Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ames!lll-winken!uunet!pcrat!rick
From: rick@pcrat.UUCP (Rick Richardson)
Newsgroups: comp.unix.microport
Subject: Re: uport V386 fp
Message-ID: <757@pcrat.UUCP>
Date: 1 May 89 03:28:40 GMT
References: <3452@alembic.UUCP>
Reply-To: rick@pcrat.UUCP (Rick Richardson)
Organization: PC Research, Inc., Tinton Falls, NJ
Lines: 26

In article <3452@alembic.UUCP> bill@alembic.UUCP (Bill Hatch) writes:
>We tested uport 3.0e on a compaq 386/20 portable (with 80387)
>and there was no problem as long as only one process was using
>floating point operations.  If 2 processes used floating point,
>then the os crashed.

I had a similar problem with a 287 coproc and 386/ix 1.0.6,
except that the FP-using processes would just core dump.

>3. Has anyone managed to get any version of V386 unix working
>with an 80387 so that more than one process can do floating point
>operations on a "generic" AT386 machine?  (Our intention is to
>use our unix machines as multi-user software development machines.)


Well, all I can say is that my problem with the 287 disappeared
when I upgraded to 386/ix 2.0 (SVR3.2).  I assume there is now
a software fix for the hardware bug which is now part of 3.2.
I don't know if this fix works for 387 coprocs or not.


-- 
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