Re: mmap dirty limits on 32 bit kernels (Was: [BUG] New Kernel Bugs)

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On Thu, 15 Nov 2007, Chris Friesen wrote:
> 
> We've got some 32-bit 8GB boxes for which both of these would hold true.

Still not enough of a reason for me to care.

Remember - I'm the guy who refused to merge RH's 4G:4G patches because I 
thought they were an unsupportable nightmare.

I care a lot about future supportability, and HIGHMEM is there purely as a 
temporary wart and blip on the screen.

I did acknowledge that others may care more, but the fact is, I suspect 
that it's going to be cheaper to literally buy and ship a new machine to a 
customer than to really "suppport" it in any other form.

Side note: HIGHMEM64G works perfectly fine with 12GB of RAM under 
*limited*loads*. If your customer does certain well-defined and simple 
things that don't put huge and varied loads on the VFS or VM layer, then 
12GB+ is probably fine regardless.

			Linus
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