I have finished to test the patch for bug 7736.
In fact the patch can't be used as written in the instructions.
It not clear if are wrong instructions or code.

So, which status do I need to insert ?
In discussion, Assigned or Failed QA ?

Failed QA. If the patch writer is able to revise the instructions so that you're able to test it, s/he will set it back to "Needs signoff," and you can test it again.

Regards,

Jared