[konsole] [Bug 385286] New: Konsole segfault

Samantha McVey bugzilla_noreply at kde.org
Mon Oct 2 06:30:28 UTC 2017 

https://bugs.kde.org/show_bug.cgi?id=385286

            Bug ID: 385286
           Summary: Konsole segfault
           Product: konsole
           Version: 17.08.1
          Platform: Gentoo Packages
                OS: Linux
            Status: UNCONFIRMED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: konsole-devel at kde.org
          Reporter: samantham at posteo.net
  Target Milestone: ---

Application: konsole (17.08.1)

Qt Version: 5.7.1
Frameworks Version: 5.38.0
Operating System: Linux 4.12.0-sabayon x86_64
Distribution: "Sabayon Linux amd64 17.10"

-- Information about the crash:
- What I was doing when the application crashed:
 perl -C -E'say
"\x{1F3F4}\x{E0067}\x{E0062}\x{E0065}\x{E006E}\x{E0067}\x{E007F}"'

It is reproducible every time for me. See
https://emojipedia.org/flag-for-england/

The font I have set is Fantasque Sans, though I don't know if that matters. The
perl command above prints out the 'England' flag. It is a new emoji and it's
causing Konsole to crash every time it was seen. Either printing it out with
perl or by using less on the UCD (Unicode emoji data files).

The crash can be reproduced every time.

-- Backtrace:
Application: Konsole (konsole), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f27fd90d840 (LWP 13401))]

Thread 3 (Thread 0x7f27e0f35700 (LWP 13403)):
#0  0x00007f27fd3bf1fd in read () from /lib64/libc.so.6
#1  0x00007f27f4d99570 in g_wakeup_acknowledge () from
/usr/lib64/libglib-2.0.so.0
#2  0x00007f27f4d56572 in g_main_context_check () from
/usr/lib64/libglib-2.0.so.0
#3  0x00007f27f4d56a48 in g_main_context_iterate.isra () from
/usr/lib64/libglib-2.0.so.0
#4  0x00007f27f4d56bac in g_main_context_iteration () from
/usr/lib64/libglib-2.0.so.0
#5  0x00007f27fa08cb1c in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib64/libQt5Core.so.5
#6  0x00007f27fa04389a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib64/libQt5Core.so.5
#7  0x00007f27f9eb696c in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#8  0x00007f27fd98a395 in QDBusConnectionManager::run() () from
/usr/lib64/libQt5DBus.so.5
#9  0x00007f27f9ebac1d in QThreadPrivate::start(void*) () from
/usr/lib64/libQt5Core.so.5
#10 0x00007f27f6a2165c in start_thread () from /lib64/libpthread.so.0
#11 0x00007f27fd3cd4fd in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f27e2c2a700 (LWP 13402)):
#0  0x00007f27fd3c367d in poll () from /lib64/libc.so.6
#1  0x00007f27f6e46852 in _xcb_conn_wait () from /usr/lib64/libxcb.so.1
#2  0x00007f27f6e4853f in xcb_wait_for_event () from /usr/lib64/libxcb.so.1
#3  0x00007f27e495dce9 in QXcbEventReader::run() () from
/usr/lib64/libQt5XcbQpa.so.5
#4  0x00007f27f9ebac1d in QThreadPrivate::start(void*) () from
/usr/lib64/libQt5Core.so.5
#5  0x00007f27f6a2165c in start_thread () from /lib64/libpthread.so.0
#6  0x00007f27fd3cd4fd in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f27fd90d840 (LWP 13401)):
[KCrash Handler]
#6  0x00007f27fa81bf03 in QRegion::~QRegion() () from /usr/lib64/libQt5Gui.so.5
#7  0x00007f27fa7dac49 in QPainterState::~QPainterState() () from
/usr/lib64/libQt5Gui.so.5
#8  0x00007f27fa7cb5c9 in QRasterPaintEngineState::~QRasterPaintEngineState()
() from /usr/lib64/libQt5Gui.so.5
#9  0x00007f27fa7e1f82 in QPainter::end() () from /usr/lib64/libQt5Gui.so.5
#10 0x00007f27fa82d7db in
QImageTextureGlyphCache::fillTexture(QTextureGlyphCache::Coord const&, unsigned
int, QFixed) () from /usr/lib64/libQt5Gui.so.5
#11 0x00007f27fa82c150 in QTextureGlyphCache::fillInPendingGlyphs() () from
/usr/lib64/libQt5Gui.so.5
#12 0x00007f27fa7d0a25 in QRasterPaintEngine::drawCachedGlyphs(int, unsigned
int const*, QFixedPoint const*, QFontEngine*) () from /usr/lib64/libQt5Gui.so.5
#13 0x00007f27fa7d3a4b in QRasterPaintEngine::drawTextItem(QPointF const&,
QTextItem const&) () from /usr/lib64/libQt5Gui.so.5
#14 0x00007f27fa7ed847 in QPainterPrivate::drawTextItem(QPointF const&,
QTextItem const&, QTextEngine*) () from /usr/lib64/libQt5Gui.so.5
#15 0x00007f27fa7ee1c0 in QPainter::drawText(QPointF const&, QString const&,
int, int) () from /usr/lib64/libQt5Gui.so.5
#16 0x00007f27fd05be8e in Konsole::TerminalDisplay::drawCharacters(QPainter&,
QRect const&, QString const&, Konsole::Character const*, bool) () from
/usr/lib64/libkonsoleprivate.so.17
#17 0x00007f27fd05c2c5 in Konsole::TerminalDisplay::drawTextFragment(QPainter&,
QRect const&, QString const&, Konsole::Character const*) () from
/usr/lib64/libkonsoleprivate.so.17
#18 0x00007f27fd062fd7 in Konsole::TerminalDisplay::drawContents(QPainter&,
QRect const&) () from /usr/lib64/libkonsoleprivate.so.17
#19 0x00007f27fd0634b7 in Konsole::TerminalDisplay::paintEvent(QPaintEvent*) ()
from /usr/lib64/libkonsoleprivate.so.17
#20 0x00007f27fab47688 in QWidget::event(QEvent*) () from
/usr/lib64/libQt5Widgets.so.5
#21 0x00007f27fd06638a in Konsole::TerminalDisplay::event(QEvent*) () from
/usr/lib64/libkonsoleprivate.so.17
#22 0x00007f27fab018bc in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /usr/lib64/libQt5Widgets.so.5
#23 0x00007f27fab08808 in QApplication::notify(QObject*, QEvent*) () from
/usr/lib64/libQt5Widgets.so.5
#24 0x00007f27fa044ad8 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /usr/lib64/libQt5Core.so.5
#25 0x00007f27fab4002a in QWidgetPrivate::sendPaintEvent(QRegion const&) ()
from /usr/lib64/libQt5Widgets.so.5
#26 0x00007f27fab4063f in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion
const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from
/usr/lib64/libQt5Widgets.so.5
#27 0x00007f27fab10f7c in QWidgetBackingStore::doSync() () from
/usr/lib64/libQt5Widgets.so.5
#28 0x00007f27fab11241 in QWidgetBackingStore::sync() () from
/usr/lib64/libQt5Widgets.so.5
#29 0x00007f27fab3113f in QWidgetPrivate::syncBackingStore() () from
/usr/lib64/libQt5Widgets.so.5
#30 0x00007f27fab47750 in QWidget::event(QEvent*) () from
/usr/lib64/libQt5Widgets.so.5
#31 0x00007f27fac4106b in QMainWindow::event(QEvent*) () from
/usr/lib64/libQt5Widgets.so.5
#32 0x00007f27fc8fca87 in KMainWindow::event(QEvent*) () from
/usr/lib64/libKF5XmlGui.so.5
#33 0x00007f27fc938c15 in KXmlGuiWindow::event(QEvent*) () from
/usr/lib64/libKF5XmlGui.so.5
#34 0x00007f27fab018bc in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /usr/lib64/libQt5Widgets.so.5
#35 0x00007f27fab08808 in QApplication::notify(QObject*, QEvent*) () from
/usr/lib64/libQt5Widgets.so.5
#36 0x00007f27fa044ad8 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /usr/lib64/libQt5Core.so.5
#37 0x00007f27fa046d5b in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) () from /usr/lib64/libQt5Core.so.5
#38 0x00007f27fa08ca93 in postEventSourceDispatch(_GSource*, int (*)(void*),
void*) () from /usr/lib64/libQt5Core.so.5
#39 0x00007f27f4d5685d in g_main_context_dispatch () from
/usr/lib64/libglib-2.0.so.0
#40 0x00007f27f4d56b08 in g_main_context_iterate.isra () from
/usr/lib64/libglib-2.0.so.0
#41 0x00007f27f4d56bac in g_main_context_iteration () from
/usr/lib64/libglib-2.0.so.0
#42 0x00007f27fa08cb07 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib64/libQt5Core.so.5
#43 0x00007f27fa04389a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib64/libQt5Core.so.5
#44 0x00007f27fa04af6d in QCoreApplication::exec() () from
/usr/lib64/libQt5Core.so.5
#45 0x00007f27fd6ae5cd in kdemain () from /usr/lib64/libkdeinit5_konsole.so
#46 0x00007f27fd2fa954 in __libc_start_main () from /lib64/libc.so.6
#47 0x0000000000400779 in _start ()

Reported using DrKonqi

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