Using r60414, QtTestBrowser crashes on exit if the platform plugin is used in a page that contains a <select> element. Here is gdb stack trace: #1 0x005934d1 in *__GI_raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64 #2 0x00596932 in *__GI_abort () at abort.c:92 #3 0x005c9ee5 in __libc_message (do_abort=2, fmt=0x68d578 "*** glibc detected *** %s: %s: 0x%s ***\n") at ../sysdeps/unix/sysv/linux/libc_fatal.c:189 #4 0x005d3ff1 in malloc_printerr (action=<value optimized out>, str=0x6 <Address 0x6 out of bounds>, ptr=0x86dda50) at malloc.c:6217 #5 0x005d56f2 in _int_free (av=<value optimized out>, p=<value optimized out>) at malloc.c:4750 #6 0x005d87cd in *__GI___libc_free (mem=0x86dda50) at malloc.c:3716 #7 0x004eb6f1 in operator delete(void*) () from /usr/lib/libstdc++.so.6 #8 0x0250adb9 in ~QtPlatformPlugin (this=0xb75014b8, __in_chrg=<value optimized out>) at ../../../WebKit/qt/WebCoreSupport/QtPlatformPlugin.cpp:117 #9 0x024ee36e in ~ChromeClientQt (this=0xb7501470, __in_chrg=<value optimized out>) at ../../../WebKit/qt/WebCoreSupport/ChromeClientQt.cpp:82 #10 0x024eee26 in WebCore::ChromeClientQt::chromeDestroyed (this=0xb7501470) at ../../../WebKit/qt/WebCoreSupport/ChromeClientQt.cpp:271 #11 0x022424c1 in ~Chrome (this=0xb7501240, __in_chrg=<value optimized out>) at ../../../WebCore/page/Chrome.cpp:67 ---Type <return> to continue, or q <return> to quit--- #12 0x02296e35 in WTF::deleteOwnedPtr<WebCore::Chrome> (ptr=0xb7501240) at ../../../JavaScriptCore/wtf/OwnPtrCommon.h:55 #13 0x02295971 in ~OwnPtr (this=0xb7500a34, __in_chrg=<value optimized out>) at ../../../JavaScriptCore/wtf/OwnPtr.h:52 #14 0x02292a27 in ~Page (this=0xb7500a30, __in_chrg=<value optimized out>) at ../../../WebCore/page/Page.cpp:216 #15 0x02517a2e in ~QWebPagePrivate (this=0x81a3430, __in_chrg=<value optimized out>) at ../../../WebKit/qt/Api/qwebpage.cpp:315 #16 0x0251c7f6 in ~QWebPage (this=0x81a33c0, __in_chrg=<value optimized out>) at ../../../WebKit/qt/Api/qwebpage.cpp:1707 #17 0x08077b56 in ~WebPage (this=0x81a33c0, __in_chrg=<value optimized out>) at ../../../../WebKitTools/QtTestBrowser/webpage.h:39 #18 0x002ca098 in QObjectPrivate::deleteChildren (this=0xb7501fa8) at kernel/qobject.cpp:1990 #19 0x03393bb5 in ~QWidget (this=0xb7501148, __in_chrg=<value optimized out>) at kernel/qwidget.cpp:1459 #20 0x03831b89 in ~QMainWindow (this=0xb7501148, __in_chrg=<value optimized out>) at widgets/qmainwindow.cpp:342 #21 0x0806f7de in ~MainWindow (this=0xb7501148, __in_chrg=<value optimized out>) at ../../../../WebKitTools/QtTestBrowser/mainwindow.h:41 #22 0x080666fb in ~LauncherWindow (this=0xb7501148, __in_chrg=<value optimized out>) ---Type <return> to continue, or q <return> to quit--- at ../../../../WebKitTools/QtTestBrowser/main.cpp:218 #23 0x002ce366 in qDeleteInEventHandler (o=0xb7501148) at kernel/qobject.cpp:4013 #24 0x002c8de8 in QObject::event (this=0xb7501148, e=0x81ca930) at kernel/qobject.cpp:1235 #25 0x033a65d1 in QWidget::event (this=0xb7501148, event=0x81ca930) at kernel/qwidget.cpp:8428 #26 0x03833dae in QMainWindow::event (this=0xb7501148, event=0x81ca930) at widgets/qmainwindow.cpp:1434 #27 0x0333ae2c in QApplicationPrivate::notify_helper (this=0x8134d68, receiver=0xb7501148, e=0x81ca930) at kernel/qapplication.cpp:4242 #28 0x0333ac97 in QApplication::notify (this=0xbffff304, receiver=0xb7501148, e=0x81ca930) at kernel/qapplication.cpp:4207 #29 0x002b140b in QCoreApplication::notifyInternal (this=0xbffff304, receiver=0xb7501148, event=0x81ca930) at kernel/qcoreapplication.cpp:704 #30 0x0806f213 in QCoreApplication::sendEvent (receiver=0xb7501148, event=0x81ca930) at /usr/local/Trolltech/Qt-4.6.0/include/QtCore/qcoreapplication.h:215 #31 0x002b24bf in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x8134e50) at kernel/qcoreapplication.cpp:1345 #32 0x002b2177 in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1238 #33 0x0340c148 in QCoreApplication::sendPostedEvents () ---Type <return> to continue, or q <return> to quit---