Revert "x86_64: there's no need to preallocate level1_fixmap_pgt"

This reverts commit 033786969d1d1b5af12a32a19d3a760314d05329. Suresh Siddha reported that this broke booting on his 2GB testbox. Reported-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
git-mirror · Jul 16, 2008 · 6596f24 · 6596f24
1 parent 6717ef1
commit 6596f24
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
@@ -362,6 +362,12 @@ NEXT_PAGE(level3_kernel_pgt)
 	.quad	level2_fixmap_pgt - __START_KERNEL_map + _PAGE_TABLE
 
 NEXT_PAGE(level2_fixmap_pgt)
+	.fill	506,8,0
+	.quad	level1_fixmap_pgt - __START_KERNEL_map + _PAGE_TABLE
+	/* 8MB reserved for vsyscalls + a 2MB hole = 4 + 1 entries */
+	.fill	5,8,0
+
+NEXT_PAGE(level1_fixmap_pgt)
 	.fill	512,8,0
 
 NEXT_PAGE(level2_ident_pgt)