On Thursday 03 January 2008 23:28:49 Adam Treat wrote: > Hi, > > I've checked and this appears to be the case in both Qt 4.3.2 and Qt 4.4 > snapshot... > > ==7746== 4 bytes in 1 blocks are definitely lost in loss record 5 of 507 > ==7746== at 0x4022765: malloc (vg_replace_malloc.c:149) > ==7746== by 0x5CB16C4: qMalloc(unsigned) (qglobal.cpp:1964) > ==7746== by 0x5D7E43C: queuedConnectionTypes(QList<QByteArray> const&) > (qobject.cpp:67) > ==7746== by 0x5D82E5A: QObject::connect(QObject const*, char const*, > QObject const*, char const*, Qt::ConnectionType) (qobject.cpp:2567) > ==7746== by 0x80513D2: QObject::connect(QObject const*, char const*, > char const*, Qt::ConnectionType) const (qobject.h:291) > ==7746== by 0x4B38C6C: QWebNetworkManager::QWebNetworkManager() > (qwebnetworkinterface.cpp:432) > ==7746== by 0x4B38D5F: > QWebNetworkInterface::QWebNetworkInterface(QObject*) > (qwebnetworkinterface.cpp:906) > ==7746== by 0x4B38DE6: QWebNetworkInterface::defaultInterface() > (qwebnetworkinterface.cpp:890) > ==7746== by 0x4B38E36: QWebNetworkManager::self() > (qwebnetworkinterface.cpp:438) > ==7746== by 0x4AFAFD7: WebCore::ResourceHandle::start(WebCore::Frame*) > (ResourceHandleQt.cpp:134) > ==7746== by 0x49E9280: > WebCore::ResourceHandle::create(WebCore::ResourceRequest const&, > WebCore::ResourceHandleClient*, WebCore::Frame*, bool, bool, bool) > (ResourceHandle.cpp:53) > ==7746== by 0x4970831: > WebCore::MainResourceLoader::loadNow(WebCore::ResourceRequest&) > (MainResourceLoader.cpp:377) > > QObject is allocating memory for this queued connection that is apparently > never freed.
I don't believe that is a bug in Qt, I believe this leak is due to the fact that the QWebNetworkManager instance (s_manager) is never deleted, and as a result the connection is never broken up, so valgrind correctly claims a leak :) Simon
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