I am trying to create a working version of uml on a kernel. I added the skas3 patch to the host kernel, compiled it, installed the uml-utilities and then compiled the guest kernel after addeing the uml patch. The linux binary is created alright but when I execute the uml, it hangs (stops booting ) as shown:

[root@localhost linux-]# ./linux ubd0=root_fs_slack8.1
Checking PROT_EXEC mmap in /tmp...OK
Checking for /proc/mm...found
Checking for the skas3 patch in the host...found
UML running in SKAS3 mode

It hangs after above statement. I tried with Debian, redhat 9.0, mandrake root file systems with the same result. Has anyone has an idea bout what's going on and how I should proceed from here?

Thanks in advance,