nautilus crashed with SIGSEGV in app_chooser_online_get_default_ready_cb()

In an Oneiric i386 system in a 3D Unity session, nautilus 1:3.1.92-0ubuntu3 crashed. I was not performing any action in Nautilus when the crash occurred--I was instead watching a video in VLC. No Nautilus windows were even in the foreground. I think this is a duplicate of bug 795332, but I'll need to examine the trace in greater detail to be sure (or let Apport retracing service do it automatically).

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: nautilus 1:3.1.92-0ubuntu3
ProcVersionSignature: Ubuntu 3.0.0-11.18-generic 3.0.4
Uname: Linux 3.0.0-11-generic i686
ApportVersion: 1.23-0ubuntu1
Architecture: i386
Date: Mon Sep 26 00:53:23 2011
ExecutablePath: /usr/bin/nautilus
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
ProcCmdline: nautilus -n
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0xd2a872 <app_chooser_online_get_default_ready_cb+50>: mov %eax,0x24(%edi)
 PC (0x00d2a872) ok
 source "%eax" ok
 destination "0x24(%edi)" (0xaaaaaace) not located in a known VMA region (needed writable region)!
SegvReason: writing unknown VMA
Signal: 11
SourcePackage: nautilus
StacktraceTop:
 app_chooser_online_get_default_ready_cb (source=0x96794c8, res=0x94baaf0, user_data=0x8ff4130) at /build/buildd/gtk+3.0-3.1.92/./gtk/gtkappchooserdialog.c:167
 g_simple_async_result_complete (simple=0x94baaf0) at /build/buildd/glib2.0-2.29.92/./gio/gsimpleasyncresult.c:749
 pk_proxy_created_cb (source=0x9433a70, result=0x9758398, user_data=0x96794c8) at /build/buildd/gtk+3.0-3.1.92/./gtk/gtkappchooseronlinepk.c:187
 g_simple_async_result_complete (simple=0x9758398) at /build/buildd/glib2.0-2.29.92/./gio/gsimpleasyncresult.c:749
 complete_in_idle_cb (data=0x9758398) at /build/buildd/glib2.0-2.29.92/./gio/gsimpleasyncresult.c:761
Title: nautilus crashed with SIGSEGV in app_chooser_online_get_default_ready_cb()
UpgradeStatus: Upgraded to oneiric on 2011-06-18 (99 days ago)
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