Details
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Bug
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Resolution: Done
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P1: Critical
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5.7.0
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None
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linux amd64 (fedora rawhide)
Description
Bino 3D video player crashes with qt 5.7
after QXcbGlxWindow::createVisual code change.
No issue with older versions of qt5 even with qt4.
The bino faulty code :
bool video_output_qt::supports_stereo() const { QGLFormat fmt = _format; fmt.setStereo(true); QGLWidget *tmpwidget = new QGLWidget(fmt); -> segfault here bool ret = tmpwidget->format().stereo(); delete tmpwidget; return ret; }
The backtrace :
Thread 1 "bino" received signal SIGSEGV, Segmentation fault. 0x00007ffff7e31219 in QXcbGlxWindow::createVisual() () from /usr/lib64/qt5/plugins/xcbglintegrations/libqxcb-glx-integration.so (gdb) bt #0 0x00007ffff7e31219 in QXcbGlxWindow::createVisual() () from /usr/lib64/qt5/plugins/xcbglintegrations/libqxcb-glx-integration.so #1 0x00007fffdf454c66 in QXcbWindow::create() () from /lib64/libQt5XcbQpa.so.5 #2 0x00007fffdf441370 in QXcbIntegration::createPlatformWindow(QWindow*) const () from /lib64/libQt5XcbQpa.so.5 #3 0x00007ffff48de429 in QWindowPrivate::create(bool) () from /lib64/libQt5Gui.so.5 #4 0x00007ffff7f9ac4a in QGLContext::chooseContext(QGLContext const*) () from /lib64/libQt5OpenGL.so.5 #5 0x00007ffff7f9971a in QGLContext::create(QGLContext const*) () from /lib64/libQt5OpenGL.so.5 #6 0x00007ffff7f9753f in QGLWidget::setContext(QGLContext*, QGLContext const*, bool) () from /lib64/libQt5OpenGL.so.5 #7 0x00007ffff7f99a75 in QGLWidgetPrivate::initContext(QGLContext*, QGLWidget const*) () from /lib64/libQt5OpenGL.so.5 #8 0x00005555555b8f48 in video_output_qt::supports_stereo (this=<optimized out>) at video_output_qt.cpp:886
Attachments
| For Gerrit Dashboard: QTBUG-55291 | ||||||
|---|---|---|---|---|---|---|
| # | Subject | Branch | Project | Status | CR | V |
| 175040,2 | xcb: Avoid crash when requesting non-supported stereo formats | 5.7 | qt/qtbase | Status: MERGED | +2 | 0 |