaged → Won't Fix
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