Date: Wed, 21 Nov 2007 00:01:06 +0100
From: Ingo Molnar <mingo@elte.hu>
To: Roland McGrath <roland@redhat.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>,
       Pavel Emelyanov <xemul@openvz.org>, "Rafael J. Wysocki" <rjw@sisk.pl>,
       Pavel Machek <pavel@ucw.cz>, kernel list <linux-kernel@vger.kernel.org>,
       netdev <netdev@vger.kernel.org>, Ulrich Drepper <drepper@redhat.com>
Subject: Re: 2.6.24-rc3: find complains about /proc/net
Message-ID: <20071120230106.GD24380@elte.hu>
References: <20071119191000.GA1560@elf.ucw.cz> <200711192304.25087.rjw@sisk.pl> <4743026B.2020907@openvz.org> <m11wakshyz.fsf@ebiederm.dsl.xmission.com> <20071120215914.GE24156@elte.hu> <m1ve7wr28z.fsf@ebiederm.dsl.xmission.com> <20071120223559.GA6655@elte.hu> <20071120225457.B6E2D26F8BE@magilla.localdomain>
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* Roland McGrath <roland@redhat.com> wrote:

> When did /proc/self get changed to follow tgid instead of pid?  glibc 
> uses /proc/self to refer to various things that are usually shared 
> anyway (fd, maps, cwd, exe), but I think the expectation has always 
> been that this refers to the same calling thread, not the group 
> leader.  e.g., if one thread has changed uids so it no longer has 
> access to the group leader's /proc/PID/fd, suddenly it using 
> /proc/self/fd starts failing.

i guess it was a v2.6.24 change, hence a regression that needs to be 
fixed?

	Ingo
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