unity-greeter crashed with SIGSEGV in g_settings_backend_dispatch_signal()

Bug #984875 reported by Sergey "Shnatsel" Davidoff
10
This bug affects 1 person
Affects Status Importance Assigned to Milestone
unity-greeter (Ubuntu)
Confirmed
Medium
Unassigned

Bug Description

I'm using a Pantheon session, but it never happened until I switched to Unity2D for one login and then back to Pantheon.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: unity-greeter 0.2.7-0ubuntu2
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
Uname: Linux 3.2.0-23-generic x86_64
ApportVersion: 2.0.1-0ubuntu4
Architecture: amd64
Date: Wed Apr 18 14:23:59 2012
ExecutablePath: /usr/sbin/unity-greeter
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120303)
ProcCmdline: /usr/sbin/unity-greeter
ProcEnviron:
 PATH=(custom, no user)
 LANG=ru_RU.UTF-8
 SHELL=/bin/false
SegvAnalysis:
 Segfault happened at: 0x7fcd7338dbba <g_settings_backend_dispatch_signal+234>: mov (%rax,%rbx,1),%rax
 PC (0x7fcd7338dbba) ok
 source "(%rax,%rbx,1)" (0x00000008) not located in a known VMA region (needed readable region)!
 destination "%rax" ok
 Stack memory exhausted (SP below stack segment)
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: unity-greeter
StacktraceTop:
 g_settings_backend_dispatch_signal (backend=0x114c010, function_offset=8, name=0x11e11f0 "/com/canonical/unity-greeter/", data1=0x0, data1_copy=0x7fcd7338d6a0 <pointer_id>, data1_free=0x7fcd7338d6b0 <pointer_ignore>, data2=0x0) at /build/buildd/glib2.0-2.32.1/./gio/gsettingsbackend.c:340
 g_settings_backend_path_changed (backend=0x114c010, path=0x11e11f0 "/com/canonical/unity-greeter/", origin_tag=0x0) at /build/buildd/glib2.0-2.32.1/./gio/gsettingsbackend.c:496
 ?? () from /usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
 g_simple_async_result_complete (simple=0x7fcd6400e9e0) at /build/buildd/glib2.0-2.32.1/./gio/gsimpleasyncresult.c:767
 g_dbus_connection_call_done (source=<optimized out>, result=<optimized out>, user_data=0x11cf290) at /build/buildd/glib2.0-2.32.1/./gio/gdbusconnection.c:5289
Title: unity-greeter crashed with SIGSEGV in g_settings_backend_dispatch_signal()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

Revision history for this message
Sergey "Shnatsel" Davidoff (shnatsel) wrote :
Revision history for this message
Apport retracing service (apport) wrote :

StacktraceTop:
 g_settings_backend_dispatch_signal (backend=0x114c010, function_offset=8, name=0x11e11f0 "/com/canonical/unity-greeter/", data1=0x0, data1_copy=0x7fcd7338d6a0 <pointer_id>, data1_free=0x7fcd7338d6b0 <pointer_ignore>, data2=0x0) at /build/buildd/glib2.0-2.32.1/./gio/gsettingsbackend.c:340
 g_settings_backend_path_changed (backend=0x114c010, path=0x11e11f0 "/com/canonical/unity-greeter/", origin_tag=0x0) at /build/buildd/glib2.0-2.32.1/./gio/gsettingsbackend.c:496
 add_match_done (source=0x7fcd64008830, result=<optimized out>, user_data=0x127fd40) at dconfsettingsbackend.c:597
 g_simple_async_result_complete (simple=0x7fcd6400e9e0) at /build/buildd/glib2.0-2.32.1/./gio/gsimpleasyncresult.c:767
 g_dbus_connection_call_done (source=<optimized out>, result=<optimized out>, user_data=0x11cf290) at /build/buildd/glib2.0-2.32.1/./gio/gdbusconnection.c:5289

Revision history for this message
Apport retracing service (apport) wrote : Stacktrace.txt
Revision history for this message
Apport retracing service (apport) wrote : ThreadStacktrace.txt
Changed in unity-greeter (Ubuntu):
importance: Undecided → Medium
tags: removed: need-amd64-retrace
visibility: private → public
Revision history for this message
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in unity-greeter (Ubuntu):
status: New → Confirmed
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