kernel mapping intermediate submission

[Pratik Mathur]

For Kernel Mapping (Part 1), I'm assuming we do not need to
get the shell prompt to show up? It should show up after
we completed user mapping, correct?

So for the intermediate submission, we just need the right output
to show on screen with crashing?

Also, I seem to be getting the right output, but I'm not using the
VM_USER flags anywhere. Am I doing something wrong?

--

[Iulian Neamtiu]

Post by Pratik Mathur
For Kernel Mapping (Part 1), I'm assuming we do not need to
get the shell prompt to show up? It should show up after
we completed user mapping, correct?

You *should get the shell prompt for the intermediate submission*.

Post by Pratik Mathur
So for the intermediate submission, we just need the right output
to show on screen with crashing?
Also, I seem to be getting the right output, but I'm not using the
VM_USER flags anywhere. Am I doing something wrong?

See above. If you get the shell, and can run commands w/o having altered
the flags to include VM_USER, then something's not quite right.

By default, the user has no access to kernel page tables, so if you don't
enable VM_USER, you should get an exception right away.

Iulian