Date: Mon, 27 Nov 1995 16:41:20 +1100 (EST) From: rich@spirit.com.au (Rich Siggs) To: hsu@clinet.fi (Heikki Suonsivu) Cc: msmith@atrad.adelaide.edu.au, freebsd-hackers@freefall.freebsd.org Subject: Re: 16 ports Boca - anyone using it? Message-ID: <199511270541.QAA16483@pod.spirit.com.au> In-Reply-To: <199511270239.EAA24909@katiska.clinet.fi> from "Heikki Suonsivu" at Nov 27, 95 04:39:16 am
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Hello Heikki, Michael & the 'Hacking Hordes', ;)
> Michael Smith writes:
.. I wrote:
> > > My first card had bad probe problems, with the odd 1 or more ports
> > > simply not probing-on-boot.. Actually, this has stabilised greatly since I
> ...
> > > We see lots of this after panics (usually a reboot cures it), on several
> > > machines. I tried adding multiple sio<n> lines in kernel config and it
Yup -- I've got all the sio's configured too..
> ...
> > Check what the state of DCD on the ports is when your probes fail. I've
> > seen probes on multiport cards reliably fail when DCD is set. (I never
> > checked the probe code to see whether it was barfing on strangeness in
> > the LSR)
> Usually the ports which fail have DCD set, I haven't verified it but they
> probably are as they are either leased lines, or in some cases modems which
> were connected when crash happens.
I've done testing of this port-no-probe behaviour on both my AST/4
cards & the BOCA. Both of them have the _potential_ to fail a port's probe if
DCD is set, but not all DCD-active ports fail a crash-reboot probe..
However, a port that has DCD _&_ either TX or RX at the crash is bound to fail
the probe (ain't 100%, but certainly 75% probable ;) *Hmm*
Could this be related to the 16550A's, or (as suggested) some code in the
boot probe?
> --
> Heikki Suonsivu, T{ysikuu 10 C 83/02210 Espoo/FINLAND,
> hsu@clinet.fi work +358-0-4375209 fax -4555276 home -8031121
Rich.
--
Richard Siggs admin@spirit.com.au
Spirit Networks Pty Ltd http://www.spirit.net.au
P.O. Box 486 +61 6 281 3552
Curtin. ACT. Australia 2605 +61 15 486 708
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