Greetz, Using C++, Qt 4.7, openSUSE 11.4, Valgrind, GCC
Actually this application runs very fine on Linux, but "crashes" on Windows if I "move the mouse wheel". I have NOT written any event for wheel handling in the code. So, I was thinking that I should dig in the memory leaks etc, and now I don't know what to make out of the following Valgrind's output. Valgrind shows tons of errors pointing to Qt's source files, but not to my source files! Please explain what to make out of this. The Makefile gets auto generated by qmake. It DOES contain the -Wall. Make does NOT show any warnings to me. The problem is that the functions pointed out by Valgrind are NO where in my code. I haven't used functions like - `createObject`, `setContent` etc. anywhere. They look like internal Qt functions. How to know whether problem is in my code or not? `valgrind --leak-check=full -v offline` results in: ********************************************************************* -6491-- Reading syms from /home/.../offline/offline (0x400000) --6491-- Reading syms from /lib64/ld-2.11.3.so (0x4000000) --6491-- Reading syms from /usr/lib64/valgrind/memcheck-amd64-linux (0x38000000) --6491-- object doesn't have a symbol table --6491-- object doesn't have a dynamic symbol table --6491-- Reading suppressions file: /usr/lib64/valgrind/default.supp --6491-- REDIR: 0x4015fc0 (strlen) redirected to 0x38042017 (???) --6491-- Reading syms from /usr/lib64/valgrind/vgpreload_core-amd64-linux.so (0x4a20000) --6491-- object doesn't have a symbol table --6491-- Reading syms from /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so (0x4c22000) --6491-- object doesn't have a symbol table ==6491== WARNING: new redirection conflicts with existing -- ignoring it --6491-- new: 0x04015fc0 (strlen ) R-> 0x04c26ee0 strlen --6491-- REDIR: 0x4015f10 (index) redirected to 0x4c26b40 (index) --6491-- REDIR: 0x4015f90 (strcmp) redirected to 0x4c274e0 (strcmp) --6491-- Reading syms from /usr/lib64/R/lib/libR.so (0x4e2c000) ..... --6491-- Reading syms from /home/anisha/qtsdk-2010.05/qt/lib/libQtGui.so.4.7.0 (0x5e43000) --6491-- Reading syms from /home/anisha/qtsdk-2010.05/qt/lib/libQtCore.so.4.7.0 (0x6bc0000) --6491-- Reading syms from /lib64/libpthread-2.11.3.so (0x70a3000) --6491-- Reading syms from /usr/lib64/libstdc++.so.6.0.14 (0x72c0000) --6491-- object doesn't have a symbol table --6491-- Reading syms from /lib64/libm-2.11.3.so (0x75c9000) --6491-- Reading syms from /lib64/libgcc_s.so.1 (0x7820000) --6491-- Considering /usr/lib/debug/.build-id/e6/eb8011838a065946e5808e036550844548379f.debug .. --6491-- .. build-id is valid --6491-- Reading syms from /lib64/libc-2.11.3.so (0x7a36000) --6491-- Reading syms from /lib64/libreadline.so.6.1 (0x7da3000) --6491-- object doesn't have a symbol table --6491-- Reading syms from /lib64/librt-2.11.3.so (0x7fea000) --6491-- Reading syms from /lib64/libdl-2.11.3.so (0x81f3000) --6491-- Reading syms from /usr/lib64/libgomp.so.1.0.0 (0x83f7000) ==6491== 5 errors in context 13 of 34: ==6491== Conditional jump or move depends on uninitialised value(s) ==6491== at 0x611629E: QHash<unsigned int, int>::findNode(unsigned int const&, unsigned int*) const (../include/QtCore/../../src/corelib/tools/qhash.h:884) ==6491== by 0x62E9AC6: QTextFormatCollection::indexForFormat(QTextFormat const&) (../include/QtCore/../../src/corelib/tools/qhash.h:865) ==6491== by 0x62E9E51: QTextFormatCollection::createObjectIndex(QTextFormat const&) (/var/tmp/qt-src/src/gui/text/qtextformat.cpp:3142) ==6491== by 0x62FF56E: QTextDocumentPrivate::createObject(QTextFormat const&, int) (/var/tmp/qt-src/src/gui/text/qtextdocument_p.cpp:1588) ==6491== by 0x62FFD57: QTextDocumentPrivate::rootFrame() const (/var/tmp/qt-src/src/gui/text/qtextdocument_p.cpp:1407) ==6491== by 0x63203B0: QTextDocumentLayout::doLayout(int, int, int) (/var/tmp/qt-src/src/gui/text/qtextdocumentlayout.cpp:2908) ==6491== by 0x632051C: QTextDocumentLayoutPrivate::ensureLayoutedByPosition(int) const (/var/tmp/qt-src/src/gui/text/qtextdocumentlayout.cpp:3076) ==6491== by 0x6320978: QTextDocumentLayoutPrivate::layoutStep() const (/var/tmp/qt-src/src/gui/text/qtextdocumentlayout.cpp:3082) ==6491== by 0x632123C: QTextDocumentLayout::documentChanged(int, int, int) (/var/tmp/qt-src/src/gui/text/qtextdocumentlayout.cpp:2874) ==6491== by 0x62EF7D3: QTextDocument::documentLayout() const (/var/tmp/qt-src/src/gui/text/qtextdocument.cpp:1070) ==6491== by 0x62C0D36: QTextControlPrivate::_q_documentLayoutChanged() (/var/tmp/qt-src/src/gui/text/qtextcontrol.cpp:624) ==6491== by 0x62C104E: QTextControlPrivate::setContent(Qt::TextFormat, QString const&, QTextDocument*) (/var/tmp/qt-src/src/gui/text/qtextcontrol.cpp:434) ==6491== 3 errors in context 10 of 34: ==6491== Use of uninitialised value of size 8 ==6491== at 0x6116276: QHash<unsigned int, int>::findNode(unsigned int const&, unsigned int*) const (../include/QtCore/../../src/corelib/tools/qhash.h:884) ==6491== by 0x62E9AC6: QTextFormatCollection::indexForFormat(QTextFormat const&) (../include/QtCore/../../src/corelib/tools/qhash.h:865) ==6491== by 0x62E9E51: QTextFormatCollection::createObjectIndex(QTextFormat const&) (/var/tmp/qt-src/src/gui/text/qtextformat.cpp:3142) ==6491== by 0x62FF56E: QTextDocumentPrivate::createObject(QTextFormat const&, int) (/var/tmp/qt-src/src/gui/text/qtextdocument_p.cpp:1588) ==6491== by 0x62FFD57: QTextDocumentPrivate::rootFrame() const (/var/tmp/qt-src/src/gui/text/qtextdocument_p.cpp:1407) ==6491== by 0x63203B0: QTextDocumentLayout::doLayout(int, int, int) (/var/tmp/qt-src/src/gui/text/qtextdocumentlayout.cpp:2908) ==6491== by 0x632051C: QTextDocumentLayoutPrivate::ensureLayoutedByPosition(int) const (/var/tmp/qt-src/src/gui/text/qtextdocumentlayout.cpp:3076) ==6491== by 0x6320978: QTextDocumentLayoutPrivate::layoutStep() const (/var/tmp/qt-src/src/gui/text/qtextdocumentlayout.cpp:3082) ==6491== by 0x632123C: QTextDocumentLayout::documentChanged(int, int, int) (/var/tmp/qt-src/src/gui/text/qtextdocumentlayout.cpp:2874) ==6491== by 0x62EF7D3: QTextDocument::documentLayout() const (/var/tmp/qt-src/src/gui/text/qtextdocument.cpp:1070) ==6491== by 0x62C0D36: QTextControlPrivate::_q_documentLayoutChanged() (/var/tmp/qt-src/src/gui/text/qtextcontrol.cpp:624) ==6491== by 0x62C104E: QTextControlPrivate::setContent(Qt::TextFormat, QString const&, Q ********************************************************************* -- Anisha Kaul ------------------------------------------------------------------------------ LogMeIn Rescue: Anywhere, Anytime Remote support for IT. Free Trial Remotely access PCs and mobile devices and provide instant support Improve your efficiency, and focus on delivering more value-add services Discover what IT Professionals Know. Rescue delivers http://p.sf.net/sfu/logmein_12329d2d _______________________________________________ Valgrind-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/valgrind-users
