Error reproduced in 12.04

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https://bugs.launchpad.net/bugs/451841

Title:
  gvfsd-smb crashed with SIGSEGV in g_simple_async_result_complete()

Status in “gvfs” package in Ubuntu:
  Fix Released

Bug description:
  Binary package hint: gvfs

  This bug exists in Jaunty and the steps to reproduce are the same as
  for Karmic. Fortunately it is a tad more stable in Karmic but it gvfs-
  smb crashed eventually today. Reproduce as follows:

  0. Mount a remote smb share via Nautilus.
  1. Open Rhythmbox / Exaile / (maybe other software that can generate a lot of 
traffic over smb).
  2. Import a folder from the smb share into Rhythmbox / Exaile which contains 
a lot of music (the one tested here is over 200GB)
  3. Wait.
  4. Somewhere along the way the smb share will silently unmount and the import 
process will stop. The only trace of what happened will be visible via dmesg 
"gvfsd-smb[1873]: segfault at 14 ip 080583f5 sp bfbe2460 error 4 in 
gvfsd-smb[8048000+20000]" or Apport.

  This crash occurs on my setup somewhere between 3GB and 20GB music
  imported.

  I am sure that this bug is not specifically related with music files
  and importing in players but it is a generic bug in gvfs-smb which is
  triggered after some amount of data is transferred by it.

  ProblemType: Crash
  Architecture: i386
  Date: Wed Oct 14 19:58:35 2009
  DistroRelease: Ubuntu 9.10
  ExecutablePath: /usr/lib/gvfs/gvfsd-smb
  Package: gvfs-backends 1.4.0-0ubuntu4
  ProcCmdline: /usr/lib/gvfs/gvfsd-smb --spawner :1.10 /org/gtk/gvfs/exec_spaw/2
  ProcEnviron:
   SHELL=/bin/bash
   LANG=en_US.UTF-8
  ProcVersionSignature: Ubuntu 2.6.31-14.46-generic
  SegvAnalysis:
   Segfault happened at: 0x80583f5:     movzbl 0x14(%eax),%edx
   PC (0x080583f5) ok
   source "0x14(%eax)" (0x00000014) not located in a known VMA region (needed 
readable region)!
   destination "%edx" ok
  SegvReason: reading NULL VMA
  Signal: 11
  SourcePackage: gvfs
  StacktraceTop:
   ?? ()
   ?? ()
   ?? () from /usr/lib/libgio-2.0.so.0
   g_simple_async_result_complete ()
   ?? () from /usr/lib/libgio-2.0.so.0
  Title: gvfsd-smb crashed with SIGSEGV in g_simple_async_result_complete()
  Uname: Linux 2.6.31-14-generic i686
  UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

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