Konsole keeps crashing again and again randomly once in a while,
I have no idea why.

Arch is fully up-to-date.

Backtrace:

$ gdb konsole core.konsole.15490
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Reading symbols from konsole...(no debugging symbols found)...done.
[New LWP 15490]
[New LWP 15491]
[New LWP 15493]

warning: Could not load shared library symbols for linux-vdso.so.1.
Do you need "set solib-search-path" or "set sysroot"?
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
Core was generated by `/usr/bin/konsole'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x00007f7b70a5bac0 in ?? () from /usr/lib/libxcb.so.1
(gdb) bt
#0 0x00007f7b70a5bac0 in ?? () from /usr/lib/libxcb.so.1
#1 0x00007f7b70a5c314 in ?? () from /usr/lib/libxcb.so.1
#2 0x00007f7b70a5c411 in xcb_wait_for_reply () from /usr/lib/libxcb.so.1
#3 0x00007f7b72680727 in _XReply () from /usr/lib/libX11.so.6
#4 0x00007f7b65c8a602 in XIQueryDevice () from /usr/lib/libXi.so.6
#5 0x00007f7b63feb609 in ?? () from /usr/lib/qt/plugins/platforms/libqxcb.so
#6 0x00007f7b63fee9db in ?? () from /usr/lib/qt/plugins/platforms/libqxcb.so
#7 0x00007f7b63fcd467 in ?? () from /usr/lib/qt/plugins/platforms/libqxcb.so
#8 0x00007f7b63fcd9e3 in ?? () from /usr/lib/qt/plugins/platforms/libqxcb.so
#9 0x00007f7b75b5aae1 in QObject::event(QEvent*) () from /usr/lib/libQt5Core.so.5
#10 0x00007f7b767eb62c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#11 0x00007f7b767f0d10 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#12 0x00007f7b75b2957b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQt5Core.so.5
#13 0x00007f7b75b2b6b7 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/libQt5Core.so.5
#14 0x00007f7b75b808f3 in ?? () from /usr/lib/libQt5Core.so.5
#15 0x00007f7b6fcfd9fd in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#16 0x00007f7b6fcfdce0 in ?? () from /usr/lib/libglib-2.0.so.0
#17 0x00007f7b6fcfdd8c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#18 0x00007f7b75b80cff in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#19 0x00007f7b75b26ffa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#20 0x00007f7b75b2ea4c in QCoreApplication::exec() () from /usr/lib/libQt5Core.so.5
#21 0x00007f7b79919a99 in kdemain () from /usr/lib/libkdeinit5_konsole.so
#22 0x00007f7b79574790 in __libc_start_main () from /usr/lib/libc.so.6
#23 0x0000000000400779 in _start ()
(gdb) info threads
Id Target Id Frame
3 Thread 0x7f7b5b90d700 (LWP 15493) 0x00007f7b79634b03 in select () from /usr/lib/libc.so.6
2 Thread 0x7f7b61e75700 (LWP 15491) 0x00007f7b79632e8d in poll () from /usr/lib/libc.so.6
* 1 Thread 0x7f7b79c92800 (LWP 15490) 0x00007f7b70a5bac0 in ?? () from /usr/lib/libxcb.so.1