diff --git a/ChangeLog b/ChangeLog
index b0bed2c37..9b7caa65c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2012-03-08  Vladimir Serbinenko  <phcoder@gmail.com>
+
+	* grub-core/boot/i386/pc/startup_raw.S (multiboot_trampoline): Fix
+	size calculation.
+	* grub-core/kern/i386/realmode.S (realidt): Assume default BIOS IDT if
+	none is known.
+
 2012-03-08  Vladimir Serbinenko  <phcoder@gmail.com>
 
 	* grub-core/net/net.c (grub_net_addr_to_str): Don't translate
diff --git a/grub-core/boot/i386/pc/startup_raw.S b/grub-core/boot/i386/pc/startup_raw.S
index 952cd814a..2147ddeaf 100644
--- a/grub-core/boot/i386/pc/startup_raw.S
+++ b/grub-core/boot/i386/pc/startup_raw.S
@@ -303,7 +303,7 @@ multiboot_entry:
 	movl	%ebp, %esp
 
 	/* relocate the code */
-	movl	$(LOCAL(decompressor_end) + 0x200), %ecx
+	movl	$(LOCAL(decompressor_end) - _start + 0x200), %ecx
 	addl	LOCAL(compressed_size) - _start + 0x100000 + 0x200, %ecx
 	movl	$0x100000, %esi
 	movl	$GRUB_BOOT_MACHINE_KERNEL_ADDR, %edi
diff --git a/grub-core/kern/i386/realmode.S b/grub-core/kern/i386/realmode.S
index 0b6190337..6403b9699 100644
--- a/grub-core/kern/i386/realmode.S
+++ b/grub-core/kern/i386/realmode.S
@@ -117,7 +117,7 @@ gdtdesc:
 	.word	0x27			/* limit */
 	.long	gdt			/* addr */
 LOCAL(realidt):
-	.word 0
+	.word 0x400
 	.long 0
 protidt:
 	.word 0