From: ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org (Eric W. Biederman)
To: Aleksa Sarai <asarai-l3A5Bk7waGM@public.gmane.org>
Cc: linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Linux Containers
<containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org>,
Linus Torvalds
<torvalds-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [GIT PULL] namespaces related fixes for v4.11-rc1
Date: Thu, 23 Feb 2017 14:29:45 +1300 [thread overview]
Message-ID: <8737f54rue.fsf@xmission.com> (raw)
In-Reply-To: <84361910-ba16-79ff-09cd-c76b3f66cc85-l3A5Bk7waGM@public.gmane.org> (Aleksa Sarai's message of "Thu, 23 Feb 2017 08:15:46 +1100")
Aleksa Sarai <asarai-l3A5Bk7waGM@public.gmane.org> 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.
Eric
WARNING: multiple messages have this Message-ID (diff)
From: ebiederm@xmission.com (Eric W. Biederman)
To: Aleksa Sarai <asarai@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
linux-fsdevel@vger.kernel.org, linux-api@vger.kernel.org,
Linux Containers <containers@lists.linux-foundation.org>,
linux-kernel@vger.kernel.org
Subject: Re: [GIT PULL] namespaces related fixes for v4.11-rc1
Date: Thu, 23 Feb 2017 14:29:45 +1300 [thread overview]
Message-ID: <8737f54rue.fsf@xmission.com> (raw)
In-Reply-To: <84361910-ba16-79ff-09cd-c76b3f66cc85@suse.de> (Aleksa Sarai's message of "Thu, 23 Feb 2017 08:15:46 +1100")
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.
Eric
next prev parent reply other threads:[~2017-02-23 1:29 UTC|newest]
Thread overview: 11+ 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 20:48 ` Eric W. Biederman
2017-02-22 20:48 ` Eric W. Biederman
[not found] ` <8760k29cku.fsf-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
2017-02-22 21:15 ` Aleksa Sarai
2017-02-22 21:15 ` Aleksa Sarai
[not found] ` <84361910-ba16-79ff-09cd-c76b3f66cc85-l3A5Bk7waGM@public.gmane.org>
2017-02-23 1:29 ` Eric W. Biederman [this message]
2017-02-23 1:29 ` Eric W. Biederman
[not found] ` <8737f54rue.fsf-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
2017-02-23 2:21 ` Aleksa Sarai
2017-02-23 2:21 ` Aleksa Sarai
2017-02-23 3:06 ` Andy Lutomirski
2017-02-23 3:06 ` Andy Lutomirski
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