From: Andy Lutomirski <luto@amacapital.net>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Aleksa Sarai <asarai@suse.de>,
Linus Torvalds <torvalds@linux-foundation.org>,
Linux FS Devel <linux-fsdevel@vger.kernel.org>,
Linux API <linux-api@vger.kernel.org>,
Linux Containers <containers@lists.linux-foundation.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [GIT PULL] namespaces related fixes for v4.11-rc1
Date: Wed, 22 Feb 2017 19:06:17 -0800 [thread overview]
Message-ID: <CALCETrU5SbbBq7ujuhVnBvm_8cX530zKNUycx0MiuhBqUgpwUQ@mail.gmail.com> (raw)
In-Reply-To: <8737f54rue.fsf@xmission.com>
On Wed, Feb 22, 2017 at 5:29 PM, Eric W. Biederman
<ebiederm@xmission.com> wrote:
> Aleksa Sarai <asarai@suse.de> writes:
>
>>> The only known user of this prctl systemd
>>> forks all children after the prctl. So no userspace regressions will
>>> occur.
>>
>> Note that runC and containerd (and thus Docker) as well as cri-o use the prctl
>> as well -- to be able to collect exit codes from a non-child process (namely to
>> collect the exit code from PID 1 in the container).
>
> Are any of those affected by the change? I would not expect so. As it
> would require having children or grand children whose exit codes you
> don't want to collect.
FWIW, I have private code that uses PR_SET_CHILD_SUBREAPER, too. I
don't see why it would be affected by this change.
prev parent reply other threads:[~2017-02-23 3:06 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-22 20:48 [GIT PULL] namespaces related fixes for v4.11-rc1 Eric W. Biederman
2017-02-22 21:15 ` Aleksa Sarai
2017-02-23 1:29 ` Eric W. Biederman
2017-02-23 2:21 ` Aleksa Sarai
2017-02-23 3:06 ` Andy Lutomirski [this message]
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