Benchmark test cases "contacts" exit panic in some devices

Mobility lib sources: git://gitorious.org/qt-mobility/qt-mobility.git
Mobility test case "contacts" sources: git://scm.dev.troll.no/qtmobility/qtm-contacts.git
Mobility branch: origin/1.0
Mobility SHA: b3602839acf245d3f1e2b9f1141cd43624355b00

Qt lib sources: git://gitorious.org/qt/qt.git
Qt Branch: origin/4.6
Qt SHA: f11568e805def983af96b6e697094df1fb96af15

Used case: Mobility benchmark test cases:
..\tests\benchmarks\contacts

Qt Library configure parameters:
configure -platform win32-g++ -xplatform symbian-abld -nokia-developer -nomake demos -nomake example

Qt Compiling platform:
public S60 SDK 5.0 + make release-armv6

Mobility Library configure parameters:
configure

Mobility Compiling platform:
make release-armv5

We installed Qtlibs,Mobility lib and mobility benchmark application on 5800, E71, E72, N82 and N86.

Reproduce steps and result:
Launch the applications by directly clicking on the icons.
On N86 and E72, ran well.
On 5800, got panic "contacts:System error (-1)".
On E71 and N82, got panic :"Application closed:tst_bm_contacts E32USER-CBase 21".