On 08/04/2010 12:24 PM, Richard W.M. Jones wrote:

Just like the initrd?
There isn't enough address space for a 100MB initrd in ROM.
Because of limits of the original PC, sure, where you had to fit
everything in 0xa0000-0xfffff or whatever it was.

But this isn't a real PC.

You can map the read-only memory anywhere you want.

I wasn't talking about the 1MB limit, rather the 4GB limit. Of that, 3-3.5GB are reserved for RAM, 0.5-1GB for PCI. Putting large amounts of ROM in that space will cost us PCI space.

100 MB initrds are a bad idea for multiple reasons. Demand paging is there for a reason.

--
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.


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