1 files changed, 4 insertions, 1 deletions

diff --git a/arch/x86/boot/header.S b/arch/x86/boot/header.S
index 4cc5b0411db5..64ad9016585a 100644
--- a/arch/x86/boot/header.S
+++ b/arch/x86/boot/header.S
@@ -195,10 +195,13 @@ cmd_line_ptr:	.long	0		# (Header version 0x0202 or later)
                                         # can be located anywhere in
                                         # low memory 0x10000 or higher.
 
-ramdisk_max:    .long (-__PAGE_OFFSET-(512 << 20)-1) & 0x7fffffff
+ramdisk_max:    .long 0x7fffffff
                                         # (Header version 0x0203 or later)
                                         # The highest safe address for
                                         # the contents of an initrd
+                                        # The current kernel allows up to 4 GB,
+                                        # but leave it at 2 GB to avoid
+                                        # possible bootloader bugs.
 
 kernel_alignment:  .long CONFIG_PHYSICAL_ALIGN  #physical addr alignment
                                                 #required for protected mode