Bug 366794

Application: kwin_x11 (5.7.3)

Qt Version: 5.7.0
Frameworks Version: 5.25.0
Operating System: Linux 4.1.27-27-default x86_64
Distribution: "openSUSE Leap 42.1 (x86_64)"

-- Information about the crash:
- What I was doing when the application crashed:
navigating or tranferring filel from local to an ftp:// or an sftp:// location

The crash can be reproduced sometimes.

-- Backtrace:
Application: KWin (kwin_x11), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fdede65d800 (LWP 3797))]

Thread 6 (Thread 0x7fdec33b9700 (LWP 3799)):
#0  0x00007fdeddff4bfd in poll () from /lib64/libc.so.6
#1  0x00007fdedcf84422 in ?? () from /usr/lib64/libxcb.so.1
#2  0x00007fdedcf8600f in xcb_wait_for_event () from /usr/lib64/libxcb.so.1
#3  0x00007fdec42913e9 in QXcbEventReader::run (this=0xbbedd0) at qxcbconnection.cpp:1337
#4  0x00007fdedb340899 in QThreadPrivate::start (arg=0xbbedd0) at thread/qthread_unix.cpp:344
#5  0x00007fdedd1a10a4 in start_thread () from /lib64/libpthread.so.0
#6  0x00007fdeddffd02d in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7fdec1746700 (LWP 3800)):
#0  0x00007fdeddff4bfd in poll () from /lib64/libc.so.6
#1  0x00007fdedb541e3a in poll (__timeout=-1, __nfds=1, __fds=0x7fdeb4012248) at /usr/include/bits/poll2.h:46
#2  qt_ppoll (timeout_ts=0x0, nfds=1, fds=0x7fdeb4012248) at kernel/qcore_unix.cpp:93
#3  qt_safe_poll (fds=0x7fdeb4012248, nfds=nfds@entry=1, timeout_ts=timeout_ts@entry=0x0) at kernel/qcore_unix.cpp:112
#4  0x00007fdedb54366b in QEventDispatcherUNIX::processEvents (this=<optimized out>, flags=...) at kernel/qeventdispatcher_unix.cpp:495
#5  0x00007fdedb4f58cb in QEventLoop::exec (this=this@entry=0x7fdec1745da0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:210
#6  0x00007fdedb33c06a in QThread::exec (this=<optimized out>) at thread/qthread.cpp:507
#7  0x00007fded49dd4b5 in ?? () from /usr/lib64/libQt5DBus.so.5
#8  0x00007fdedb340899 in QThreadPrivate::start (arg=0x7fded4c46d00) at thread/qthread_unix.cpp:344
#9  0x00007fdedd1a10a4 in start_thread () from /lib64/libpthread.so.0
#10 0x00007fdeddffd02d in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7fdeba932700 (LWP 3819)):
#0  0x00007fdeddff4bfd in poll () from /lib64/libc.so.6
#1  0x00007fdedb541e3a in poll (__timeout=-1, __nfds=1, __fds=0x7fdea8000ac8) at /usr/include/bits/poll2.h:46
#2  qt_ppoll (timeout_ts=0x0, nfds=1, fds=0x7fdea8000ac8) at kernel/qcore_unix.cpp:93
#3  qt_safe_poll (fds=0x7fdea8000ac8, nfds=nfds@entry=1, timeout_ts=timeout_ts@entry=0x0) at kernel/qcore_unix.cpp:112
#4  0x00007fdedb54366b in QEventDispatcherUNIX::processEvents (this=<optimized out>, flags=...) at kernel/qeventdispatcher_unix.cpp:495
#5  0x00007fdedb4f58cb in QEventLoop::exec (this=this@entry=0x7fdeba931db0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:210
#6  0x00007fdedb33c06a in QThread::exec (this=this@entry=0x10a8e70) at thread/qthread.cpp:507
#7  0x00007fded57f7918 in QQmlThreadPrivate::run (this=0x10a8e70) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/qml/qml/ftw/qqmlthread.cpp:147
#8  0x00007fdedb340899 in QThreadPrivate::start (arg=0x10a8e70) at thread/qthread_unix.cpp:344
#9  0x00007fdedd1a10a4 in start_thread () from /lib64/libpthread.so.0
#10 0x00007fdeddffd02d in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7fdea6cc5700 (LWP 3820)):
#0  0x00007fdeddff4bfd in poll () from /lib64/libc.so.6
#1  0x00007fdedb541e3a in poll (__timeout=-1, __nfds=1, __fds=0x7fdea0000ac8) at /usr/include/bits/poll2.h:46
#2  qt_ppoll (timeout_ts=0x0, nfds=1, fds=0x7fdea0000ac8) at kernel/qcore_unix.cpp:93
#3  qt_safe_poll (fds=0x7fdea0000ac8, nfds=nfds@entry=1, timeout_ts=timeout_ts@entry=0x0) at kernel/qcore_unix.cpp:112
#4  0x00007fdedb54366b in QEventDispatcherUNIX::processEvents (this=<optimized out>, flags=...) at kernel/qeventdispatcher_unix.cpp:495
#5  0x00007fdedb4f58cb in QEventLoop::exec (this=this@entry=0x7fdea6cc4db0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:210
#6  0x00007fdedb33c06a in QThread::exec (this=this@entry=0x198c980) at thread/qthread.cpp:507
#7  0x00007fded57f7918 in QQmlThreadPrivate::run (this=0x198c980) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/qml/qml/ftw/qqmlthread.cpp:147
#8  0x00007fdedb340899 in QThreadPrivate::start (arg=0x198c980) at thread/qthread_unix.cpp:344
#9  0x00007fdedd1a10a4 in start_thread () from /lib64/libpthread.so.0
#10 0x00007fdeddffd02d in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7fde97a2c700 (LWP 3823)):
#0  0x00007fdedd1a503f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fdeda4d69cb in ?? () from /usr/lib64/libQt5Script.so.5
#2  0x00007fdeda4d69f9 in ?? () from /usr/lib64/libQt5Script.so.5
#3  0x00007fdedd1a10a4 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fdeddffd02d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7fdede65d800 (LWP 3797)):
[KCrash Handler]
#6  0x000000004015850f in ?? ()
#7  0x00007fdecccd82c0 in ?? () from /usr/lib64/libnvidia-glcore.so.340.96
#8  0x00007fdecccdf350 in ?? () from /usr/lib64/libnvidia-glcore.so.340.96
#9  0x00007fdecc94c378 in ?? () from /usr/lib64/libnvidia-glcore.so.340.96
#10 0x00007fdedbd2796a in glDrawArrays (count=4, first=0, mode=6, this=0x1661340) at ../../src/gui/opengl/qopenglfunctions.h:741
#11 QOpenGLTextureGlyphCache::resizeTextureData (this=0x4b86a70, width=<optimized out>, height=<optimized out>) at opengl/qopengltextureglyphcache.cpp:392
#12 0x00007fdedbcc7730 in resizeCache (height=32, width=256, this=0x4b86a70) at painting/qtextureglyphcache_p.h:130
#13 QTextureGlyphCache::fillInPendingGlyphs (this=0x4b86a70) at painting/qtextureglyphcache.cpp:247
#14 0x00007fded5eb5843 in QSGTextMaskMaterial::populate (this=<optimized out>, p=..., glyphIndexes=..., glyphPositions=..., geometry=geometry@entry=0x26a6a00, boundingRect=boundingRect@entry=0x7fff1c0500e0, baseLine=baseLine@entry=0x26a69e8, margins=...) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/quick/scenegraph/qsgdefaultglyphnode_p.cpp:457
#15 0x00007fded5eb383d in QSGDefaultGlyphNode::update (this=0x26a68f0) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/quick/scenegraph/qsgdefaultglyphnode.cpp:127
#16 0x00007fded5f37fab in QQuickTextNode::addGlyphs (this=this@entry=0x17415f0, position=..., glyphs=..., color=..., style=style@entry=QQuickText::Normal, styleColor=..., parentNode=parentNode@entry=0x0) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/quick/items/qquicktextnode.cpp:115
#17 0x00007fded5f3e037 in QQuickTextNodeEngine::addToSceneGraph (this=this@entry=0x7fff1c050330, parentNode=parentNode@entry=0x17415f0, style=style@entry=QQuickText::Normal, styleColor=...) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/quick/items/qquicktextnodeengine.cpp:774
#18 0x00007fded5f38798 in QQuickTextNode::addTextLayout (this=this@entry=0x17415f0, position=..., textLayout=textLayout@entry=0x252ce28, color=..., style=QQuickText::Normal, styleColor=..., anchorColor=..., selectionColor=..., selectedTextColor=..., selectionStart=selectionStart@entry=-1, selectionEnd=selectionEnd@entry=-1, lineStart=lineStart@entry=0, lineCount=lineCount@entry=1) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/quick/items/qquicktextnode.cpp:265
#19 0x00007fded5f37967 in QQuickText::updatePaintNode (this=0x248ff00, oldNode=<optimized out>, data=<optimized out>) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/quick/items/qquicktext.cpp:2301
#20 0x00007fded5ef5e87 in QQuickWindowPrivate::updateDirtyNode (this=this@entry=0x194b2e0, item=item@entry=0x248ff00) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/quick/items/qquickwindow.cpp:3085
#21 0x00007fded5ef6ad6 in QQuickWindowPrivate::updateDirtyNodes (this=this@entry=0x194b2e0) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/quick/items/qquickwindow.cpp:2830
#22 0x00007fded5ef7a80 in QQuickWindowPrivate::syncSceneGraph (this=0x194b2e0) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/quick/items/qquickwindow.cpp:419
#23 0x00007fded5fd7fdc in QQuickRenderControl::sync (this=<optimized out>) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/quick/items/qquickrendercontrol.cpp:272
#24 0x00007fdebab6e856 in operator() (__closure=0x199b7a0) at /usr/src/debug/kwin-5.7.3/plugins/kdecorations/aurorae/src/aurorae.cpp:362
#25 call (arg=<optimized out>, f=...) at /usr/include/qt5/QtCore/qobjectdefs_impl.h:501
#26 call<QtPrivate::List<>, void> (arg=<optimized out>, f=...) at /usr/include/qt5/QtCore/qobjectdefs_impl.h:558
#27 QtPrivate::QFunctorSlotObject<Aurorae::Decoration::init()::__lambda17, 0, QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase *, QObject *, void **, bool *) (which=<optimized out>, this_=0x199b790, r=<optimized out>, a=<optimized out>, ret=<optimized out>) at /usr/include/qt5/QtCore/qobject_impl.h:198
#28 0x00007fdedb51fd2c in call (a=0x7fff1c052b30, r=0x249af40, this=0x199b790) at ../../src/corelib/kernel/qobject_impl.h:130
#29 QMetaObject::activate (sender=sender@entry=0xffe580, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3723
#30 0x00007fdedb520277 in QMetaObject::activate (sender=sender@entry=0xffe580, m=m@entry=0x7fdedb93c700 <QTimer::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3602
#31 0x00007fdedb597340 in QTimer::timeout (this=this@entry=0xffe580) at .moc/moc_qtimer.cpp:198
#32 0x00007fdedb52cc62 in QTimer::timerEvent (this=0xffe580, e=<optimized out>) at kernel/qtimer.cpp:254
#33 0x00007fdedb520bc4 in QObject::event (this=0xffe580, e=<optimized out>) at kernel/qobject.cpp:1244
#34 0x00007fdedc1aeafc in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0xffe580, e=0x7fff1c052f70) at kernel/qapplication.cpp:3799
#35 0x00007fdedc1b5a80 in QApplication::notify (this=0x7fff1c053230, receiver=0xffe580, e=0x7fff1c052f70) at kernel/qapplication.cpp:3556
#36 0x00007fdedb4f75f5 in QCoreApplication::notifyInternal2 (receiver=0xffe580, event=event@entry=0x7fff1c052f70) at kernel/qcoreapplication.cpp:988
#37 0x00007fdedb54587e in sendEvent (event=0x7fff1c052f70, receiver=<optimized out>) at ../../src/corelib/kernel/qcoreapplication.h:231
#38 QTimerInfoList::activateTimers (this=this@entry=0xbfe8c0) at kernel/qtimerinfo_unix.cpp:644
#39 0x00007fdedb542bbc in QEventDispatcherUNIXPrivate::activateTimers (this=this@entry=0xbfe820) at kernel/qeventdispatcher_unix.cpp:249
#40 0x00007fdedb543932 in QEventDispatcherUNIX::processEvents (this=<optimized out>, flags=..., flags@entry=...) at kernel/qeventdispatcher_unix.cpp:509
#41 0x00007fdec42f7a9d in QUnixEventDispatcherQPA::processEvents (this=<optimized out>, flags=...) at eventdispatchers/qunixeventdispatcher.cpp:68
#42 0x00007fdedb4f58cb in QEventLoop::exec (this=this@entry=0x7fff1c053130, flags=..., flags@entry=...) at kernel/qeventloop.cpp:210
#43 0x00007fdedb4fd6c6 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1261
#44 0x00007fdedba41f9c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1639
#45 0x00007fdedc1aea55 in QApplication::exec () at kernel/qapplication.cpp:2975
#46 0x00007fdede2c9a3c in kdemain (argc=3, argv=0x7fff1c0533b8) at /usr/src/debug/kwin-5.7.3/main_x11.cpp:466
#47 0x00007fdeddf39b25 in __libc_start_main () from /lib64/libc.so.6
#48 0x00000000004007fe in _start () at ../sysdeps/x86_64/start.S:122

Possible duplicates by query: bug 365726, bug 364259, bug 364008, bug 363312, bug 358369.

Reported using DrKonqi