>This is important: Can anyone say *for sure* that a snapshot kernel
>built after March 14 worked for them on a 3100?
>
>Or that a kernel built using the March snapshot worked on a 3100?
>
>(If you can't remember, then please try the March 16 snapshot kernel,
>which is still on ftp.netbsd.org as snapshot-1997-03-16/netbsd.

In hopes of narrowing it down, I just tried bunches of kernels.  If we
just call untarring the X11R6.3 binaries a test, here are the results:

These DO hang:

    NetBSD 1.2C (GENERIC) #2: Sat Mar 15 07:12:37 PST 1997
    jonathan@Reno.DSG.Stanford.EDU:/reno/compile/GENERIC

    NetBSD 1.2D (GENERIC) #3: Tue Mar 25 00:33:17 PST 1997
    jonathan@Reno.DSG.Stanford.EDU:/reno/compile/GENERIC

    NetBSD 1.2D (GENERIC) #0: Wed May 14 22:49:36 PDT 1997
    jonathan@Reno.DSG.Stanford.EDU:/reno/compile/GENERIC

    NetBSD 1.2D (GENERIC) #3: Thu May 15 20:31:04 PDT 1997
    jonathan@Reno.DSG.Stanford.EDU:/reno/compile/GENERIC

These DO NOT hang (i.e. tar exits normally):

    1.2_ALPHA (NEWCONF) #1: Sun Jun 23 14:28:20 PDT 1996
    jonathan@Reno.DSG.Stanford.EDU:/usr/src/sys/arch/pmax/compile/NEWCONF

    1.2 (GENERIC) #0: Tue Sep 17 01:14:00 PDT 1996
    jonathan@Reno.DSG.Stanford.EDU:/usr/src/sys/arch/pmax/compile/GENERIC
    
    1.2 (ACM) #1: Tue Dec  3 13:36:56 PST 1996
    slumos@acm0:/usr/src/kernel/arch/pmax/compile/ACM

    NetBSD 1.2.1 (ACM0) #0: Thu Mar 27 17:34:50 PST 1997
    slumos@acm0.cs.unlv.edu:/usr/src/kernel/1.2.1/arch/pmax/compile/ACM0

Sorry if that is more than you wanted to know, but I wanted to be
complete.  I compiled the 1.2.1 kernel just out of curiosity, I've
never been quite sure what 1.2.1 means for pmax, so the one we are
running is the 1.2 (ACM) one.

Let me know if there is anything else I can do.

Steve