[Pkg-uml-pkgs] Bug#559622: Fwd: BUGFIX : insmod fail with message "overflow in relocation type 11..." for mem=504M and above

[전하늘]

---------- Forwarded message ----------
From: 전하늘 <allskyee at gmail.com>
Date: Wed, Jan 18, 2012 at 11:31 PM
Subject: BUGFIX : insmod fail with message "overflow in relocation type
11..." for mem=504M and above
To: user-mode-linux-devel at lists.sourceforge.net


I found the problem while transitioning to a 64bit machine

The problem seems to exist for physical memory *exceeding
504MB*because that is the precise limit which tips
*VMALLOC_START *with MSB being 1

That would be a problem for 64bit machines since in symbol relocation
function, namely *apply_relocate_add *in arch/x86/kernel/module.c:249,
evaluating *R_X86_64_32S *sign extends 64bit values

The root of the problem though, is that  *VMALLOC_START * start is too big
to begin with since *START *is too big in *Makefile-x86_64 *
*
*
Changing to a smaller value, like say 0x8048000 used for i386 machines
seems to do the trick

Any reason it was 0x60000000 ??
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