Re: Killing a process with a kernel module

[Pavel Machek <pavel@ucw.cz>]

Hi!

> RedHat recently released RHEL4 U2, and this update has some
> unfortunate consequences, mainly
> https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=170087
> 
> As stated in the bugzilla report above, useradd gets stuck in a R
> state and ignores all signals.
> 
> I have a critical system which I can't take down for another week or
> so, but the extra load generated by the rogue useradd process is
> slowing things down a little too much.
> 
> I was wondering if it was possible to safely terminate the process
> using a more direct method (perhaps by manipulating kernel data
> structures.)
> 
> What I'd like to know is if it is actually possible before attempting
> to write the code to do it.
> 
> I know this is a long shot, but it's probably worth trying. :)

Maybe doable, but I'd certainly not do it on important machine.

								Pavel
-- 
Thanks, Sharp!