Ubuntu
gnome-settings-daemon package

[xsettings]: gnome-settings-daemon crashed with SIGSEGV in cond_setting_changed()

Bug #946295 reported by Jungle Boy on 2012-03-04

This bug affects 11 people

Affects		Status	Importance	Assigned to	Milestone
	gnome-settings-daemon (Ubuntu)	Fix Released	High	Unassigned
	Precise	Fix Released	High	Unassigned

Bug Description

Impact: The new version fixes some issues and update translation, a segfault issue is fixed as well
Development Fix: https://launchpad.net/ubuntu/+source/gnome-settings-daemon/3.4.2-0ubuntu2
Stable Fix: the update is an update of the upstream stable serie with a segfault fix included
Test Case: the segfault seems to be happening on logout, no specific test, just make sure things keep working
Regression Potential: the new version includes 6 commits, one which was already backported in the package and one being a translation fix, the other fixes should be trivial and safe

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: gnome-settings-daemon 3.3.90-0ubuntu4
ProcVersionSignature: Ubuntu 3.2.0-17.27-generic 3.2.6
Uname: Linux 3.2.0-17-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 1.94-0ubuntu1
Architecture: amd64
Date: Sun Mar 4 17:49:35 2012
ExecutablePath: /usr/lib/gnome-settings-daemon/gnome-settings-daemon
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120301)
ProcCmdline: /usr/lib/gnome-settings-daemon/gnome-settings-daemon
ProcEnviron:
SHELL=/bin/false
PATH=(custom, no user)
LANGUAGE=en_IN:en
LANG=en_IN
SegvAnalysis:
Segfault happened at: 0x7f23c612924c: mov 0x8(%rax),%rdi
PC (0x7f23c612924c) ok
source "0x8(%rax)" (0xaaaaaaaaaaaaaab2) not located in a known VMA region (needed readable region)!
destination "%rdi" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: gnome-settings-daemon
StacktraceTop:
?? () from /usr/lib/gnome-settings-daemon-3.0/libxsettings.so
g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
Title: [xsettings]: gnome-settings-daemon crashed with SIGSEGV in g_closure_invoke()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

See original description

Tags:

Related branches

lp://staging/ubuntu/quantal/gnome-settings-daemon

lp://staging/ubuntu/precise-proposed/gnome-settings-daemon

Revision history for this message

Jungle Boy (mowgli80) wrote on 2012-03-04:

Dependencies.txt Edit (5.3 KiB, text/plain; charset="utf-8")
Disassembly.txt Edit (778 bytes, text/plain; charset="utf-8")
ProcMaps.txt Edit (69.4 KiB, text/plain; charset="utf-8")
ProcStatus.txt Edit (784 bytes, text/plain; charset="utf-8")
Registers.txt Edit (729 bytes, text/plain; charset="utf-8")
Stacktrace.txt Edit (2.3 KiB, text/plain; charset="utf-8")
ThreadStacktrace.txt Edit (5.1 KiB, text/plain; charset="utf-8")

Revision history for this message

Apport retracing service (apport) wrote on 2012-03-05:

StacktraceTop:
cond_setting_changed (settings=0x1bbec50, key=0x1a61aa7 "toolkit-accessibility", gtk=0x1bb9d40) at gsd-xsettings-gtk.c:82
g_closure_invoke (closure=0x1b74370, return_value=0x0, n_param_values=2, param_values=0x7f23d40062a0, invocation_hint=<optimized out>) at /build/buildd/glib2.0-2.31.18/./gobject/gclosure.c:774
signal_emit_unlocked_R (node=<optimized out>, detail=1247, instance=<optimized out>, emission_return=0x0, instance_and_params=0x7f23d40062a0) at /build/buildd/glib2.0-2.31.18/./gobject/gsignal.c:3302
g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=0x7fff4ffacdc8) at /build/buildd/glib2.0-2.31.18/./gobject/gsignal.c:3033
g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>) at /build/buildd/glib2.0-2.31.18/./gobject/gsignal.c:3090

Revision history for this message

Apport retracing service (apport) wrote on 2012-03-05: Stacktrace.txt

Stacktrace.txt Edit (8.2 KiB, text/plain)

Revision history for this message

Apport retracing service (apport) wrote on 2012-03-05: ThreadStacktrace.txt

ThreadStacktrace.txt Edit (15.0 KiB, text/plain)

Changed in gnome-settings-daemon (Ubuntu):
importance:	Undecided → Medium
summary:	[xsettings]: gnome-settings-daemon crashed with SIGSEGV in - g_closure_invoke() + cond_setting_changed()
tags:	removed: need-amd64-retrace

Sebastien Bacher (seb128) on 2012-03-05

visibility:

private → public

Revision history for this message

Launchpad Janitor (janitor) wrote on 2012-03-05:

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

Changed in gnome-settings-daemon (Ubuntu):
status:	New → Confirmed

Sebastien Bacher (seb128) on 2012-04-02

Changed in gnome-settings-daemon (Ubuntu):
importance:	Medium → High

Revision history for this message

Robert Ancell (robert-ancell) wrote on 2012-05-04:

The stack trace seems to indicate this has happened when accessibility support has been enabled/disabled. I tried doing this on my box and it doesn't seem to cause any crash.

Revision history for this message

Robert Ancell (robert-ancell) wrote on 2012-05-04:

The test I did was System Settings > Universal Access > Screen Reader and toggled it on/off.

Sebastien Bacher (seb128) on 2012-05-23

Changed in gnome-settings-daemon (Ubuntu Precise):
status:	New → Fix Committed
importance:	Undecided → High

Revision history for this message

Launchpad Janitor (janitor) wrote on 2012-05-23:

This bug was fixed in the package gnome-settings-daemon - 3.4.2-0ubuntu2

---------------
gnome-settings-daemon (3.4.2-0ubuntu2) quantal; urgency=low

  * debian/patches/xsettings_signal_handling.patch:
    - upstream bugzilla patch, fix segfaults in the xsettings code which
      seem to happen at logout
      (lp: #946295, #948347, #963704)
-- Sebastien Bacher <email address hidden> Wed, 23 May 2012 21:50:41 +0200

Changed in gnome-settings-daemon (Ubuntu):
status:	Confirmed → Fix Released

Revision history for this message

Clint Byrum (clint-fewbar) wrote on 2012-05-29:

Hello! This bug is attached to an upload in the queue for precise-proposed. However, it does not contain the requisite fields for the SRU team to process the upload. Please add them per the process outlined here. To be more succinct, make sure the bug description lists these fields: "Impact, Dev Fix, Stable Fix, Regression Potential, Test case".

https://wiki.ubuntu.com/StableReleaseUpdates#Procedure

The upload will likely not be looked at by the SRU team until these fields are present.

Thank you!

Sebastien Bacher (seb128) on 2012-05-29

description:

updated

Revision history for this message

Clint Byrum (clint-fewbar) wrote on 2012-05-30: Please test proposed package

#10

Hello Jungle, or anyone else affected,

Accepted gnome-settings-daemon into precise-proposed. The package will build now and be available in a few hours. Please test and give feedback here. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you in advance!

tags:

added: verification-needed

Revision history for this message

Jungle Boy (mowgli80) wrote on 2012-06-03:

#11

Not sure how I came across this earlier. However, enabled proposed and followed steps suggested by Robert in #7 and its now working fine.

Sebastien Bacher (seb128) on 2012-06-05

tags:

added: verification-done
removed: verification-needed

Revision history for this message

Launchpad Janitor (janitor) wrote on 2012-06-19:

#12

This bug was fixed in the package gnome-settings-daemon - 3.4.2-0ubuntu0.1

---------------
gnome-settings-daemon (3.4.2-0ubuntu0.1) precise-proposed; urgency=low

  * New upstream version
  * debian/patches/git_keyring_environment.patch:
    - dropped, the fix is in the new version
  * debian/patches/xsettings_signal_handling.patch:
    - upstream bugzilla patch, fix segfaults in the xsettings code which
      seem to happen at logout (lp: #946295, #948347, #963704)
-- Sebastien Bacher <email address hidden> Wed, 23 May 2012 21:41:42 +0200

Changed in gnome-settings-daemon (Ubuntu Precise):
status:	Fix Committed → Fix Released

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[xsettings]: gnome-settings-daemon crashed with SIGSEGV in cond_setting_changed()

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gnome-settings-daemon package