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- Newsgroups: comp.unix.sysv386
- Path: sparky!uunet!pipex!demon!constant.demon.co.uk!slangley
- From: slangley@constant.demon.co.uk (Simon Langley)
- Subject: Re: >16MB on a 486
- Message-ID: <BuMpu2.5t1@constant.demon.co.uk>
- Organization: Home
- X-Newsreader: Tin 1.1 PL5
- References: <1992Sep15.000013.24288@omega.ssw.de>
- Date: Tue, 15 Sep 1992 16:58:50 GMT
- Lines: 18
-
- Andreas Vogel (av@omega.ssw.de) wrote:
- :
- : As far as I know, one have NO access to memory above the first 16 MB.
- : This is true for ALL SVR3 Systems (ISC, SCO, ...). This might be true
- : for some SVR4 systems. The original AT&T code provides the routines
- : to access memory above the first 16 MB but these routines are not
- : enabled by default. The only problem that arise is to handle the DMA
- : access within the first 16 MB. So the kernel has to arrange this for
- : buffers which resides in the "extended" memory. Personally, I have a 486 ISA
- : machine running SVR4 with 32MB memory and my SVR4 (SINIX) definitely
- : uses the whole 32MB :-)) Upgrading to 64MB will give no problems (except
- : financial aspects :-)
- :
- Can you tell me how you enabled the paging routines?
-
- --
- Simon Langley (preferred) slangley@constant.demon.co.uk
- Hampstead, London slangley@cix.compulink.co.uk
-