[Wayland] plasma crashes and cannot attach gdb to kwin_wayland

[Martin Gräßlin]

Am 2017-04-13 16:08, schrieb Germano Massullo:
> Il 13/04/2017 13:12, David Edmundson ha scritto:
>> ​"echo 0 | sudo tee /proc/sys/kernel/yama/ptrace_scope"  (or run GDB
>> as root)
>> 
>> David
> As root in tty3 I attached GDB to kwin_wayland and as soon I got back 
> to
> the graphical session, the system got stuck and I could not neither
> return back to tty3, so I had to use Magic SysRq key to restart the 
> system.
> The wiki says to try to use SSH, but it would be useless too since I am
> not able to use the graphical session if kwin_wayland is attached to 
> GDB

Of course you need to continue once you attached gdb. I'm not sure what 
you want to achieve but debugging the running display manager on the 
same system - well it's even more impossible than debugging the running 
window manager on X11. I'm working with nested kwin_wayland running in 
gdb to do debugging.

Cheers
Martin