Re: [uml-user] Not possible to insmod kernel modules when MEM > 450MB

[richard -r. w. <ric...@gm...>]

On Wed, Jan 23, 2013 at 4:11 PM, Lars-Göran Nordh
<lar...@er...> wrote:
> Hello,
>
> I have built a couple of kernel modules and successfully loaded them using
> modprobe.
> Since I needed more memory i changed MEM=1024MB to the kernel start line.
> The module that earlier was loaded without any problem now give me this
> response:
>
> root@localhost[]:/root> modprobe xcrp
> overflow in relocation type 11 val 813d6980
> `xcrp' likely not compiled with -mcmodel=kernel
> FATAL: Error inserting xcrp (/lib/modules/3.0.49-604-g222f5c6-dirty/xcrp.ko):
> Invalid module format
>
> arch/x86/kernel/module.c:156, evaluating R_X86_64_32S sign extends 64bit
> values  ?
> case R_X86_64_32S:
>         *(s32 *)loc = val;
>          if ((s64)val != *(s32 *)loc)
>                 goto overflow;
> I found out that if I configure less than 460MB of memory the module is loaded
> without any memory overflow.
> Any one that have a solution or workaround to this problem ?
> I desperately need this to work, so please someone help me.

Please upgrade your kernel or apply commit 12783aa0.

-- 
Thanks,
//richard