Options to stop processes that can't be killed -9 other than reboot

[mark]

Cameron Simpson wrote:
> On 14Sep2011 15:45, Josh Miller <joshua at itsecureadmin.com> wrote:
> | On 09/14/2011 03:37 PM, Cameron Simpson wrote:
> | >Then it is not a zombie. Zombies are exited processes which still have their
> | >parent, but the parent has not (yet) collected their exit status.
<snip> |
> | In my experience, zombie processes have a parent process ID of 1
> | (init) by the time I discover them.
> 
> It's not my experience, and indeed the man page you quote suggests it
> should not be your experience, since process 1 _is_ init. To be a zombie
> with process 1 as your parent is at best a very very transient thing,
> since init collects all its children almost instantly; indeed, aside
> from mediating runlevels this is init's major function.
<snip>
Well, no. When I see zombies, they've already gone to a parent process 
of 1, and they are *not* transient: if they go away, it's a long time - 
we're talking hours or days; more often, it takes a reboot.

	mark
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