QWidgekbluetooth4 crashed with SIGSEGV in tItemV2::maximumSize()

[linjunpop]

Binary package hint: kdebluetooth

1) Description: Ubuntu karmic (development branch)
    Release: 9.10
2) kdebluetooth:
    Installed: 1:0.3-0ubuntu6
    Candidate: 1:0.3-0ubuntu6
    Version table:
    *** 1:0.3-0ubuntu6 0
        500 http://mirror.rootguide.org karmic/main Packages
        100 /var/lib/dpkg/status
3) it seems nothing wrong?

ProblemType: Crash
Architecture: i386
Date: Tue Sep 8 00:06:20 2009
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/bin/kbluetooth4
Package: kdebluetooth 1:0.3-0ubuntu6
ProcCmdline: kbluetooth4
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/usr/bin/zsh
ProcVersionSignature: Ubuntu 2.6.31-9.29-generic
SegvAnalysis:
 Segfault happened at: 0x627ed00 <_ZNK13QWidgetItemV211maximumSizeEv+32>: mov (%esi),%eax
 PC (0x0627ed00) ok
 source "(%esi)" (0x80000000) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: kdebluetooth
Stacktrace:
 #0 0x0627ed00 in QWidgetItemV2::maximumSize() const ()
    from /usr/lib/libQtGui.so.4
 #1 0x0050e40e in Solid::Control::BluetoothInterface::~BluetoothInterface() ()
    from /usr/lib/libsolidcontrol.so.4
 #2 0x08052c04 in _start ()
StacktraceTop:
 QWidgetItemV2::maximumSize() const ()
 Solid::Control::BluetoothInterface::~BluetoothInterface() ()
 _start ()
Title: kbluetooth4 crashed with SIGSEGV in QWidgetItemV2::maximumSize()
Uname: Linux 2.6.31-9-generic i686
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

StacktraceTop:QWidgetItemV2::maximumSize () from /usr/lib/libQtGui.so.4
~BluetoothInterface (this=0x92d58b0)
~KBlueTray (this=0xbffb50dc)
main (argc=1, argv=0xbffb52a4)