diff options
Diffstat (limited to 'arch/x86/mm/init_64.c')
| -rw-r--r-- | arch/x86/mm/init_64.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index a9527264459..cc50a13ce8d 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; |