[konsole] [Bug 436676] New: Crash on window resize

[pho]

https://bugs.kde.org/show_bug.cgi?id=436676

            Bug ID: 436676
           Summary: Crash on window resize
           Product: konsole
           Version: 21.04.0
          Platform: Archlinux Packages
                OS: Linux
            Status: REPORTED
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: konsole-devel at kde.org
          Reporter: phofin at gmail.com
  Target Milestone: ---

SUMMARY

I could reproduce a crash just opening VIM and resizing the window dragging the
bottom-right corner to make the window really small, then going big again

Only seems to happen in fast motions, going slowly doesnt crash


STEPS TO REPRODUCE
1. Open konsole
2. run vim/micro
3. Drag the botton-right corner to make the window as small as possible, then
drag it to make it as big as possible, doing fast repetitions (going slowly
doesnt crash to me)

OBSERVED RESULT

Core was generated by `konsole'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007ff460b33b84 in ?? () from /usr/lib/libkonsoleprivate.so.21
[Current thread is 1 (Thread 0x7ff45b27d840 (LWP 60028))]
(gdb) bt
#0  0x00007ff460b33b84 in ?? () from /usr/lib/libkonsoleprivate.so.21
#1  0x00007ff460b328d4 in Konsole::Screen::displayCharacter(unsigned int) ()
from /usr/lib/libkonsoleprivate.so.21
#2  0x00007ff460b47743 in ?? () from /usr/lib/libkonsoleprivate.so.21
#3  0x00007ff460b21a1a in Konsole::Emulation::receiveData(char const*, int) ()
from /usr/lib/libkonsoleprivate.so.21
#4  0x00007ff4610f59e6 in ?? () from /usr/lib/libQt5Core.so.5
#5  0x00007ff460b131be in Konsole::Pty::receivedData(char const*, int) () from
/usr/lib/libkonsoleprivate.so.21
#6  0x00007ff460b29ed7 in Konsole::Pty::dataReceived() () from
/usr/lib/libkonsoleprivate.so.21
#7  0x00007ff4610f59e6 in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007ff45eb7613d in ?? () from /usr/lib/libKF5Pty.so.5
#9  0x00007ff45eb76ae9 in ?? () from /usr/lib/libKF5Pty.so.5
#10 0x00007ff4610f5a20 in ?? () from /usr/lib/libQt5Core.so.5
#11 0x00007ff4610f8fe5 in QSocketNotifier::activated(int,
QSocketNotifier::QPrivateSignal) () from /usr/lib/libQt5Core.so.5
#12 0x00007ff4610f9798 in QSocketNotifier::event(QEvent*) () from
/usr/lib/libQt5Core.so.5
#13 0x00007ff460044762 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /usr/lib/libQt5Widgets.so.5
#14 0x00007ff4610be68a in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /usr/lib/libQt5Core.so.5
#15 0x00007ff461117da6 in ?? () from /usr/lib/libQt5Core.so.5
#16 0x00007ff45ec6702c in g_main_context_dispatch () from
/usr/lib/libglib-2.0.so.0
#17 0x00007ff45ecbab59 in ?? () from /usr/lib/libglib-2.0.so.0
#18 0x00007ff45ec64781 in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#19 0x00007ff461117191 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#20 0x00007ff4610bcfec in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#21 0x00007ff4610c54a4 in QCoreApplication::exec() () from
/usr/lib/libQt5Core.so.5
#22 0x00007ff46141fd50 in kdemain () from /usr/lib/libkdeinit5_konsole.so
#23 0x00007ff460c62b25 in __libc_start_main () from /usr/lib/libc.so.6
#24 0x0000555b41d0d05e in ?? ()
(gdb) 


SOFTWARE/OS VERSIONS

KDE Frameworks Version: 5.81
Qt Version: 5.12.2

ADDITIONAL INFORMATION

I'm using dwm without a DE, just in case this relevant for the resizing window
stuff

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