1 files changed, 7 insertions, 0 deletions

diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index a95272644591..cc50a13ce8d9 100644
--- a/arch/x86/mm/init_64.c
+++ b/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;