On Mon, Apr 14, 2014 at 7:07 AM, Rutledge Shawn <shawn.rutle...@digia.com>wrote:
> > On 11 Apr 2014, at 10:15 PM, Matt Broadstone wrote: > > > Hi, > > We're experiencing an odd crash while running our Qt Quick application > in a VirtualBox session using eglfs on the framebuffer. The application > works perfectly passing the '-platform eglfs' options, however, when we try > to use a ComboBox we get a segfault/qFatal, with the resulting backtrace > (only first twelve frames included for "brevity"): > > > > #0 0x00007eff7c041389 in raise () from /usr/lib/libc.so.6 > > #1 0x00007eff7c042788 in abort () from /usr/lib/libc.so.6 > > #2 0x00007eff7c956895 in qt_message_fatal (context=..., message=...) at > global/qlogging.cpp:979 > > #3 QMessageLogger::fatal (this=this@entry=0x7fff32b96030, > > msg=msg@entry=0x7eff7768e380 > "EGLFS: OpenGL windows cannot be mixed with others.") at > global/qlogging.cpp:384 > > #4 0x00007eff7766cfb7 in QEglFSWindow::create (this=this@entry=0x1db8030) > at qeglfswindow.cpp:115 > > #5 0x00007eff7766b60e in QEglFSIntegration::createPlatformWindow > (this=<optimized out>, window=0x1db66f0) at qeglfsintegration.cpp:122 > > #6 0x00007eff7d03180b in QWindow::create (this=this@entry=0x1db66f0) > at kernel/qwindow.cpp:480 > > #7 0x00007eff7d032150 in QWindow::setVisible (this=0x1db66f0, > visible=<optimized out>) at kernel/qwindow.cpp:426 > > #8 0x00007eff6c888d6a in QQuickPopupWindow::show > > (this=this@entry=0x1db66f0) > at qquickpopupwindow.cpp:95 > > #9 0x00007eff6c888579 in QQuickMenuPopupWindow::show (this=0x1db66f0) > at qquickmenupopupwindow.cpp:57 > > #10 0x00007eff6c884efb in QQuickMenu::__popup (this=0x1bff2e0, > x=<optimized out>, y=<optimized out>, atItemIndex=0) at qquickmenu.cpp:403 > > #11 0x00007eff6c897f53 in QQuickMenu::qt_static_metacall > > (_o=_o@entry=0x1bff2e0, > _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=22, > _a=_a@entry=0x7fff32b96550) > at .moc/moc_qquickmenu_p.cpp:227 > > #12 0x00007eff6c898427 in QQuickMenu::qt_metacall (this=0x1bff2e0, > _c=QMetaObject::InvokeMetaMethod, _id=22, _a=0x7fff32b96550) at > .moc/moc_qquickmenu_p.cpp:330 > > > > There is some mention on the i.MX6 wiki page about multiple windows ( > http://qt-project.org/wiki/i.MX-6), but that appears to be related to > mixing Quick views and widgets, which we are not doing. There also seems to > be an existing ComboBox bug ( > https://bugreports.qt-project.org/browse/QTBUG-35989), but this looks > like it's quite different. > > > > Any insight would be appreciated, I just wanted to do some further > investigation here before creating the bug report. > > What version do you have? Looks like the combo box is trying to create > another window for the dropdown list, and we're not allowed to have more > than one window on eglfs. I don't think it should be doing that anymore on > platforms where it's not supported. > > > Forgot to reply-all on that last one, apologies: Qt 5.2.1 (built from source off the git v5.2.1 tag), using this configure line: ./configure -confirm-license -opensource -debug -system-sqlite -openssl-linked \ -nomake examples -nomake tests -plugin-sql-psql -plugin-sql-sqlite \ -eglfs -no-rpath -optimized-qmake -dbus-linked -reduce-relocations \ -opengl es2 -directfb Running on Arch Linux version 2013.03.01 in VirtualBox 4.3.10 r93012, with the form: ./ourquickapp -platform eglfs (same thing happens with 5.3 built from source, but this failed related to a different issue related to unaddressable byes for ioctl, and only works when run in valgrind) Please let me know if there's any other information I can provide. Matt
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