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- Newsgroups: comp.unix.bsd
- Path: sparky!uunet!math.fu-berlin.de!informatik.tu-muenchen.de!gebhart
- From: gebhart@Informatik.TU-Muenchen.DE (Ralf Gebhart)
- Subject: Re: Does 386BSD work on systems with 20 megabytes of memory! HELP!
- References: <287902vW30DE01@JUTS.ccc.amdahl.com> <1992Dec29.082629.3222@convex.com>
- Sender: news@Informatik.TU-Muenchen.DE (USENET Newssystem)
- Organization: Technische Universitaet Muenchen, Germany
- Date: Tue, 29 Dec 1992 16:57:05 GMT
- Message-ID: <1992Dec29.165705.28771@Informatik.TU-Muenchen.DE>
- Distribution: comp.unix.bsd
- Lines: 20
-
- 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
-