User Mode Linux

[Vishal Thanki]

On Thu, Nov 17, 2011 at 7:04 PM, Anuz Pratap Singh Tomar
<chambilkethakur at gmail.com> wrote:
>
>
> On Thu, Nov 17, 2011 at 12:04 PM, Vishal Thanki <vishalthanki at gmail.com>
> wrote:
>>
>> On Wed, Nov 16, 2011 at 9:14 AM, Vishal Thanki <vishalthanki at gmail.com>
>> wrote:
>> >
>> > On Tue, Nov 15, 2011 at 8:09 PM, Lakshmipathi.G
>> > <lakshmipathi.g at gmail.com> wrote:
>> > > But the 2nd command (i.e. losetup) returns with the error complaining
>> > > "/dev/loop1" is not present, but I can see /dev/loop[0..7] files
>> > > present.
>> > >
>> > > Try loading the module as -
>> > >
>> > > #modprobe loop
>> >
>>
>> I have one more question in the same line (i.e. related to UML). I
>> tried loading an external module (build for ARCH=um type). I am able
>> to load that module only if i've booted UML with following command:
>>
>> ./linux ubda=<raw_file_system_path>
>>
>> If i pass the mem parameter, i.e.
>>
>> ./linux ubda=<raw_file_system_path> mem=512M
>>
>> I am not able to load the module. The error that I am seeing is:
>>
>> overflow in relocation type 11 val a121c3c0
>> `tun' likely not compiled with -mcmodel=kernel
>>
>> I tried to load the tun.ko. This holds true for any manually built
>> simple hello_world kind of module too (where i added -mcmodel=kernel
>> parameter in Makefile).
>>
>> What can be wrong with "mem=512M" parameter? I change the size of mem
>> to 128K to 1G, but nothing works. It just doesn't like "mem" parameter
>> as bootargs.
>>
>> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
>
> try compiling it statically

I gave tun.ko as an example. I want to load my own module which is not
part of linux kernel.