From: Oleg Nesterov <oleg@redhat.com>
To: Tejun Heo <tj@kernel.org>
Cc: Denys Vlasenko <dvlasenk@redhat.com>,
linux-kernel@vger.kernel.org,
Denys Vlasenko <vda.linux@googlemail.com>
Subject: Re: Why I want PTRACE_O_TRACESTOP option
Date: Fri, 9 Sep 2011 18:14:59 +0200 [thread overview]
Message-ID: <20110909161459.GB23271@redhat.com> (raw)
In-Reply-To: <20110909001853.GA29319@htj.dyndns.org>
On 09/09, Tejun Heo wrote:
>
> To me, the rationale presented here almost argues against
> PTRACE_O_TRACESTOP. :(
Personally I dislike PTRACE_O_TRACESTOP too.
And once again, this needs more (nontrivial) changes than just
s/PT_SEIZED/PTRACE_O_TRACESTOP/, the patch was wrong.
And, just for example. While this is minor, I'd like to improve
the error codes from ptrace_check_attach(). Until we drop
PTRACE_SEIZE_DEVEL we can safely do this. I don't think it makes
sense to add the new PTRACE_O for this.
And finally, I simply do not understand how it can be useful.
Oleg.
prev parent reply other threads:[~2011-09-09 16:18 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-08 16:50 Why I want PTRACE_O_TRACESTOP option Denys Vlasenko
2011-09-09 0:18 ` Tejun Heo
2011-09-09 5:45 ` Denys Vlasenko
2011-09-09 16:00 ` Oleg Nesterov
2011-09-10 23:43 ` Tejun Heo
2011-09-09 5:54 ` Denys Vlasenko
2011-09-09 12:26 ` Indan Zupancic
2011-09-09 13:01 ` Indan Zupancic
2011-09-09 16:46 ` Denys Vlasenko
2011-09-09 16:26 ` Oleg Nesterov
2011-09-09 23:09 ` Indan Zupancic
2011-09-10 1:17 ` Denys Vlasenko
2011-09-10 11:20 ` Pedro Alves
2011-09-11 0:58 ` Tejun Heo
2011-09-09 16:14 ` Oleg Nesterov [this message]
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