Messages in this thread Patch in this message | | | Date | Thu, 16 Dec 1999 08:51:12 +0000 (GMT) | From | Tigran Aivazian <> | Subject | RE: [patch-2.3.33] memory size on proliant/1600 |
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Hi Nathan and Linus,
> Note that this patch does NOT properly drop a region which, for instance, > begins at 0x80000000 of length 512, because it's length is NOT zero (until > we page align it.) Such regions may in fact exist as left-overs from ACPI > or NVS regions.
ACPI regions would be of type E820_ACPI and thus skipped automatically. However, you are right, on Intel platforms having less than a page of memory is like having no memory at all, see patch below. Is this one acceptable now?
--- linux/arch/i386/kernel/setup.c Wed Dec 8 07:01:40 1999 +++ work/arch/i386/kernel/setup.c Thu Dec 16 09:38:54 1999 @@ -594,7 +594,7 @@ for (i = 0; i < e820.nr_map; i++) { unsigned long curr_pfn; /* RAM? */ - if (e820.map[i].type != E820_RAM) + if (e820.map[i].type != E820_RAM || PFN_DOWN(e820.map[i].size) == 0) continue; curr_pfn = PFN_DOWN(e820.map[i].addr + e820.map[i].size); if (curr_pfn > max_pfn)
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