4.2 hangs with locked root inode

[Joe Kelsey]

Well, I think I know where the problem is.  Everyone have their mt.
Xinu bug lists handy?  Ok, now turn to the listing for:

sys/ufs_alloc.c		decvax!jmcg (Jim Mcginness)	6 Feb 84 +FIX sys/94
	cylinder group allocation bug causes hung system.

Mark Plotnick >allegra!mp> pointed this out to me, and also pointed to
a case that Jim missed. I'll submit a separate bug fix for the missing
condition.  If anyone is missing this fix, or doesn't have the Xinu
tapes to refer to, I will send individual copies of this particular bug
via mail.

/Joe