Date: Thu, 23 Nov 1995 11:57:22 +0100 From: Peter Olsson <pol@leissner.se> To: Michael Smith <msmith@atrad.adelaide.edu.au> Cc: questions@freebsd.org Subject: Re: FreeBSD-boot crashes ICL-machines, anyone else had this? Message-ID: <9511231105.aa08203@lda.leissner.se>
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At 01:35 1995-11-23 +0000, you wrote:
>Peter Olsson stands accused of saying:
>> >Do the crashing machines have S3-based video hardware?
>>
>> The P100 has mac64, I don't know about the P75. Doesn't seem like this is
>> the problem (?)
>
>The problem is that a number of video cards (many S3-based, for starters)
>occupy the same port addresses as the fourth serial port. In order to
>successfully probe the second serial port in a four port system, it is
>necessary to write to the fourth port, which can upset some video adapters,
>possibly causing the system to crash.
I tried disabling several combinations of serial ports, but it didn't help.
Immediately after I go out of config-mode, the screen goes all black and the
computer hangs completely.
The only combination that works is to disable all four serial ports.
Thanks anyway for your good suggestions!
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Peter Olsson Email: pol@leissner.se
Leissner Data AB Telnr: 0520 - 490 511 direkt
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