Linux-kernel mailing list archive 1999-23,: Re: holes for ISA boards...

# Re: holes for ISA boards...

Riley Williams (rhw@MemAlpha.CX)
Sat, 12 Jun 1999 14:42:28 +0100 (GMT)

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Hi Adam.

> Christer Weinigel made a patch for 2.0.29 so long ago that
> let Linux use all your RAM and still have the hole.

> It may still be available at:

> ftp://rvs.ctrl-c.liu.se/pub/wingel/memory-hole-2.0.29.diff

> Shouldn't be terribly difficult to move to 2.2/2.3.

Any idea why this patch wasn't included in the main kernel?
It sounds like it'd be a very useful feature.

Certainly, on my motherboard, if I enable the BIOS setting for
"Enable 16M ISA DMA", a RAM hole appears between 14-16M, but at
the same time, RAMtop moves upwards by 2M to compensate, so if
such a patch was included, this system would work either way.

Best wishes from Riley.

+----------------------------------------------------------------------+
| There is something frustrating about the quality and speed of Linux |
| development, ie., the quality is too high and the speed is too high, |
| in other words, I can implement this XXXX feature, but I bet someone |
| else has already done so and is just about to release their patch. |
+----------------------------------------------------------------------+
* ftp://ftp.MemAlpha.cx/pub/rhw/Linux
* http://www.MemAlpha.cx/kernel.versions.html

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