Ultrix and pty bugs?

[rhare at carina.unm.edu]

The other day I was testing lots of output to a DECstation 3100 from the
network. I had 4 windows open each doing lots of output. (ie. ls -R from /)
I decided that I didn't really want to stop each process (laziness at its
finest) and simply did a quit from the dxsession window.  Next a user logs
into the DECstation.  They open a window and all the output from my process
suddenly appears in their window.  I was unable to break out of the program 
however ps reported my process still running and attached to their pty.  Is
this a problem in the pty driver?  This is the second time I have seen this 
happen.  Has anyone else had this problem?

Thanks,

Robert Hare
rhare at ariel.unm.edu