---

yaml --- r: 80574 b: refs/heads/master c: 9198715 h: refs/heads/master v: v3
git-mirror · Jan 30, 2008 · bc5e171 · bc5e171
1 parent 69b56e8
commit bc5e171
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Showing 3 changed files with 10 additions and 3 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: bb4a1d644a84e7e9d1d1fa9d1c7d1017b02e0947
+refs/heads/master: 9198715763e8d0fd7fb7578c07916a5313e28b9d
diff --git a/trunk/arch/x86/kernel/e820_64.c b/trunk/arch/x86/kernel/e820_64.c
@@ -70,8 +70,8 @@ void __init reserve_early(unsigned long start, unsigned long end)
 	for (i = 0; i < MAX_EARLY_RES && early_res[i].end; i++) {
 		r = &early_res[i];
 		if (end > r->start && start < r->end)
-			panic("Duplicated early reservation %lx-%lx\n",
-			      start, end);
+			panic("Overlapping early reservations %lx-%lx to %lx-%lx\n",
+			      start, end, r->start, r->end);
 	}
 	if (i >= MAX_EARLY_RES)
 		panic("Too many early reservations");

diff --git a/trunk/arch/x86/mm/init_64.c b/trunk/arch/x86/mm/init_64.c
@@ -358,6 +358,13 @@ static void __init find_early_table_space(unsigned long end)
 	if (table_start == -1UL)
 		panic("Cannot find space for the kernel page tables");
 
+	/*
+	 * When you have a lot of RAM like 256GB, early_table will not fit
+	 * into 0x8000 range, find_e820_area() will find area after kernel
+	 * bss but the table_start is not page aligned, so need to round it
+	 * up to avoid overlap with bss:
+	 */
+	table_start = round_up(table_start, PAGE_SIZE);
 	table_start >>= PAGE_SHIFT;
 	table_end = table_start;