Bug#908095: Buster: Kwrite crashes while opening a file

Thu, 06 Sep 2018 10:42:45 -0700 

Sep 6, 2018, 12:38 PM by bernha...@mailbox.org:

> Then you could press the reload button in the crash reporting window
> and it should give a better readable stack.
> (That way more likely to attract some maintainer.)
>

OK, one more time after definitely pressing the Reload button. Please see the 
attached file.


Application: KWrite (kwrite), signal: 
Segmentation fault
Using host libthread_db library 
"/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 
0x7fc79c488500 (LWP 14061))]

Thread 5 (Thread 0x7fc792465700 (LWP 
14065)):
#0  0x00007fc7a1bf3e6c in 
pthread_cond_wait@@GLIBC_2.3.2 () from 
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fc79360a90b in ?? () from 
/usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#2  0x00007fc79360a637 in ?? () from 
/usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#3  0x00007fc7a1bedf2a in start_thread 
() from 
/lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007fc7a3458edf in clone () from 
/lib/x86_64-linux-gnu/libc.so.6

Thread 4 (Thread 0x7fc792c66700 (LWP 
14064)):
#0  0x00007fc7a1bf3e6c in 
pthread_cond_wait@@GLIBC_2.3.2 () from 
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fc79360a90b in ?? () from 
/usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#2  0x00007fc79360a637 in ?? () from 
/usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#3  0x00007fc7a1bedf2a in start_thread 
() from 
/lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007fc7a3458edf in clone () from 
/lib/x86_64-linux-gnu/libc.so.6

Thread 3 (Thread 0x7fc799e6e700 (LWP 
14063)):
#0  0x00007fc7a344e739 in poll () from 
/lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fc7a089a439 in ?? () from 
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc7a089a54c in 
g_main_context_iteration () from 
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc7a395e23b in 
QEventDispatcherGlib::processEvents 
(this=0x7fc78c000b20, flags=...) at 
kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fc7a390b24b in 
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
 () at 
../../include/QtCore/../../src/corelib/global/qflags.h:140
#5  0x00007fc7a375a176 in 
QThread::exec() () at 
../../include/QtCore/../../src/corelib/global/qflags.h:120
#6  0x00007fc7a2165545 in ?? () from 
/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007fc7a3763d47 in 
QThreadPrivate::start(void*) () at 
thread/qthread_unix.cpp:367
#8  0x00007fc7a1bedf2a in start_thread 
() from 
/lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007fc7a3458edf in clone () from 
/lib/x86_64-linux-gnu/libc.so.6

Thread 2 (Thread 0x7fc79add6700 (LWP 
14062)):
#0  0x00007fc7a344e739 in poll () from 
/lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fc79f6bbcf7 in ?? () from 
/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fc79f6bd90a in 
xcb_wait_for_event () from 
/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fc79c1a0159 in 
QXcbEventReader::run 
(this=0x55aa2c2a4c00) at 
qxcbconnection.h:409
#4  0x00007fc7a3763d47 in 
QThreadPrivate::start(void*) () at 
thread/qthread_unix.cpp:367
#5  0x00007fc7a1bedf2a in start_thread 
() from 
/lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007fc7a3458edf in clone () from 
/lib/x86_64-linux-gnu/libc.so.6

Thread 1 (Thread 0x7fc79c488500 (LWP 
14061)):
[KCrash Handler]
#6  0x00007fc7a3d7e376 in (anonymous 
namespace)::QBidiAlgorithm::<lambda(int)>::operator()(int)
 const 
(__closure=__closure@entry=0x7ffe32888110,
 runEnd=runEnd@entry=4083) at 
../../include/QtCore/../../src/corelib/tools/qvarlengtharray.h:132
#7  0x00007fc7a3d8705f in (anonymous 
namespace)::QBidiAlgorithm::generateDirectionalRuns
 (runs=..., isolatePairs=..., 
this=0x7ffe328880f0) at 
text/qtextengine.cpp:516
#8  (anonymous 
namespace)::QBidiAlgorithm::resolveExplicitLevels
 (runs=..., this=0x7ffe328880f0) at 
text/qtextengine.cpp:533
#9  (anonymous 
namespace)::QBidiAlgorithm::process 
(this=0x7ffe328880f0) at 
text/qtextengine.cpp:1065
#10 QTextEngine::itemize 
(this=0x55aa2c84ae60) at 
text/qtextengine.cpp:2031
#11 0x00007fc7a3d8f99c in 
QTextLayout::beginLayout 
(this=this@entry=0x55aa2c8f1ad0) at 
text/qtextlayout.cpp:648
#12 0x00007fc7a4dc63c6 in 
KateRenderer::layoutLine 
(this=0x55aa2c4954c0, lineLayout=..., 
maxwidth=1679, cacheLayout=<optimized 
out>) at 
./src/render/katerenderer.cpp:1014
#13 0x00007fc7a4dcb881 in 
KateLayoutCache::line 
(this=this@entry=0x55aa2c318ba0, 
realLine=realLine@entry=2, 
virtualLine=virtualLine@entry=2) at 
/usr/include/c++/8/bits/atomic_base.h:295
#14 0x00007fc7a4dccb21 in 
KateLayoutCache::updateViewCache 
(this=this@entry=0x55aa2c318ba0, 
startPos=..., 
newViewLineCount=newViewLineCount@entry=66,
 
viewLinesScrolled=viewLinesScrolled@entry=0)
 at ./src/render/katelayoutcache.cpp:282
#15 0x00007fc7a4e12f2a in 
KateViewInternal::doUpdateView 
(this=this@entry=0x55aa2c3e3930, 
changed=<optimized out>, 
changed@entry=true, 
viewLinesScrolled=viewLinesScrolled@entry=0)
 at 
./src/include/ktexteditor/cursor.h:98
#16 0x00007fc7a4e13214 in 
KateViewInternal::updateView 
(this=0x55aa2c3e3930, 
changed=changed@entry=true, 
viewLinesScrolled=viewLinesScrolled@entry=0)
 at ./src/view/kateviewinternal.cpp:609
#17 0x00007fc7a4dfd196 in 
KTextEditor::ViewPrivate::updateView 
(this=0x55aa2c3a10d0, 
changed=changed@entry=true) at 
./src/view/kateview.cpp:2042
#18 0x00007fc7a4e0c39f in 
KTextEditor::ViewPrivate::updateDocumentConfig
 (this=<optimized out>) at 
./src/view/kateview.cpp:1900
#19 0x00007fc7a4d6f72c in 
KTextEditor::DocumentPrivate::updateConfig
 (this=0x55aa2c30b7f0) at 
./src/document/katedocument.cpp:4422
#20 0x00007fc7a4e51dbd in 
KateDocumentConfig::updateConfig 
(this=0x55aa2c3102a0) at 
./src/utils/kateconfig.cpp:431
#21 0x00007fc7a4e4b72b in 
KateConfig::configEnd 
(this=0x55aa2c3102a0) at 
./src/utils/kateconfig.cpp:67
#22 KateDocumentConfig::setEncoding 
(this=this@entry=0x55aa2c3102a0, 
encoding=...) at 
./src/utils/kateconfig.cpp:937
#23 0x00007fc7a4d8aafe in 
KateBuffer::openFile 
(this=this@entry=0x55aa2c495ed0, 
m_file=..., 
enforceTextCodec=enforceTextCodec@entry=false)
 at 
/usr/include/x86_64-linux-gnu/qt5/QtCore/qarraydata.h:255
#24 0x00007fc7a4d81e2f in 
KTextEditor::DocumentPrivate::openFile 
(this=0x55aa2c30b7f0) at 
./src/document/katedocument.cpp:2253
#25 0x00007fc7a4bd5a21 in 
KParts::ReadOnlyPartPrivate::openLocalFile
 (this=this@entry=0x55aa2c310a00) at 
./src/readonlypart.cpp:190
#26 0x00007fc7a4bd69b6 in 
KParts::ReadOnlyPart::openUrl 
(this=this@entry=0x55aa2c30b7f0, 
url=...) at ./src/readonlypart.cpp:153
#27 0x00007fc7a4d764d1 in 
KTextEditor::DocumentPrivate::openUrl 
(this=0x55aa2c30b7f0, url=...) at 
./src/document/katedocument.cpp:2647
#28 0x000055aa2a9eedea in 
KWrite::loadURL 
(this=this@entry=0x55aa2c3066c0, 
url=...) at ./kwrite/kwrite.cpp:203
#29 0x000055aa2a9f1148 in 
KWrite::slotOpen (this=0x55aa2c3066c0, 
url=...) at ./kwrite/kwrite.cpp:267
#30 0x000055aa2a9f12e2 in 
KWrite::slotOpen (this=0x55aa2c3066c0) 
at ./kwrite/kwrite.cpp:253
#31 0x00007fc7a39357bb in 
QMetaObject::activate(QObject*, int, 
int, void**) () at 
kernel/qobject.cpp:3771
#32 0x00007fc7a3935dd7 in 
QMetaObject::activate 
(sender=sender@entry=0x55aa2c637b60, 
m=m@entry=0x7fc7a472e840 
<QAction::staticMetaObject>, 
local_signal_index=local_signal_index@entry=1,
 argv=argv@entry=0x7ffe3288d460) at 
kernel/qobject.cpp:3633
#33 0x00007fc7a425eef2 in 
QAction::triggered 
(this=this@entry=0x55aa2c637b60, 
_t1=<optimized out>) at 
.moc/moc_qaction.cpp:376
#34 0x00007fc7a4261500 in 
QAction::activate (this=0x55aa2c637b60, 
event=<optimized out>) at 
kernel/qaction.cpp:1167
#35 0x00007fc7a434cd1d in 
QAbstractButtonPrivate::click 
(this=0x55aa2c6a5670) at 
widgets/qabstractbutton.cpp:397
#36 0x00007fc7a434cf55 in 
QAbstractButton::mouseReleaseEvent 
(this=0x55aa2c6a15c0, e=0x7ffe3288d930) 
at widgets/qabstractbutton.cpp:1011
#37 0x00007fc7a4436caa in 
QToolButton::mouseReleaseEvent 
(this=<optimized out>, e=<optimized 
out>) at widgets/qtoolbutton.cpp:622
#38 0x00007fc7a42a37d8 in 
QWidget::event (this=0x55aa2c6a15c0, 
event=0x7ffe3288d930) at 
kernel/qwidget.cpp:8919
#39 0x00007fc7a434e193 in 
QAbstractButton::event 
(this=this@entry=0x55aa2c6a15c0, 
e=e@entry=0x7ffe3288d930) at 
widgets/qabstractbutton.cpp:968
#40 0x00007fc7a4436d53 in 
QToolButton::event 
(this=0x55aa2c6a15c0, 
event=0x7ffe3288d930) at 
widgets/qtoolbutton.cpp:985
#41 0x00007fc7a42654a1 in 
QApplicationPrivate::notify_helper 
(this=this@entry=0x55aa2c2b38d0, 
receiver=receiver@entry=0x55aa2c6a15c0, 
e=e@entry=0x7ffe3288d930) at 
kernel/qapplication.cpp:3727
#42 0x00007fc7a426cd28 in 
QApplication::notify(QObject*, QEvent*) 
() at kernel/qapplication.cpp:3203
#43 0x00007fc7a390c579 in 
QCoreApplication::notifyInternal2(QObject*,
 QEvent*) () at 
../../include/QtCore/5.11.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:307
#44 0x00007fc7a426c029 in 
QCoreApplication::sendEvent 
(event=<optimized out>, 
receiver=<optimized out>) at 
../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#45 QApplicationPrivate::sendMouseEvent 
(receiver=receiver@entry=0x55aa2c6a15c0,
 event=event@entry=0x7ffe3288d930, 
alienWidget=alienWidget@entry=0x55aa2c6a15c0,
 nativeWidget=0x55aa2c3066c0, 
buttonDown=buttonDown@entry=0x7fc7a475d870
 <qt_button_down>, 
lastMouseReceiver=..., 
spontaneous=true) at 
kernel/qapplication.cpp:2695
#46 0x00007fc7a42be304 in 
QWidgetWindow::handleMouseEvent(QMouseEvent*)
 () at 
/usr/include/c++/8/bits/atomic_base.h:390
#47 0x00007fc7a42c0e8e in 
QWidgetWindow::event 
(this=0x55aa2c6acf50, 
event=0x7ffe3288dd30) at 
kernel/qwidgetwindow.cpp:280
#48 0x00007fc7a42654a1 in 
QApplicationPrivate::notify_helper 
(this=this@entry=0x55aa2c2b38d0, 
receiver=receiver@entry=0x55aa2c6acf50, 
e=e@entry=0x7ffe3288dd30) at 
kernel/qapplication.cpp:3727
#49 0x00007fc7a426cae0 in 
QApplication::notify(QObject*, QEvent*) 
() at kernel/qapplication.cpp:3486
#50 0x00007fc7a390c579 in 
QCoreApplication::notifyInternal2(QObject*,
 QEvent*) () at 
../../include/QtCore/5.11.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:307
#51 0x00007fc7a3cab53b in 
QCoreApplication::sendSpontaneousEvent 
(event=0x7ffe3288dd30, 
receiver=0x55aa2c6acf50) at 
../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:237
#52 
QGuiApplicationPrivate::processMouseEvent
 (e=0x55aa2c7303a0) at 
kernel/qguiapplication.cpp:2081
#53 0x00007fc7a3cad435 in 
QGuiApplicationPrivate::processWindowSystemEvent
 (e=e@entry=0x55aa2c7303a0) at 
kernel/qguiapplication.cpp:1816
#54 0x00007fc7a3c87b6b in 
QWindowSystemInterface::sendWindowSystemEvents
 (flags=...) at 
kernel/qwindowsysteminterface.cpp:1032
#55 0x00007fc79c231e5b in 
QPAEventDispatcherGlib::processEvents 
(this=0x55aa2c2faab0, flags=...) at 
qeventdispatcher_glib.cpp:70
#56 0x00007fc7a390b24b in 
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
 () at 
../../include/QtCore/../../src/corelib/global/qflags.h:140
#57 0x00007fc7a39133c2 in 
QCoreApplication::exec() () at 
../../include/QtCore/../../src/corelib/global/qflags.h:120
#58 0x000055aa2a9ecd6d in main 
(argc=<optimized out>, argv=<optimized 
out>) at ./kwrite/main.cpp:294

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