Subject: Re: Current kernels hanging in _splnone() on a /240?
To: None <port-pmax@NetBSD.ORG>
From: Toru Nishimura <nisimura@itc.aist-nara.ac.jp>
List: port-pmax
Date: 12/06/1999 16:26:58
  [ ... 1.4.1 makes panic on netstat(1), -current freezes during boot ... ]

> I have a HX and a PMAD-AA in the box. The second NIC is for netbooting
> the box since it has currently no disks. The kernel initializes,
> switches to Rasterconsole, detects the hardware and than hangs just
> before probing the SCSI bus for devices. 
>
> With printf-debugging I've tracked it down to the _splnone() call in
> autoconf.c.
>       [ ... ]
> The machine in question is a /240 with 112MB RAM, HX and a PMAD-AA with
> ROM version (IIRC) 5.3t... The 1.4.1 kernel still boots fine and works
> quite stable with a 1.4 user-land, although it will panic when doing
> netstat.

According to the symptoms, your /240 kernel mishandles interrupts from
TC option cards, either HX or PMAD, even both.  Is it possible to test
the machinary to boot w/ no TC option card, or either of two?

Tohru Nishimura