In "Re: kern/3249: More vm woes", Lennart Augustsson
<augustss@cs.chalmers.se> wrote: 
> 
> >  > >How-To-Repeat:
> >  > Just try the command
> >  > tar zxvf file.tar.gz
> >  > Nothing happens.  If you interrupt it and do a ps you see:
> >  >   371   392     1   0 -18  0   296  104 thrd_s D    p4    0:00.01 tar 
> >  >zxvf file.tar.gz
> > This was caused by a deadlock condition that existed between the
> > object collapse code and the pageout daemon.  I committed the appended
> > patch from Charles Hannum a short bit ago.  It took care of the problems
> > like this that I was seeing.
> Thanks for coming up with a quick fix.  Unfortunately I still
> have the same problem.  I just ran sup and now have this vm_object.c:
> /*      $NetBSD: vm_object.c,v 1.44 1997/02/24 22:19:26 thorpej Exp $   */

Are you running lpd?  I noticed that using yesterdays vm_object (building
a kernel with the new .c file now...) that lpd would cause the system
to hang on startup, rather than when it was killed.  Removing lpd from
rc.conf solved the problem.

It's worth a try. ;-)

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