gvfsd-smb crashed with SIGSEGV in g_main_context_dispatch()

[Thomas Jagoditsch]

Binary package hint: gvfs

while playing music with amarok my karmic desktop often unmounts the gvfsd mounted volume located at a samba share on my jaunty server.
all other shares (i usually have 2 additional open) seem to stay mounted.
amarok ofc stops to play music. this happens about 3-10 times a day.

ProblemType: Crash
Architecture: amd64
CrashCounter: 1
Date: Fri Sep 11 11:51:37 2009
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/lib/gvfs/gvfsd-smb
NonfreeKernelModules: nvidia
Package: gvfs-backends 1.3.6-0ubuntu1
ProcCmdline: /usr/lib/gvfs/gvfsd-smb --spawner :1.9 /org/gtk/gvfs/exec_spaw/0
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, user)
 LANG=de_AT.UTF-8
ProcVersionSignature: Ubuntu 2.6.31-10.32-generic
SegvAnalysis:
 Segfault happened at: 0x4110f4 <dbus_message_append_args@plt+33756>: mov 0x18(%rdi),%rax
 PC (0x004110f4) ok
 source "0x18(%rdi)" (0x00000018) not located in a known VMA region (needed readable region)!
 destination "%rax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: gvfs
StacktraceTop:
 ?? ()
 ?? () from /usr/lib/libgio-2.0.so.0
 ?? () from /usr/lib/libgio-2.0.so.0
 g_main_context_dispatch ()
 ?? () from /usr/lib/libglib-2.0.so.0
Title: gvfsd-smb crashed with SIGSEGV in g_main_context_dispatch()
Uname: Linux 2.6.31-10-generic x86_64
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

StacktraceTop:command_read_cb (source_object=0x15f7850,
async_ready_callback_wrapper (
read_async_cb (data=<value optimized out>,
IA__g_main_context_dispatch (context=0xcb91f0)
g_main_context_iterate (context=0xcb91f0,