From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Siddha, Suresh B" <suresh.b.siddha@intel.com>
Date: Fri, 16 Nov 2001 02:05:47 +0000
Subject: [Linux-ia64] PATCH: Fix for 4KB kernel corruption
Message-Id: <marc-linux-ia64-105590698805523@msgid-missing>
List-Id: <linux-ia64.vger.kernel.org>
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To: linux-ia64@vger.kernel.org

Hi,

4KB page size kernel is broken on Lion with 8GB memory. ia64_boot_param
structure was getting corrupted. Appended patch fixes this problem.

PAGE_ALIGN is required because: rsvd_region[i].end need not be page aligned
and in the next iteration of the for loop this can potentially become
bootmap_start. This can lead to corruption of rsvd_region[i] as
init_bootmem() takes the pfn of bootmap_start and initialises the bootmem.

Thanks,
Suresh

diff -u linux-2.4.14/arch/ia64/kernel/setup.c~
linux-2.4.14/arch/ia64/kernel/setup.c
--- linux-2.4.14/arch/ia64/kernel/setup.c~      Thu Nov 15 16:27:23 2001
+++ linux-2.4.14/arch/ia64/kernel/setup.c       Thu Nov 15 16:28:01 2001
@@ -175,7 +175,7 @@
                /* nothing more available in this segment */
                if (range_end = end) return 0;
 
-               free_start = rsvd_region[i].end;
+               free_start = PAGE_ALIGN(rsvd_region[i].end);
        }
        return 0;
 }