You've got to be joking. Irix is the Windows ME of *nix operating systems. It was a running joke with everyone I ever met that was using an SGI box. We used to get os/tool distributions every couple of weeks, ostensibly 'updates to increase the productivity of the system' - but in fact emergency crash patches.
Ignoring the fact that I've seen SunOS/Solaris core dump its own utilities and X windows implementation HUNDREDS of times, Irix 5.x and 6.x crashed all the time during the whole of the 90's (I haven't used it since 1999.)
I'm sorry, but if you didn't experience an Irix crash daily in the 90's then you weren't using your IR/IR2/Indy/O2/Octane for much more than running a single tool.
It is impossible for you to have ever used an Irix 5.0 machine and not experience routine crashing.