https://bugs.kde.org/show_bug.cgi?id=472783
Bug ID: 472783
Summary: Kate crashes when quickly scrolling while comparing
files
Classification: Applications
Product: kate
Version: 22.12.3
Platform: Debian testing
OS: Linux
Status: REPORTED
Severity: crash
Priority: NOR
Component: general
Assignee: kwrite-bugs-n...@kde.org
Reporter: blacklotus+kdeb...@powernein.com
Target Milestone: ---
Created attachment 160614
--> https://bugs.kde.org/attachment.cgi?id=160614&action=edit
first file to compare
SUMMARY
***
NOTE: If you are reporting a crash, please try to attach a backtrace with debug
symbols.
See
https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports
***
Thread 1 "kate" received signal SIGSEGV, Segmentation fault.
0x00007ffff6e44f44 in QVector<QScriptLine>::at (i=0, this=0x0) at
../../include/QtCore/../../src/corelib/tools/qvector.h:450
Download failed: Invalid argument. Continuing without source file
./src/gui/../../include/QtCore/../../src/corelib/tools/qvector.h.
450 ../../include/QtCore/../../src/corelib/tools/qvector.h: No such file or
directory.
(gdb) bt
#0 0x00007ffff6e44f44 in QVector<QScriptLine>::at (i=0, this=0x0) at
../../include/QtCore/../../src/corelib/tools/qvector.h:450
#1 QTextLine::naturalTextRect (this=this@entry=0x7fffffffcba0) at
text/qtextlayout.cpp:1443
#2 0x00007ffff7f1baa4 in DiffEditor::paintEvent (this=<optimized out>,
e=<optimized out>) at ./apps/lib/diff/diffeditor.cpp:324
#3 0x00007ffff75a4dc8 in QWidget::event (this=this@entry=0x555555debe20,
event=event@entry=0x7fffffffce30) at kernel/qwidget.cpp:9045
#4 0x00007ffff76505fe in QFrame::event (this=0x555555debe20, e=0x7fffffffce30)
at widgets/qframe.cpp:550
#5 0x00007ffff66b21db in
QCoreApplicationPrivate::sendThroughObjectEventFilters
(receiver=receiver@entry=0x555556d646b0,
event=event@entry=0x7fffffffce30) at kernel/qcoreapplication.cpp:1190
#6 0x00007ffff7562f5e in QApplicationPrivate::notify_helper (this=<optimized
out>, receiver=0x555556d646b0, e=0x7fffffffce30)
at kernel/qapplication.cpp:3634
#7 0x00007ffff66b2458 in QCoreApplication::notifyInternal2
(receiver=0x555556d646b0, event=0x7fffffffce30)
at kernel/qcoreapplication.cpp:1064
#8 0x00007ffff66b262e in QCoreApplication::sendSpontaneousEvent
(receiver=<optimized out>, event=<optimized out>)
at kernel/qcoreapplication.cpp:1474
#9 0x00007ffff759d085 in QWidgetPrivate::sendPaintEvent
(this=this@entry=0x555556caa860, toBePainted=...) at kernel/qwidget.cpp:5479
#10 0x00007ffff759d999 in QWidgetPrivate::drawWidget
(this=this@entry=0x555556caa860, pdev=0x555555f02a90, rgn=..., offset=...,
flags=flags@entry=..., sharedPainter=sharedPainter@entry=0x0,
repaintManager=<optimized out>) at kernel/qwidget.cpp:5429
#11 0x00007ffff7574221 in QWidgetRepaintManager::paintAndFlush
(this=0x555555d65e30) at kernel/qwidgetrepaintmanager.cpp:1016
#12 0x00007ffff75a5088 in QWidget::event (this=this@entry=0x555555931640,
event=event@entry=0x555557024ad0) at kernel/qwidget.cpp:8990
#13 0x00007ffff76b989d in QMainWindow::event (this=this@entry=0x555555931640,
event=event@entry=0x555557024ad0)
at widgets/qmainwindow.cpp:1341
#14 0x00007ffff69de605 in KMainWindow::event (this=this@entry=0x555555931640,
ev=ev@entry=0x555557024ad0) at ./src/kmainwindow.cpp:961
#15 0x00007ffff6a1f4a7 in KXmlGuiWindow::event (this=0x555555931640,
ev=0x555557024ad0) at ./src/kxmlguiwindow.cpp:220
#16 0x00007ffff7562f6e in QApplicationPrivate::notify_helper (this=<optimized
out>, receiver=0x555555931640, e=0x555557024ad0)
at kernel/qapplication.cpp:3640
#17 0x00007ffff66b2458 in QCoreApplication::notifyInternal2
(receiver=0x555555931640, event=0x555557024ad0)
at kernel/qcoreapplication.cpp:1064
#18 0x00007ffff66b261e in QCoreApplication::sendEvent (receiver=<optimized
out>, event=<optimized out>)
at kernel/qcoreapplication.cpp:1462
#19 0x00007ffff66b53e1 in QCoreApplicationPrivate::sendPostedEvents
(receiver=0x0, event_type=0, data=0x55555556c4b0)
at kernel/qcoreapplication.cpp:1821
#20 0x00007ffff66b5868 in QCoreApplication::sendPostedEvents
(receiver=<optimized out>, event_type=<optimized out>)
at kernel/qcoreapplication.cpp:1680
#21 0x00007ffff670a903 in postEventSourceDispatch (s=0x555555663280) at
kernel/qeventdispatcher_glib.cpp:277
#22 0x00007ffff45185e5 in g_main_dispatch (context=0x7fffe8000ee0) at
../../../glib/gmain.c:3460
#23 g_main_context_dispatch (context=context@entry=0x7fffe8000ee0) at
../../../glib/gmain.c:4200
#24 0x00007ffff45188e8 in g_main_context_iterate
(context=context@entry=0x7fffe8000ee0, block=block@entry=1,
dispatch=dispatch@entry=1,
self=<optimized out>) at ../../../glib/gmain.c:4276
#25 0x00007ffff451897c in g_main_context_iteration (context=0x7fffe8000ee0,
may_block=1) at ../../../glib/gmain.c:4343
#26 0x00007ffff6709fe6 in QEventDispatcherGlib::processEvents
(this=0x555555676730, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#27 0x00007ffff66b0edb in QEventLoop::exec (this=this@entry=0x7fffffffd6c0,
flags=..., flags@entry=...)
--Type <RET> for more, q to quit, c to continue without paging--c
at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#28 0x00007ffff66b9036 in QCoreApplication::exec () at
../../include/QtCore/../../src/corelib/global/qflags.h:121
#29 0x00007ffff6d3167c in QGuiApplication::exec () at
kernel/qguiapplication.cpp:1863
#30 0x00007ffff7562ee5 in QApplication::exec () at kernel/qapplication.cpp:2832
#31 0x000055555555ce33 in main (argc=<optimized out>, argv=<optimized out>) at
./apps/kate/main.cpp:603
STEPS TO REPRODUCE
1. Open both files
2. Right click other file's tab -> compare with active document
3. quickly scroll upward with mouse wheel
OBSERVED RESULT
Kate crashes
EXPECTED RESULT
Kate scrolls to the top of the files
SOFTWARE/OS VERSIONS
Windows:
macOS:
Linux/KDE Plasma: 6.4.0-1-amd64
(available in About System)
KDE Plasma Version: 5.27.5
KDE Frameworks Version: 5.107.0
Qt Version: 5.15.10
ADDITIONAL INFORMATION
link to second file
https://pastebin.com/9vr6Hcyk
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