Comment 4 for bug 1497179

I too am seeing the error message.

The last two lines in my dmesg on startup:

[ 25.178543] do_general_protection: 24 callbacks suppressed
[ 25.178546] traps: QXcbEventReader[1320] general protection ip:7f2fa247c1cb sp:7f2f98a29bf0 error:0 in libc-2.21.so[7f2fa23fd000+1c0000]

spadge@Venus:~$ uname -a
Linux Venus 4.2.0-18-generic #22-Ubuntu SMP Fri Nov 6 18:25:50 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

Kubuntu 15.10 64-bit

Using:
KDE Frameworks 5.15.0
Qt 5.4.2 (built against 5.4.2)
The xcb windowing system