它是Qt庫還是我自己的應用程序的錯誤？

我寫過一個使用Qt庫的應用程序（4.7和4.7.1都有這個問題），這個應用程序主要處理webkit（顯示網頁）和Qt-webkit橋接（將C++類映射到Javascript對象）。但得到以下段錯誤：它是Qt庫還是我自己的應用程序的錯誤？

Program received signal SIGSEGV, Segmentation fault. 
0x00007ffff5585db7 in QHttpNetworkConnectionChannel::allDone (this=0x86bb20) 
    at /var/tmp/qt-src/src/network/access/qhttpnetworkconnectionchannel.cpp:620 
warning: Source file is more recent than executable. 
620  if (reply->d_func()->expectContent() && reply->d_func()->autoDecompress && !reply->d_func()->streamEnd) 
(gdb) bt 
#0 0x00007ffff5585db7 in QHttpNetworkConnectionChannel::allDone (
    this=0x86bb20) 
    at /var/tmp/qt-src/src/network/access/qhttpnetworkconnectionchannel.cpp:620 
#1 0x00007ffff5586992 in QHttpNetworkConnectionChannel::_q_receiveReply (
    this=0x86bb20) 
    at /var/tmp/qt-src/src/network/access/qhttpnetworkconnectionchannel.cpp:397 
#2 0x00007ffff558829a in QHttpNetworkConnectionChannel::qt_metacall (
    this=0x86bb20, _c=QMetaObject::InvokeMetaMethod, 
    _id=<value optimized out>, _a=0x7fffffffd8c0) 
    at .moc/release-shared/moc_qhttpnetworkconnectionchannel_p.cpp:92 
#3 0x00007ffff51ec0f8 in QMetaObject::activate (sender=0x8655f0, 
    m=<value optimized out>, local_signal_index=<value optimized out>, 
    argv=0x8a9e20) at /var/tmp/qt-src/src/corelib/kernel/qobject.cpp:3272 
#4 0x00007ffff55ed678 in QAbstractSocketPrivate::canReadNotification (
    this=0x865610) 
    at /var/tmp/qt-src/src/network/socket/qabstractsocket.cpp:639 
#5 0x00007ffff55dc791 in QReadNotifier::event (this=<value optimized out>, 
    e=0x1) at /var/tmp/qt-src/src/network/socket/qnativesocketengine.cpp:1103 
#6 0x00007ffff5a67d5f in QApplicationPrivate::notify_helper (this=0x61b840, 
    receiver=0x965270, e=0x7fffffffdee0) 
    at /var/tmp/qt-src/src/gui/kernel/qapplication.cpp:4396 
#7 0x00007ffff5a6e94b in QApplication::notify (this=0x7fffffffe1f0, 
    receiver=0x965270, e=0x7fffffffdee0) 
---Type <return> to continue, or q <return> to quit--- 
    at /var/tmp/qt-src/src/gui/kernel/qapplication.cpp:4277 
#8 0x00007ffff51d60a4 in QCoreApplication::notifyInternal (
    this=0x7fffffffe1f0, receiver=0x965270, event=0x7fffffffdee0) 
    at /var/tmp/qt-src/src/corelib/kernel/qcoreapplication.cpp:732 
#9 0x00007ffff5203a3a in QCoreApplication::sendEvent (source=0x624b20) 
    at /var/tmp/qt-src/src/corelib/kernel/qcoreapplication.h:215 
#10 socketNotifierSourceDispatch (source=0x624b20) 
    at /var/tmp/qt-src/src/corelib/kernel/qeventdispatcher_glib.cpp:110 
#11 0x00007ffff26f08c2 in g_main_context_dispatch() from /lib/libglib-2.0.so.0 
#12 0x00007ffff26f4748 in ??() from /lib/libglib-2.0.so.0 
#13 0x00007ffff26f48fc in g_main_context_iteration() 
    from /lib/libglib-2.0.so.0 
#14 0x00007ffff5203bcc in QEventDispatcherGlib::processEvents (this=0x6210d0, 
    flags=<value optimized out>) 
    at /var/tmp/qt-src/src/corelib/kernel/qeventdispatcher_glib.cpp:415 
#15 0x00007ffff5b18bcf in QGuiEventDispatcherGlib::processEvents (
    this=0x86bb20, flags=<value optimized out>) 
    at /var/tmp/qt-src/src/gui/kernel/qguieventdispatcher_glib.cpp:204 
#16 0x00007ffff51d53f5 in QEventLoop::processEvents (
    this=<value optimized out>, flags=...) 
    at /var/tmp/qt-src/src/corelib/kernel/qeventloop.cpp:149 
#17 0x00007ffff51d5646 in QEventLoop::exec (this=0x7fffffffe150, flags=...) 
    at /var/tmp/qt-src/src/corelib/kernel/qeventloop.cpp:201 
---Type <return> to continue, or q <return> to quit--- 
#18 0x00007ffff51d7484 in QCoreApplication::exec() 
    at /var/tmp/qt-src/src/corelib/kernel/qcoreapplication.cpp:1009 
#19 0x00000000004064b4 in main (argc=1, argv=0x7fffffffe2f8) 
    at ../myPlatform/main.cpp:10

來源

2010-12-05 Mickey Shine

如果我們有源代碼的例子，這將有所幫助，否則解決問題可能會相當困難。 – 2010-12-05 10:45:13