double fault -> PAGE_KERNEL flagged memory

[Mathieu Desnoyers]

* Roland McGrath (roland@redhat.com) wrote:
> In the current Linus kernel, the i386 do_page_fault routine is marked with
> __kprobes.  As I understand it, this puts it in a special section and no
> kprobe can be inserted inside the function.  If that's the case, I'm a bit
> confused as to how this is coming up.
> 

Well, it's getting clear now that only the vmalloc_fault path of this function
is problematic. It's ok as long as this path does not call any external
function.

Mathieu

OpenPGP public key:              http://krystal.dyndns.org:8080/key/compudj.gpg
Key fingerprint:     8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68