> That was clearly a bug on the X11 server side, too. A server should be built such that it's impossible for a client to crash it. Not sure X11 itself was to b

> That was clearly a bug on the X11 server side, too. A server should be built such that it's impossible for a client to crash it. Not sure X11 itself was to blame for most crashes. GPU drivers tended to be hit or miss in the past and if I remember correctly even Microsoft had enough of that mess at some point and started to isolate them from its otherwise monolithic kernel, just so it could at least recover the session instead of blue screening.