Qt Application crashing with IBM rational purify.

prem

Hi,
We have developed an GUI using QT. While running this application using IBM Rational Purify applications crashes.
Qt version 4.8.1.

Regards,
Prem

ChrisW67

What exactly do you expect us to do with this?

prem

I wanted to know why its crashing while running purify? is it issue with QT version ??? as anyone tested using purify ???? faced similar issues????

Regards,
Prem

dbzhang800

Hi,

I think that no one can help without any source code.

prem

hi,
I m getting memeory leaks in Qt Dll's.
following in UMC log.

[W] UMC: Uninitialized memory copy in QMutexData::QMutexData(RecursionMode::QMutex) {1 occurrence}
Copying 4 bytes from 0x049aaadc (4 bytes at 0x049aaadc uninitialized)
Address 0x049aaadc is 4 bytes into a 40 byte block at 0x049aaad8
Address 0x049aaadc points to a C++ new block in heap 0x049a0000
Thread ID: 0x15f0
Error location
QMutexData::QMutexData(RecursionMode::QMutex) [c:\QT\4.8.1\BIN\QTCORED4.DLL:95]
QMutexPrivate::QMutexPrivate(RecursionMode::QMutex) [c:\iwmake\build_vs2010_opensource_________________PADDING_________________\src\corelib\tmp\obj\debug_shared\qmutex_win.obj:52]
QMutex::QMutex(RecursionMode::QMutex) [c:\iwmake\build_vs2010_opensource_________________PADDING_________________\src\corelib\tmp\obj\debug_shared\qmutex.obj:126]
dynamic initializer for 'qt_adopted_thread_watcher_mutex'' [C:\QT\4.8.1\BIN\QTCORED4.DLL:159] CRT_INIT [C:\QT\4.8.1\BIN\QTCORED4.DLL:284] _DllMainCRTStartup [C:\QT\4.8.1\BIN\QTCORED4.DLL:506] DllMainCRTStartup [C:\QT\4.8.1\BIN\QTCORED4.DLL:476] Allocation location new(UINT) [C:\QT\4.8.1\BIN\QTCORED4.DLL] QMutex::QMutex(RecursionMode::QMutex) [c:\iwmake\build_vs2010_opensource_________________PADDING_________________\src\corelib\tmp\obj\debug_shared\qmutex.obj:126] dynamic initializer for 'qt_adopted_thread_watcher_mutex'' [C:\QT\4.8.1\BIN\QTCORED4.DLL:159]
CRT_INIT [C:\QT\4.8.1\BIN\QTCORED4.DLL:284]
_DllMainCRTStartup [C:\QT\4.8.1\BIN\QTCORED4.DLL:506]
DllMainCRTStartup [C:\QT\4.8.1\BIN\QTCORED4.DLL:476]
[W] UMC: Uninitialized memory copy in QMutexData::QMutexData(RecursionMode::QMutex) {1 occurrence}
Regards,
prem

dbzhang800

Hi,

Can you reproduce this problem using a very simply Qt application or using one of the examples provided by Qt?

prem

Hi,
I tried with one of the Qt example , i used configdialog.exe from dialog example.
Below is the UMC log for the same.

[I] Starting Purify'd C:\Documents and Settings\user\Desktop\dialogs\configdialog\debug\configdialog.exe at 7/12/2013 11:16:30
[I] Starting main
[O] Pure: Purify requires that a module from the Microsoft DIA SDK be installed in order to provide details about symbolic data in the code being analyzed.
[W] UMR: Uninitialized memory read in QString::QString(int,Initialization::Qt) {1 occurrence}
Reading 2 bytes from 0x0494bef0 (2 bytes at 0x0494bef0 uninitialized)
Address 0x0494bef0 is 16 bytes into a 652 byte block at 0x0494bee0
Address 0x0494bef0 points to a malloc'd block in heap 0x04940000
Thread ID: 0x1614
Error location
QString::QString(int,Initialization::Qt) [c:\iwmake\build_vs2010_opensource_________________PADDING_________________\src\corelib\tmp\obj\debug_shared\qstring.obj:1145]
QUtf16::convertToUnicode(char const*,int,ConverterState::QTextCodec ,DataEndianness) [c:\iwmake\build_vs2010_opensource_________________PADDING_________________\src\corelib\tmp\obj\debug_shared\qutfcodec.obj:331]
QString::fromUtf16(WORD const,int) [c:\iwmake\build_vs2010_opensource_________________PADDING_________________\src\corelib\tmp\obj\debug_shared\qstring.obj:4049]
QString::fromWCharArray(WORD const*,int) [c:\iwmake\build_vs2010_opensource_________________PADDING_________________\src\corelib\tmp\obj\debug_shared\qstring.obj:964]
WinMain [.\tmp\obj\debug_shared\qtmain_win.obj:93]
tmainCRTStartup [C:\Documents and Settings\pkbalakrishnan\Desktop\dialogs\configdialog\debug\configdialog.exe:547]
WinMainCRTStartup [C:\Documents and Settings\pkbalakrishnan\Desktop\dialogs\configdialog\debug\configdialog.exe:370]
Allocation location
malloc [C:\WINDOWS\SYSTEM32\MSVCR100D.DLL]
qMalloc(UINT) [c:\iwmake\build_vs2010_opensource_________________PADDING________________\src\corelib\tmp\obj\debug_shared\qmalloc.obj:55]
QString::QString(int,Initialization::Qt) [c:\iwmake\build_vs2010_opensource_________________PADDING_________________\src\corelib\tmp\obj\debug_shared\qstring.obj:1141]
QUtf16::convertToUnicode(char const*,int,ConverterState::QTextCodec ,DataEndianness) [c:\iwmake\build_vs2010_opensource_________________PADDING_________________\src\corelib\tmp\obj\debug_shared\qutfcodec.obj:331]
QString::fromUtf16(WORD const,int) [c:\iwmake\build_vs2010_opensource_________________PADDING_________________\src\corelib\tmp\obj\debug_shared\qstring.obj:4049]
QString::fromWCharArray(WORD const*,int) [c:\iwmake\build_vs2010_opensource_________________PADDING_________________\src\corelib\tmp\obj\debug_shared\qstring.obj:964]
WinMain [.\tmp\obj\debug_shared\qtmain_win.obj:93]
_tmainCRTStartup [C:\Documents and Settings\pkbalakrishnan\Desktop\dialogs\configdialog\debug\configdialog.exe:547]
WinMainCRTStartup [C:\Documents and Settings\pkbalakrishnan\Desktop\dialogs\configdialog\debug\configdialog.exe:370]
[I] Program terminated at 7/12/2013 11:16:35

Regards,
Prem