Messages in this thread | | | Date | Tue, 17 Aug 1999 01:49:41 +0200 (CEST) | From | Andrea Arcangeli <> | Subject | Re: [bigmem-patch] 4GB with Linux on IA32 |
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On Mon, 16 Aug 1999, Kanoj Sarcar wrote:
>I was also talking about drivers which assume that all of memory is >direct mapped. For example, __va and __pa assume this. There might be >other macros/procedures which have the same assumption built in. >Basically, anything that is dependent on PAGE_OFFSET needs to be >checked.
Only places that may deal with bigmem pages and the core of the kernel must be checked. I don't exclude there still something to fix (as happened with kernel/ptrace.c and /proc/*/mem) but with the current design we shouldn't need to touch the device drivers at all.
The only real problem currently seems to be raw-io to me... (hints?)
Andrea
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