highmem patch

Gerhard Wichert (gerhard.wichert@sap.com)
Thu, 11 Nov 1999 17:34:22 +0100 (MET)

This message is in MIME format. Your mail reader does not support
MIME. Please read the first section, which is plain text, and
ignore the rest. Better yet, get a MIME-capable mail reader.

--SAP.Boundary.1819UUeyeELesOHenNhOj
Content-Type: TEXT/PLAIN; CHARSET="ISO-8859-1"
Content-Transfer-Encoding: 7BIT
Content-ID: <SAPOffice.1>
Content-Description: highmem patch

--SAP.Boundary.1819UUeyeELesOHenNhOj
Content-Type: TEXT/PLAIN; CHARSET="ISO-8859-1"
Content-Transfer-Encoding: 7BIT
Content-ID: <SAPOffice.2>
Content-Description: highmem patch

Hi,

here comes a patch against 2.3.26. Without this patch a kernel configured for 4GB
memory won't boot if you have usable RAM in your e820 map above 4GB.

--- linux-2.3.26/arch/i386/kernel/setup.c Tue Oct 26 05:51:13 1999
+++ linux-2.3.26-4GBpatch/arch/i386/kernel/setup.c Thu Nov 11 16:01:46 1999
@@ -600,6 +600,10 @@
if (e820.map[i].type != E820_RAM)
continue;
curr_pfn = PFN_DOWN(e820.map[i].addr + e820.map[i].size);
+#ifndef CONFIG_X86_PAE
+ if (curr_pfn != PFN_DOWN(PFN_PHYS(curr_pfn)))
+ continue;
+#endif
if (curr_pfn > max_pfn)
max_pfn = curr_pfn;
}

-Gerhard.
--SAP.Boundary.1819UUeyeELesOHenNhOj--

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/