Oleg Nesterov wrote:
quoted text
> Afaics, currently there are no kernel problems with ptracing init, it can't
> lose SIGNAL_UNKILLABLE flag and be killed/stopped by accident.
> 
> The ability to strace/debug init can be very useful if you try to figure
> out why it does not work as expected.
> 
> However, admin should know what he does, "gdb /sbin/init 1" stops init, it
> can't reap orphaned zombies or take care of /etc/inittab until continued.
> It is even possible to crash init (and thus the whole system) if you wish,
> ptracer has full control.
> 
> See also the long discussion: http://marc.info/?t=120628018600001
> 
> Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>

Acked-by: Pavel Emelyanov <xemul@openvz.org>
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