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From: Denys Vlasenko <vda.linux@googlemail.com>
Date: Wed, 18 May 2011 17:02:11 +0200
Message-ID: <BANLkTinO59MFbz679ZyvVR4U8KfwnbNYxQ@mail.gmail.com>
Subject: Re: Ptrace documentation, draft #1
To: Oleg Nesterov <oleg@redhat.com>
Cc: Tejun Heo <tj@kernel.org>, jan.kratochvil@redhat.com,
        linux-kernel@vger.kernel.org, torvalds@linux-foundation.org,
        akpm@linux-foundation.org, indan@nul.nu
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On Mon, May 16, 2011 at 6:53 PM, Oleg Nesterov <oleg@redhat.com> wrote:
>> I think resuming from signal delivery trap
>> should be the only place where @data means signo.
>
> Agreed, it would be more clean/simple/understandable.

I think ptrace API never promised that it will be possible
to "create new signal" by passing non-zero data - only
that the already pending signal can be passed, altered
or suppressed. If there *are* cases where "create new signal"
currently works, it's a quirk.

I changed doc to reflect this. If we tighten it up so that we can state
that all such attempts will be ignored, we can update docs.

-- 
vda
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