Re: don't let mmap allocate down to zero

[Brian Gerst]

linux-os wrote:
> On Wed, 26 Jan 2005, Rik van Riel wrote:
>
> > With some programs the 2.6 kernel can end up allocating memory
> > at address zero, for a non-MAP_FIXED mmap call!  This causes
> > problems with some programs and is generally rude to do. This
> > simple patch fixes the problem in my tests.
>
>
> Does this mean that we can't mmap the screen regen buffer at
> 0x000b8000 anymore?
>
> How do I look at the real-mode interrupt table starting at
> offset 0? You know that the return value of mmap is to be
> checked for MAP_FAILED, not for NULL, don't you?

This does not affect the case where the user requests a specific 
virrtual address (ie. vm86 stuff).

--
				Brian Gerst
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