Re: [BProc] missing symbols

[J.A. M. <jam...@ab...>]

On 09.04, Nicholas Henke wrote:
> Hey Erik~
> 	I am attempting to get a RH kernel patched for bproc, but I am running
> into some missing symbols. Here is what depmod tells me:
> 

Oops, I have forgotten it...

Two things:

- sys_call_table: this is not a bug, it was unexported to prevent things
  like BProc does. So it is a good time to start thinking on how to
  re-implement that functionality. Perhaps a full hook system shared
  with the security people...
- RH kernels usually are really -ac kernels, not plain mainline. -ac
  include the O(1) scheduler, and I think bproc bombs when put togheter
  with O(1) sched. My -aa kernels patched with bproc worked fine until
  Andea put in the scheduler. bproc fits ok with a ton of other patches
  I collect, even once I tried with just the -aa VM and bproc. It worked.
  So it looks like it is the scheduler.
  When I have the time I will try to dig this, but not until I submit my
  thesis...I need to burn the cluster.

Hope this helps (to do not loose your time, or to shred a light if you
get it working...)

As I look into it, init_new_context sounds about scheduling, and if RH
patched it...
And pte_offset sounds about VM management, high pages and so on, and
RH kernels also have a different VM subsystem than mainline (-rmap).

In short, a RH kernel has nothing to do with a standard kernel, so
expect a ton of trouble.

-- 
J.A. Magallon <jam...@ab...>      \                 Software is like sex:
werewolf.able.es                         \           It's better when it's free
Mandrake Linux release 9.2 (Cooker) for i586
Linux 2.4.23-pre2-jam1m (gcc 3.3.1 (Mandrake Linux 9.2 3.3.1-1mdk))