With 2.6.31 'crash' on x86_64 falls flat on its face as the '_end' symbol

is missing from the System.map file.

The culprit is commit 091e52c3, which
moved the '_end' symbol into it's own section.  Apparently this causes
kallsyms to not reference it properly.

So either we'd need to revert part of the patch to not include _end in
it's own section.

Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

arch/x86/kernel/vmlinux.lds.S

@@ -319,9 +319,7 @@ SECTIONS
 		__brk_limit = .;
 	}
 
-	.end : AT(ADDR(.end) - LOAD_OFFSET) {
-		_end = .;
-	}
+	_end = .;
 
         STABS_DEBUG
         DWARF_DEBUG