[Bug 1037357] Re: at-spi2-registryd crashed with SIGSEGV in register_client()

[Luke Yelavich]

** Description changed:

+ Impact:
+ Users occasionally experience crashes from at-spi2-registryd on their system, even though they may not be using any applications that use at-spi.
+ 
+ Regression potential:
+ Minimal to nonexistant. The proposed patch adds extra checks to make sure there is an error mesage.
+ 
  .
  
  ProblemType: Crash
  DistroRelease: Ubuntu 12.10
  Package: at-spi2-core 2.5.5-0ubuntu1
  ProcVersionSignature: Ubuntu 3.5.0-10.10-generic 3.5.1
  Uname: Linux 3.5.0-10-generic i686
  ApportVersion: 2.4-0ubuntu6
  Architecture: i386
  Date: Wed Aug 15 20:21:02 2012
  ExecutablePath: /usr/lib/at-spi2-core/at-spi2-registryd
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha i386 (20120803.1)
  ProcCmdline: /usr/lib/at-spi2-core/at-spi2-registryd --use-gnome-session
  ProcEnviron:
   SHELL=/bin/bash
   PATH=(custom, no user)
   LANG=en_US.UTF-8
  SegvAnalysis:
   Segfault happened at: 0xb77305bf <main+847>:	mov    0x8(%eax),%eax
   PC (0xb77305bf) ok
   source "0x8(%eax)" (0x00000008) not located in a known VMA region (needed readable region)!
   destination "%eax" ok
  SegvReason: reading NULL VMA
  Signal: 11
  SourcePackage: at-spi2-core
  Stacktrace:
   #0  0xb77305bf in main ()
   No symbol table info available.
  StacktraceTop: main ()
  Title: at-spi2-registryd crashed with SIGSEGV in main()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

** Also affects: at-spi2-core (Ubuntu Saucy)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1037357

Title:
  at-spi2-registryd crashed with SIGSEGV in register_client()

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