magnifier crashed with SIGSEGV in XQueryExtension()

[Andy Duffell]

Gnome-mag crashed when enabling magnifier in Orca preferences. Check tick box for "enable magnifier" on Magnifier tab, crashed immediately after.

Not sure if this is the same bug as #432015, as that bug does specifically describe what caused the crash.

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: gnome-mag 1:0.16.3-0ubuntu2
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
Date: Sun Jul 3 11:35:06 2011
ExecutablePath: /usr/bin/magnifier
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110302)
ProcCmdline: /usr/bin/magnifier --oaf-activate-iid=OAFIID:GNOME_Magnifier_Magnifier:0.9 --oaf-ior-fd=24
ProcEnviron:
 LANG=en_GB.UTF-8
 LANGUAGE=en_GB:en
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7f87fc8f9978 <XQueryExtension+40>: mov 0x968(%rdi),%rax
 PC (0x7f87fc8f9978) ok
 source "0x968(%rdi)" (0x00000968) not located in a known VMA region (needed readable region)!
 destination "%rax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: gnome-mag
StacktraceTop:
 XQueryExtension () from /usr/lib/x86_64-linux-gnu/libX11.so.6
 ?? ()
 ?? ()
 ?? ()
 ?? ()
Title: magnifier crashed with SIGSEGV in XQueryExtension()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dialout dip fax floppy fuse plugdev tape video

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make Ubuntu better. This particular crash has already been reported and is a duplicate of bug #432015, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.