4.2 crashes

[root%cit-vax at sri-unix.UUCP]

From:  Root of All Evil <root at cit-vax>

    We just installed 4.2bsd and have since been getting  crashes  every
few  hours.  These  are  usually  trap  type 9 or 8, i.e. illegal memory
references, and are for the most part in the clist manipulation routines
(as  evidenced  by the "pc =" part of the trap message). Has anyone else
met with these problems in putting up 4.2bsd?
    Another, possibly related, problem is that every once in a  while  a
terminal  (on  a  dz11)  will  just  hang.  "pstat  -t"  says that it is
"awaiting output".  Killing  the  process  on  the  terminal  leaves  it
<exiting>,  presumably waiting for the terminal in a close. It isn't the
dz because it happens on several of them.
    Are these related?  Might  it  be  hardware?   Any  ideas  would  be
appreciated.  I have a hard time believing that 4.2 would be distributed
with such glaring bugs, but my hardware worked fine under 4.1.

		    * Eric Holstege  Caltech, Pasadena, CA.
		    * eric at cit-vax   eric at cit-20