From: Corey Minyard cminyard@mvista.com
Change
a90118c445cc x86/boot: Save fields explicitly, zero out everything else
modified the way boot parameters were saved on x86. When this was backported, e820_table didn't exists, and that change was dropped. Unfortunately, e820_table did exist, it was just named e820_map in this kernel version.
This was breaking booting on a Supermicro Super Server/A2SDi-2C-HLN4F with a Denverton CPU. Adding e820_map to the saved boot params table fixes the issue.
Cc: stable@vger.kernel.org # 4.9.x, 4.4.x Signed-off-by: Corey Minyard cminyard@mvista.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- arch/x86/include/asm/bootparam_utils.h | 1 + 1 file changed, 1 insertion(+)
--- a/arch/x86/include/asm/bootparam_utils.h +++ b/arch/x86/include/asm/bootparam_utils.h @@ -71,6 +71,7 @@ static void sanitize_boot_params(struct BOOT_PARAM_PRESERVE(edd_mbr_sig_buf_entries), BOOT_PARAM_PRESERVE(edd_mbr_sig_buffer), BOOT_PARAM_PRESERVE(hdr), + BOOT_PARAM_PRESERVE(e820_map), BOOT_PARAM_PRESERVE(eddbuf), };