[MMU] NPE should force kill process

[trylimits]

A process which accesses a NP should be forced killed in the dabt handler.

[ghost]

what exactly do you mean by "accesses a NP"?

[trylimits]

NP = null pointer :)

I already fixed the issue in the above commit.

Test case was as follows:

void nullPointerProcess(int argc, char** argv)
{
    printf("I am accessing a null pointer now \n");

    int* nullPointer = 0;

    printf("Printing the nullpointer: %i\n", *nullPointer);
}

I started this process using the ProcessManager. Debug output was:

[...]
[DEBUG @ 60] dabt interrupt from pid=2, with fault state=5
I am accessing a null pointer now
[ERROR @ 60] NPE from process 2
[DEBUG @ 60] Scheduler is killing process with pid=2
[...]