Re: [PATCH] ptrace: it is fun to strace /sbin/init

[Andi Kleen]

On Tue, Mar 25, 2008 at 03:47:54PM +0100, Pavel Machek wrote:
> Hi!
> 
> > > > I like the general idea -- i used to patch kernels to allow this too,
> > > > but it is dangerous.
> > > 
> > > Though root-only. Root doesn't want to be limited and knows better
> > > anyway. 
> > 
> > The problem is that you can deadlock if you are not very careful.
> 
> How is that different from ptracing any other process with _lot_ of
> children -- like X? You'll get same zombies in both cases, leading to
> same issues, no?

There is no unresolvable deadlock no.

-Andi
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