Bug 372897

Summary: kwin crashes while scroling in Wolfram Mathematica
Product: [Plasma] kwin Reporter: pitlochry <pitlochry>
Component: generalAssignee: KWin default assignee <kwin-bugs-null>
Status: RESOLVED WORKSFORME    
Severity: crash Keywords: drkonqi, triaged
Priority: NOR    
Version First Reported In: 5.8.4   
Target Milestone: ---   
Platform: Arch Linux   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description pitlochry 2016-11-24 20:43:57 UTC 
Application: kwin_x11 (5.8.4)

Qt Version: 5.7.0
Frameworks Version: 5.28.0
Operating System: Linux 4.8.10-1-ARCH x86_64
Distribution (Platform): Archlinux Packages

-- Information about the crash:
- What I was doing when the application crashed:
Vertical Two-Finger-Scrolling in Wolfram Mathematica 8. 

- Unusual behavior I noticed:
Screen flickers and system is unresponsive for several minutes. (Flickering Screen is also a common behaviour in Thunderbird)

The crash can be reproduced sometimes.

-- Backtrace:
Application: KWin (kwin_x11), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fa502e86840 (LWP 11498))]

Thread 5 (Thread 0x7fa4c7fff700 (LWP 11551)):
#0  0x00007fa4fbb5010f in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fa4feea6ac4 in  () at /usr/lib/libQt5Script.so.5
#2  0x00007fa4feea6b09 in  () at /usr/lib/libQt5Script.so.5
#3  0x00007fa4fbb4a454 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fa5028bc7df in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7fa4d79ec700 (LWP 11548)):
#0  0x00007fa5028b3551 in ppoll () at /usr/lib/libc.so.6
#1  0x00007fa4fff60ac9 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib/libQt5Core.so.5
#2  0x00007fa4fff623b8 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#3  0x00007fa4fff0f23a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007fa4ffd320f3 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#5  0x00007fa4fa8a82d5 in  () at /usr/lib/libQt5Qml.so.5
#6  0x00007fa4ffd36d78 in  () at /usr/lib/libQt5Core.so.5
#7  0x00007fa4fbb4a454 in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007fa5028bc7df in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7fa4e6769700 (LWP 11503)):
#0  0x00007fa5028b3551 in ppoll () at /usr/lib/libc.so.6
#1  0x00007fa4fff60ac9 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib/libQt5Core.so.5
#2  0x00007fa4fff623b8 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#3  0x00007fa4fff0f23a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007fa4ffd320f3 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#5  0x00007fa4f9a72e55 in  () at /usr/lib/libQt5DBus.so.5
#6  0x00007fa4ffd36d78 in  () at /usr/lib/libQt5Core.so.5
#7  0x00007fa4fbb4a454 in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007fa5028bc7df in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7fa4e868a700 (LWP 11501)):
#0  0x00007fa5028b348d in poll () at /usr/lib/libc.so.6
#1  0x00007fa5019f38e0 in  () at /usr/lib/libxcb.so.1
#2  0x00007fa5019f5679 in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007fa4e9136449 in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x00007fa4ffd36d78 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007fa4fbb4a454 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007fa5028bc7df in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7fa502e86840 (LWP 11498)):
[KCrash Handler]
#6  0x00007fa4fb6ecbc4 in  () at /usr/lib/libkwinglutils.so.9
#7  0x00007fa4fb6ee7ee in KWin::GLVertexBuffer::setData(int, int, float const*, float const*) () at /usr/lib/libkwinglutils.so.9
#8  0x00007fa4fb6f49c9 in KWin::GLTexture::render(QRegion, QRect const&, bool) () at /usr/lib/libkwinglutils.so.9
#9  0x00007fa50247a686 in  () at /usr/lib/libkwin.so.5
#10 0x00007fa502468571 in  () at /usr/lib/libkwin.so.5
#11 0x00007fa5024687d0 in  () at /usr/lib/libkwin.so.5
#12 0x00007fa50247db49 in KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#13 0x00007fa4ff2769f5 in  () at /usr/lib/libkwin4_effect_builtins.so.1
#14 0x00007fa50247dade in KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#15 0x00007fa4ff1deda2 in  () at /usr/lib/libkwin4_effect_builtins.so.1
#16 0x00007fa50247dade in KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#17 0x00007fa4ff6da811 in KWin::Effect::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwineffects.so.9
#18 0x00007fa50247dade in KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#19 0x00007fa4ff6da811 in KWin::Effect::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwineffects.so.9
#20 0x00007fa50247dade in KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#21 0x00007fa4ff6da811 in KWin::Effect::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwineffects.so.9
#22 0x00007fa50247dade in KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#23 0x00007fa50244e578 in KWin::Scene::paintWindowThumbnails(KWin::Scene::Window*, QRegion, double, double, double) () at /usr/lib/libkwin.so.5
#24 0x00007fa50244ea16 in KWin::Scene::paintWindow(KWin::Scene::Window*, int, QRegion, KWin::WindowQuadList) () at /usr/lib/libkwin.so.5
#25 0x00007fa50244b16b in KWin::Scene::paintSimpleScreen(int, QRegion) () at /usr/lib/libkwin.so.5
#26 0x00007fa50245fa43 in  () at /usr/lib/libkwin.so.5
#27 0x00007fa50244ddc4 in KWin::Scene::finalPaintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwin.so.5
#28 0x00007fa50247d55f in KWin::EffectsHandlerImpl::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwin.so.5
#29 0x00007fa4ff6da5ff in KWin::Effect::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwineffects.so.9
#30 0x00007fa50247d50a in KWin::EffectsHandlerImpl::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwin.so.5
#31 0x00007fa4ff6da5ff in KWin::Effect::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwineffects.so.9
#32 0x00007fa50247d50a in KWin::EffectsHandlerImpl::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwin.so.5
#33 0x00007fa4ff6da5ff in KWin::Effect::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwineffects.so.9
#34 0x00007fa50247d50a in KWin::EffectsHandlerImpl::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwin.so.5
#35 0x00007fa4ff6da5ff in KWin::Effect::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwineffects.so.9
#36 0x00007fa50247d50a in KWin::EffectsHandlerImpl::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwin.so.5
#37 0x00007fa4ff6da5ff in KWin::Effect::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwineffects.so.9
#38 0x00007fa50247d50a in KWin::EffectsHandlerImpl::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwin.so.5
#39 0x00007fa50244da6d in KWin::Scene::paintScreen(int*, QRegion const&, QRegion const&, QRegion*, QRegion*, QMatrix4x4 const&) () at /usr/lib/libkwin.so.5
#40 0x00007fa502464298 in KWin::SceneOpenGL::paint(QRegion, QList<KWin::Toplevel*>) () at /usr/lib/libkwin.so.5
#41 0x00007fa50243d9d7 in KWin::Compositor::performCompositing() () at /usr/lib/libkwin.so.5
#42 0x00007fa4fff3d473 in QObject::event(QEvent*) () at /usr/lib/libQt5Core.so.5
#43 0x00007fa500bf0e0c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#44 0x00007fa500bf8581 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#45 0x00007fa4fff10de0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#46 0x00007fa4fff646ae in QTimerInfoList::activateTimers() () at /usr/lib/libQt5Core.so.5
#47 0x00007fa4fff62618 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#48 0x00007fa4e91af0dd in  () at /usr/lib/libQt5XcbQpa.so.5
#49 0x00007fa4fff0f23a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#50 0x00007fa4fff1773c in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#51 0x00007fa502b7b495 in kdemain () at /usr/lib/libkdeinit5_kwin_x11.so
#52 0x00007fa5027f4291 in __libc_start_main () at /usr/lib/libc.so.6
#53 0x000000000040069a in _start ()

Reported using DrKonqi
Comment 1 Martin Flöser 2016-11-25 06:41:17 UTC 
Unfortunately an Arch system which means a useless backtrace without debug symbols. We see that it crashes, but we have no idea where. Nothing we can do, no way to investigate.
Comment 2 pitlochry 2016-11-25 08:18:01 UTC 
Thanks for your feedback. 

Drkonqi (or whatever this graphical kde bug report frontend is called) said "information is useful/helpful" and gave it 3 stars. So I made this bug report (the first time with this graphical frontend) but couldn't imagine, that it was really useful.

Would be great if drkonqi did not say "Information is useful" when the information is NOT useful.
Comment 3 Martin Flöser 2016-11-25 08:34:27 UTC 
It would also be great if Arch would provide debug infos or would at least disable the reporting.
Comment 4 Andrew Crouthamel 2018-09-26 22:18:54 UTC 
Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information as soon as possible and set the bug status as REPORTED. Due to regular bug tracker maintenance, if the bug is still in NEEDSINFO status with no change in 30 days, the bug will be closed as RESOLVED > WORKSFORME due to lack of needed information.

For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

If you have already provided the requested information, please set the bug status as REPORTED so that the KDE team knows that the bug is ready to be confirmed.

Thank you for helping us make KDE software even better for everyone!
Comment 5 Andrew Crouthamel 2018-10-27 03:43:25 UTC 
Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now closed as RESOLVED > WORKSFORME due to lack of needed information.

For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

Thank you for helping us make KDE software even better for everyone!