On Fri, Jul 24, 2009 at 7:13 PM, Robert Millan<invalid.nore...@gnu.org> wrote:
>
> URL:
> <http://savannah.gnu.org/bugs/?27100>
>
> Summary: [REGRESSION] multiboot can't load freeldr.sys
> Project: GNU GRUB
> Submitted by: robertmh
> Submitted on: Fri Jul 24 19:13:29 2009
> Category: Booting
> Severity: Major
> Priority: 5 - Normal
> Item Group: Software Error
> Status: None
> Privacy: Public
> Assigned to: None
> Originator Name:
> Originator Email:
> Open/Closed: Open
> Discussion Lock: Any
> Release: trunk
> Reproducibility: Every Time
> Planned Release:
>
> _______________________________________________________
>
> Details:
>
> Starting with r1760 (the commit that introduced payload relocation), the
> multiboot loader fails to load freeldr.sys (a Multiboot-aout bootloader
> included with ReactOS).
>
> This could be an indication that Multiboot-aout in general is not working, or
> a bug in freeldr.sys (assumption about MBI location).
>
>
>
>
>
> _______________________________________________________
>
> Reply to this item at:
>
> <http://savannah.gnu.org/bugs/?27100>
>
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--
Regards
Vladimir 'phcoder' Serbinenko
Personal git repository: http://repo.or.cz/w/grub2/phcoder.git
diff --git a/ChangeLog b/ChangeLog
index 752bde8..bb8aff3 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2009-07-27 Vladimir Serbinenko <phco...@gmail.com>
+
+ * loader/i386/multiboot_helper.S (grub_multiboot_backward_relocator):
+ Clear direction flag before jumping to OS.
+ (grub_multiboot2_real_boot): Likewise.
+
2009-07-25 Felix Zielcke <fziel...@z-51.de>
* kern/file.c (grub_file_open): Revert to previous check with
diff --git a/loader/i386/multiboot_helper.S b/loader/i386/multiboot_helper.S
index d7539f1..d109458 100644
--- a/loader/i386/multiboot_helper.S
+++ b/loader/i386/multiboot_helper.S
@@ -71,6 +71,7 @@ VARIABLE(grub_multiboot_backward_relocator)
rep
movsb
+ cld
jmp *%edx
VARIABLE(grub_multiboot_backward_relocator_end)
@@ -112,4 +113,6 @@ FUNCTION(grub_multiboot2_real_boot)
/* Move the magic value into eax and jump to the kernel. */
movl $MULTIBOOT2_BOOTLOADER_MAGIC,%eax
popl %ecx
+
+ cld
jmp *%ecx
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