Bug 414748

Application: konsole (19.04.3)

Qt Version: 5.12.4
Frameworks Version: 5.62.0
Operating System: Linux 5.3.0-23-generic x86_64
Distribution: Ubuntu 19.10

-- Information about the crash:
- What I was doing when the application crashed: I had some 4-5 tabs open, from 3 of which I had ssh connections active to different servers, when all of a sudden konsole crashed. There is no definite way to reproduce it though, the behavior is intermittent.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Konsole (konsole), signal: Segmentation fault
Using host libthread_db library "/usr/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f2d0f43efc0 (LWP 22781))]

Thread 4 (Thread 0x7f2cf7821700 (LWP 26940)):
#0  0x00007f2d14c022ac in read () from /usr/lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f2d0f9e2955 in pa_read () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-13.0.so
#2  0x00007f2d117ce406 in pa_mainloop_prepare () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#3  0x00007f2d117ceea4 in pa_mainloop_iterate () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007f2d117cef60 in pa_mainloop_run () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007f2d117dd10d in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007f2d0fa1137c in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-13.0.so
#7  0x00007f2d1219a669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#8  0x00007f2d14c13323 in clone () from /usr/lib/x86_64-linux-gnu/libc.so.6

Thread 3 (Thread 0x7f2d067e7700 (LWP 22784)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5594c46d2528) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5594c46d24d8, cond=0x5594c46d2500) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5594c46d2500, mutex=0x5594c46d24d8) at pthread_cond_wait.c:638
#3  0x00007f2d06e0e97b in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007f2d06e0e59b in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007f2d1219a669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#6  0x00007f2d14c13323 in clone () from /usr/lib/x86_64-linux-gnu/libc.so.6

Thread 2 (Thread 0x7f2d0cc54700 (LWP 22783)):
#0  0x00007f2d14c06c2f in poll () from /usr/lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f2d1197ba3e in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2d1197bb73 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2d133db6c3 in QEventDispatcherGlib::processEvents (this=0x7f2d00000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f2d1338263b in QEventLoop::exec (this=this@entry=0x7f2d0cc53d70, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#5  0x00007f2d131bba75 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#6  0x00007f2d128d5efa in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f2d131bccc2 in QThreadPrivate::start (arg=0x7f2d12958d80) at thread/qthread_unix.cpp:361
#8  0x00007f2d1219a669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007f2d14c13323 in clone () from /usr/lib/x86_64-linux-gnu/libc.so.6

Thread 1 (Thread 0x7f2d0f43efc0 (LWP 22781)):
[KCrash Handler]
#6  QListData::size (this=0x7f2d080009e8) at ../../include/QtCore/../../src/corelib/tools/qlist.h:113
#7  QList<QWidget*>::indexOf (from=0, t=@0x7ffe0402a0f0: 0x5594c4b57af0, this=0x7f2d080009e8) at ../../include/QtCore/../../src/corelib/tools/qlist.h:975
#8  QList<QWidget*>::removeAll (this=0x7f2d080009e8, _t=@0x7ffe0402a0f0: 0x5594c4b57af0) at ../../include/QtCore/../../src/corelib/tools/qlist.h:883
#9  0x00007f2d13dd11fa in QWidget::removeAction (this=0x5594c4b57af0, action=<optimized out>) at kernel/qwidget.cpp:3350
#10 0x00007f2d14a5a15c in Konsole::SessionController::showDisplayContextMenu(QPoint const&) () from /usr/lib/x86_64-linux-gnu/libkonsoleprivate.so.19
#11 0x00007f2d133af5c8 in QtPrivate::QSlotObjectBase::call (a=0x7ffe0402a2e0, r=0x5594c4a619f0, this=0x5594c4a594f0) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:394
#12 QMetaObject::activate (sender=0x5594c4e40030, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3781
#13 0x00007f2d14a98759 in Konsole::TerminalDisplay::configureRequest(QPoint const&) () from /usr/lib/x86_64-linux-gnu/libkonsoleprivate.so.19
#14 0x00007f2d14a78708 in Konsole::TerminalDisplay::mousePressEvent(QMouseEvent*) () from /usr/lib/x86_64-linux-gnu/libkonsoleprivate.so.19
#15 0x00007f2d13ddaaac in QWidget::event (this=0x5594c4e40030, event=0x7ffe0402a840) at kernel/qwidget.cpp:8941
#16 0x00007f2d13d97a86 in QApplicationPrivate::notify_helper (this=this@entry=0x5594c4680250, receiver=receiver@entry=0x5594c4e40030, e=e@entry=0x7ffe0402a840) at kernel/qapplication.cpp:3737
#17 0x00007f2d13da1053 in QApplication::notify (this=<optimized out>, receiver=0x5594c4e40030, e=0x7ffe0402a840) at kernel/qapplication.cpp:3197
#18 0x00007f2d13383a9a in QCoreApplication::notifyInternal2 (receiver=0x5594c4e40030, event=0x7ffe0402a840) at ../../include/QtCore/../../src/corelib/kernel/qobject.h:142
#19 0x00007f2d13da0157 in QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x5594c4e40030, event=event@entry=0x7ffe0402a840, alienWidget=alienWidget@entry=0x5594c4e40030, nativeWidget=0x5594c4753930, buttonDown=buttonDown@entry=0x7f2d142c58f0 <qt_button_down>, lastMouseReceiver=..., spontaneous=true, onlyDispatchEnterLeave=false) at kernel/qapplication.cpp:2683
#20 0x00007f2d13df614d in QWidgetWindow::handleMouseEvent (this=0x5594c4757a60, event=0x7ffe0402acc0) at /usr/include/c++/9/bits/atomic_base.h:413
#21 0x00007f2d13df8fdc in QWidgetWindow::event (event=0x7ffe0402acc0, this=0x5594c4757a60) at kernel/qwidgetwindow.cpp:281
#22 QWidgetWindow::event (this=0x5594c4757a60, event=0x7ffe0402acc0) at kernel/qwidgetwindow.cpp:224
#23 0x00007f2d13d97a86 in QApplicationPrivate::notify_helper (this=this@entry=0x5594c4680250, receiver=receiver@entry=0x5594c4757a60, e=e@entry=0x7ffe0402acc0) at kernel/qapplication.cpp:3737
#24 0x00007f2d13da0e00 in QApplication::notify (this=0x5594c4680050, receiver=0x5594c4757a60, e=0x7ffe0402acc0) at kernel/qapplication.cpp:3483
#25 0x00007f2d13383a9a in QCoreApplication::notifyInternal2 (receiver=0x5594c4757a60, event=0x7ffe0402acc0) at ../../include/QtCore/../../src/corelib/kernel/qobject.h:142
#26 0x00007f2d1376bd73 in QGuiApplicationPrivate::processMouseEvent (e=e@entry=0x5594c4ffdcd0) at kernel/qguiapplication.cpp:2107
#27 0x00007f2d1376d5fb in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x5594c4ffdcd0) at kernel/qguiapplication.cpp:1842
#28 0x00007f2d1374726b in QWindowSystemInterface::sendWindowSystemEvents (flags=flags@entry=...) at kernel/qwindowsysteminterface.cpp:1151
#29 0x00007f2d0ed8028e in xcbSourceDispatch (source=<optimized out>) at qxcbeventdispatcher.cpp:105
#30 0x00007f2d1197b84d in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#31 0x00007f2d1197bad0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#32 0x00007f2d1197bb73 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007f2d133db6a5 in QEventDispatcherGlib::processEvents (this=0x5594c46a2390, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#34 0x00007f2d1338263b in QEventLoop::exec (this=this@entry=0x7ffe0402b060, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#35 0x00007f2d1338a3a6 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#36 0x00007f2d13760dd0 in QGuiApplication::exec () at kernel/qguiapplication.cpp:1784
#37 0x00007f2d13d979f9 in QApplication::exec () at kernel/qapplication.cpp:2893
#38 0x00007f2d14d0d13d in kdemain (argc=<optimized out>, argv=<optimized out>) at ./src/main.cpp:210
#39 0x00007f2d14b181e3 in __libc_start_main () from /usr/lib/x86_64-linux-gnu/libc.so.6
#40 0x00005594c346b09e in _start ()
[Inferior 1 (process 22781) detached]

Possible duplicates by query: bug 408603.

Reported using DrKonqi