linux-kernel - Re: [PATCH 10/10] ptrace: implement group stop notification for ptracer

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Message-ID: <20110519165833.GA19418@redhat.com>
Date:	Thu, 19 May 2011 18:58:33 +0200
From:	Oleg Nesterov <oleg@...hat.com>
To:	Tejun Heo <tj@...nel.org>
Cc:	jan.kratochvil@...hat.com, vda.linux@...glemail.com,
	linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, indan@....nu, bdonlan@...il.com
Subject: Re: [PATCH 10/10] ptrace: implement group stop notification for
	ptracer

On 05/19, Oleg Nesterov wrote:
>
> On 05/16, Tejun Heo wrote:
> >
> > When group stop state of a seized tracee changes, JOBCTL_TRAP_NOTIFY
> > is set, which triggers STOP trap but is sticky until the next
> > PTRACE_GETSIGINFO.
>
> I simply can't understand this patch. And the supposed API as it seen
> by the user-space.

I'm afraid I wasn't clear. I didn't mean the patch is bad, I only meant
that I got lost in details and I feel I'll ask more questions later.

Oleg.

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