linux-kernel - Re: CONFIG_HIGHMEM4G and 1GB RAM

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Message-Id: <200705010806.27668.a1426z@gawab.com>
Date:	Tue, 1 May 2007 08:06:27 +0300
From:	Al Boldi <a1426z@...ab.com>
To:	linux-kernel@...r.kernel.org
Subject: Re: CONFIG_HIGHMEM4G and 1GB RAM

William Lee Irwin III wrote:
>> The CONFIG_VMSPLIT config options were merged for such cases.
>> It should be able to split on any 4MB-aligned boundary in
>> CONFIG_HIGHMEM4G. CONFIG_VMSPLIT_3G_OPT appears to do something of
>> this sort to use an entire 1GB RAM with minimal user address space
>> reduction.
>> This is an ELF ABI violation but the number of major applications
>> that break is apparently low.

On Mon, Apr 30, 2007 at 11:18:28PM +0100, Matt Keenan wrote:
> wine and some java implementations being two of the big caveats.

If this is really true, then I think it critical to be mentioned in the 
Kconfig help text.


Thanks!

--
Al

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