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- Newsgroups: comp.unix.bsd
- Path: sparky!uunet!spool.mu.edu!agate!ames!elroy.jpl.nasa.gov!ucla-cs!ucla-mic!pita!scott
- From: scott@pita.cns.ucla.edu (Scott Burris)
- Subject: Re: Does 386BSD work on systems with 20 megabytes of memory! HELP!
- Message-ID: <scott.725655673@pita>
- Nntp-Posting-Host: pita.cns.ucla.edu
- References: <287902vW30DE01@JUTS.ccc.amdahl.com> <1992Dec29.082629.3222@convex.com> <1992Dec29.165705.28771@Informatik.TU-Muenchen.DE>
- Distribution: comp.unix.bsd
- Date: 29 Dec 92 11:03:56 PST
- Lines: 35
-
- gebhart@Informatik.TU-Muenchen.DE (Ralf Gebhart) writes:
-
- >In article <1992Dec29.082629.3222@convex.com> grefen@convex.com writes:
- >>In article <287902vW30DE01@JUTS.ccc.amdahl.com>, tjw00@zombie.uucp (Tom Wye) writes:
- >>|> Does 386BSD work on machines with 20 megabytes of memory or more? HELP!!!!
- >>|>
- >>|> The system slowly crashs and burns when I boot with 20 megabytes of storage
- >>|> installed. The same kernel runs ok with 4 megabytes.
- >[...]
- >>|> Memory in bank 0 - 4 x 1m sims for 4M
- >>|> Memory in bank 1 - 4 x 4m sims for 16M
- >>|> Adaptec 1542BB
- >>This is it, the Adaptec can only DMA into the lower 16M of RAM ... you loose.
- >>You need an Adaptec 174x (EISA) or change the code in the driver to use a
- >>buffer and copy the data for requests outside the first 16M.
-
- >I had the same problem and heard about the problem with first 16M and the 1542.
- >So I put only 16M to my box. Now my question is, does Julian's SCSI-Kit
- >handle that correctly, e.g. does it use such buffers to avoid direct access
- >to memory above the 16M ?
-
- >Ralf
-
- I had thought I had seen a message about Julian's drivers using buffers
- for the over 16M problem, but I foolishly brought my system up to 20M on
- the weekend and had all sorts of problems. I'm running Julian's drivers
- and the patches from the patchkit. So I guess the answer is no or its
- broken.
-
-
- --
- ----------
- Scott Burris
- UCLA Campus Network Services
- cnetslb@oac.ucla.edu (310) 206-4860 - OR - scott@pita.cns.ucla.edu
-