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SubjectRe: Strange interrupt behaviour

> On Tue, 14 Jul 1998, Alex Buell wrote:
> > On Tue, 14 Jul 1998, Linus Torvalds wrote:
> >
> > > Anyway, looking at the table it is fairly obvious why machines with much
> > > memory don't tend to have problems..
> >
> > Yes, precisely. From your figures, 64MB machines are just right for 2.1.x
> > kernels at the moment which is quite reasonable, but if we could get this
> > fixed for 8MB boxes - 46% attrition rate isn't good - [which most 386s
> > usually have], then I think everyone would be a lot happier with that.
> >
> > I don't know if there are anyone still using 4MB boxes with 2.1.x kernels
> > - anyone else care to speak up?
> >
> > Cheers,
> > Alex.
> >
> I used to use an old 386 with 4mb of ram with slackware but I recently
> stopped when I got my pentium machine. I would guess that 1% of linux users
> still have such an arrangement.
> The Linux community seems to take pride in bringing old hardware to life
> again. With a 2.0.3x kernel I've heard that a 386 makes a nice and very
> cheap ip masq box and even a router. I would be sad to have that stop or
> leave ppl hanging with older kernels wide open to the new DoS attack of the
> month kiddies. As a matter of fact I am making a UMSDOS based installation
> designed for such systems and I would love to get a 2.2.x kernel in it as
> soon as possible.
> I would encourage those of you to working on kernel memory management, etc.
> to please keep the 4mb machines supported.
> Thanks for your time...
> ----------------------------------------------------------------------
> Bruce A. Locke
> -
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I've got a couple of low-memory machines, in fact I was playing around trying
to install slackware-3.5 on a 8M machine and on a 4M machine, that just wasn't happening.
Got alot of 'couldn't get a free page' when trying to mke2fs a 1.2G and 1.6G drive after
booting off of a net.i bootdisk and loading color.gz and after enabling about a 100M swap
partition... I've got a 386DX/40 running as an IP_masq'ing server and a router for IP
and IPX and have a couple of 486DX/33's getting ready to do the same. One thing I thought
was interesting was that with the 486DX/33 w/ 8M when I did a cat /proc/meminfo about half
of the memory was being used by 'buffers', and that didn't seem to go down when I was
running mke2fs, the amount of cache used went down to nil as best I could tell, but the
buffers didn't seem to change at all...

Stephen Frost

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