https://bugs.kde.org/show_bug.cgi?id=372863
Bug ID: 372863
Summary: KDevelop freezes when opening parallel session
Product: kdevelop
Version: git master
Platform: Other
OS: Linux
Status: UNCONFIRMED
Severity: major
Priority: NOR
Component: general
Assignee: kdevelop-bugs-n...@kde.org
Reporter: k...@jbev.net
Target Milestone: ---
When I open a second (parallel) KDevelop session, the program seems to enter an
infinite loop. The window contents aren't updated (no draw refresh), my CPU
goes to 100% and I can only kill KDevelop forcefully.
To gather some debug information, I started KDevelop and then ran a second
instance in a different session (kdevelop -s othersession) via GDB.
The following is printed to the console:
Starting program: /usr/bin/kdevelop -s kdevelop
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[New Thread 0x7fffd75cf700 (LWP 24210)]
[New Thread 0x7fffd5803700 (LWP 24211)]
[New Thread 0x7fffc4a7f700 (LWP 24212)]
[New Thread 0x7fffb8505700 (LWP 24231)]
[New Thread 0x7fffb7d04700 (LWP 24232)]
[Thread 0x7fffb8505700 (LWP 24231) exited]
[Thread 0x7fffb7d04700 (LWP 24232) exited]
[New Thread 0x7fffb7d04700 (LWP 24235)]
QOpenGLFramebufferObject: Unsupported framebuffer format.
QOpenGLFramebufferObject: Unsupported framebuffer format.
QOpenGLFramebufferObject: Unsupported framebuffer format.
QOpenGLFramebufferObject: Unsupported framebuffer format.
QOpenGLFramebufferObject: Framebuffer incomplete, missing attachment.
and then KDevelop hangs. After sending it a SIGINT, I get the following
backtrace:
#0 0x00007fffc5b8409a in () at /usr/lib/libnvidia-glcore.so.375.20
#1 0x00007fffc5b15ef1 in () at /usr/lib/libnvidia-glcore.so.375.20
#2 0x00007fffc5b18121 in () at /usr/lib/libnvidia-glcore.so.375.20
#3 0x00007fffc5b19071 in () at /usr/lib/libnvidia-glcore.so.375.20
#4 0x00007fffc5766b54 in () at /usr/lib/libnvidia-glcore.so.375.20
#5 0x00007fffc5768b06 in () at /usr/lib/libnvidia-glcore.so.375.20
#6 0x00007fffeab9cf12 in
QSGBatchRenderer::Renderer::unmap(QSGBatchRenderer::Buffer*, bool) () at
/usr/lib/libQt5Quick.so.5
#7 0x00007fffeab9ec67 in
QSGBatchRenderer::Renderer::uploadBatch(QSGBatchRenderer::Batch*) () at
/usr/lib/libQt5Quick.so.5
#8 0x00007fffeaba924c in QSGBatchRenderer::Renderer::render() () at
/usr/lib/libQt5Quick.so.5
#9 0x00007fffeabb4bff in QSGRenderer::renderScene(QSGBindable const&) () at
/usr/lib/libQt5Quick.so.5
#10 0x00007fffeabb52cb in QSGRenderer::renderScene(unsigned int) () at
/usr/lib/libQt5Quick.so.5
#11 0x00007fffeabc4ebe in QSGRenderContext::renderNextFrame(QSGRenderer*,
unsigned int) () at /usr/lib/libQt5Quick.so.5
#12 0x00007fffeac0e17e in QQuickWindowPrivate::renderSceneGraph(QSize const&)
() at /usr/lib/libQt5Quick.so.5
#13 0x00007fffeacf24d8 in QQuickRenderControl::render() () at
/usr/lib/libQt5Quick.so.5
#14 0x00007fffeb2732da in () at /usr/lib/libQt5QuickWidgets.so.5
#15 0x00007fffeb274f44 in QQuickWidget::resizeEvent(QResizeEvent*) () at
/usr/lib/libQt5QuickWidgets.so.5
#16 0x00007ffff631334e in QWidget::event(QEvent*) () at
/usr/lib/libQt5Widgets.so.5
#17 0x00007ffff62cbe0c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /usr/lib/libQt5Widgets.so.5
#18 0x00007ffff62d3581 in QApplication::notify(QObject*, QEvent*) () at
/usr/lib/libQt5Widgets.so.5
#19 0x00007ffff55ebde0 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /usr/lib/libQt5Core.so.5
#20 0x00007ffff630bc62 in QWidgetPrivate::sendPendingMoveAndResizeEvents(bool,
bool) () at /usr/lib/libQt5Widgets.so.5
#21 0x00007ffff630fae3 in QWidgetPrivate::show_helper() () at
/usr/lib/libQt5Widgets.so.5
#22 0x00007ffff6312945 in QWidget::setVisible(bool) () at
/usr/lib/libQt5Widgets.so.5
#23 0x00007ffff2947890 in () at /usr/lib/libKDevPlatformSublime.so.10
#24 0x00007fffb5f215ab in () at
/usr/lib/qt/plugins/kdevplatform/26/kdevwelcomepage.so
#25 0x00007fffb5f218a3 in () at
/usr/lib/qt/plugins/kdevplatform/26/kdevwelcomepage.so
#26 0x00007ffff6a1a10b in KPluginFactory::create(char const*, QWidget*,
QObject*, QList<QVariant> const&, QString const&) () at
/usr/lib/libKF5CoreAddons.so.5
#27 0x00007ffff7ac35a7 in
KDevelop::PluginController::loadPluginInternal(QString const&) () at
/usr/lib/libKDevPlatformShell.so.10
#28 0x000000000041298a in ()
#29 0x00007ffff4c5f291 in __libc_start_main () at /usr/lib/libc.so.6
#30 0x000000000040682a in _start ()
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