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From: csgr@cs.ru.ac.za (Geoff Rehmet)
Subject: Re: BSD vs. Linux
Message-ID: <CMunDF.BDr@hippo.ru.ac.za>
Sender: news@hippo.ru.ac.za (Usenet News Admin)
Reply-To: csgr@cs.ru.ac.za
Organization: Rhodes University, Grahamstown, South Africa
References: <1994Mar8.141900.2906@wubios.wustl.edu> <MUTS.94Mar14231357@compi.hobby.nl> <2m837m$74@cronkite.cisco.com>
Date: Fri, 18 Mar 1994 07:27:14 GMT
Lines: 31
In <2m837m$74@cronkite.cisco.com> ahasty@muadib.cisco.com writes:
> Peter Mutsaers wrote in article <MUTS.94Mar14231357@compi.hobby.nl> :
>>
>>>> On Fri, 11 Mar 94 11:51:45 -0500, John Dyson <dysonj@delphi.com> said:
>>
>> JD> are starting to diverge because of enhancements being made to
>> JD> FreeBSD (I have heard that the VM stuff is 14K lines of
>> JD> diffs!!!) Features will be coming later. (I want my stuff to
>> JD> run -- my customers don't care that I am implementing the
>> JD> debugger through a procfs instead of a ptrace system call!!)
>>
>>Talking about (missing) features: it would be great for me if (like in
>>Linux) you could use ISA DMA with more than 16MB of RAM; the DMA is
>>done into the lower 16MB and copied if necessary.
>>--
>Hmmm... I thought that /sys/i386/isa/isa.c:isa_dmastart took take care of
>this problem. Unless the code is broken... I am running on my
>system at with 20MB of memory --- granted I don't use much dma
>because I got stuck with an IDE drive.
John Dyson posted a few comments recently that the problem with not
having DMA bounce buffers should be fixed within the next month or
2
Geoff.
--
Geoff Rehmet, Computer Science Department, | ____ _ o /\
Rhodes University, South Africa |___ _-\_<, /\/\/\
email : csgr@cs.ru.ac.za | (*)/'(*) /\/\/\/\/\
: geoff@neptune.ru.ac.za |