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From: David Newall <david@davidnewall.com>
To: Bill Davidsen <davidsen@tmr.com>
Cc: Philipp Marek <philipp@marek.priv.at>,
	7eggert@gmx.de, Alan Cox <alan@lxorguk.ukuu.org.uk>,
	majkls <majkls@prepere.com>,
	bunk@fs.tum.de, linux-kernel@vger.kernel.org
Subject: Re: sys_chroot+sys_fchdir Fix
Date: Fri, 21 Sep 2007 17:59:24 +0930	[thread overview]
Message-ID: <46F380E4.4040606@davidnewall.com> (raw)
In-Reply-To: <46F2DDD0.3030500@tmr.com>

Bill Davidsen wrote:
> there is no question that pivot_root is intended to have breadth for 
> more than one process. 

I think it's clear from the man page that the original idea was to be 
able to pivot_root for individual processes.  The reason it doesn't do 
that, the reason it affects all processes, is to work around the 
bootstrap problem, where processes that don't care what their root (or 
current) directory is are still using the original root.

An extra parameter could be added to specify which behavior is desired, 
probably defaulting to the current behavior. That would remove the need 
to use a chroot bug.

  reply	other threads:[~2007-09-21  8:29 UTC|newest]

Thread overview: 97+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <952DN-83o-31@gated-at.bofh.it>
     [not found] ` <954cl-29C-3@gated-at.bofh.it>
     [not found]   ` <95ctn-74b-15@gated-at.bofh.it>
     [not found]     ` <95cMH-7um-19@gated-at.bofh.it>
     [not found]       ` <95gdA-4OZ-7@gated-at.bofh.it>
2007-09-20 11:13         ` sys_chroot+sys_fchdir Fix Bodo Eggert
2007-09-20 11:59           ` Philipp Marek
2007-09-20 12:52             ` majkls
2007-09-20 16:06             ` David Newall
2007-09-20 16:17               ` Philipp Marek
2007-09-20 18:02                 ` David Newall
2007-09-20 20:53                   ` Bill Davidsen
2007-09-21  8:29                     ` David Newall [this message]
2007-09-24 21:32                       ` Serge E. Hallyn
2007-09-24 22:04                         ` David Newall
2007-09-24 23:00                           ` Serge E. Hallyn
2007-09-25  7:45                             ` David Newall
2007-09-25 11:49                               ` Serge E. Hallyn
2007-09-25 13:58                                 ` David Newall
2007-09-25 15:10                                   ` Chroot bug (was: sys_chroot+sys_fchdir Fix) David Newall
2007-09-25 15:20                                     ` Jan Engelhardt
2007-09-25 15:39                                       ` Chroot bug Miloslav Semler
2007-09-25 15:41                                       ` David Newall
2007-09-25 15:48                                         ` Jan Engelhardt
2007-09-25 16:19                                           ` Miloslav Semler
2007-09-25 16:52                                             ` Jan Engelhardt
2007-09-25 17:00                                               ` Miloslav Semler
2007-09-25 17:05                                                 ` Jan Engelhardt
2007-09-25 17:09                                                   ` Miloslav Semler
2007-09-25 17:09                                                   ` Al Viro
2007-09-25 17:19                                                     ` Miloslav Semler
2007-09-25 16:53                                             ` Serge E. Hallyn
2007-09-25 20:51                                           ` David Newall
2007-09-25 15:30                                     ` Chroot bug (was: sys_chroot+sys_fchdir Fix) Alan Cox
2007-09-25 15:35                                       ` Chroot bug David Newall
2007-09-25 15:48                                         ` Alan Cox
2007-09-25 15:47                                           ` Jan Engelhardt
2007-09-25 23:50                                           ` David Newall
2007-09-26  0:18                                             ` Alan Cox
2007-09-26 10:24                                               ` David Newall
2007-09-26 10:47                                                 ` Alan Cox
2007-09-26 11:06                                                   ` David Newall
2007-09-26 11:20                                                     ` Alan Cox
     [not found]                                                       ` <46FA41B4.9040104@prepere.com>
     [not found]                                                         ` <20070926123522.54ffd56f@the-village.bc.nu>
2007-09-26 11:34                                                           ` Miloslav Semler
2007-09-26 14:09                                                             ` Alan Cox
2007-09-26 13:13                                                     ` Bongani Hlope
2007-09-26  0:55                                             ` Adrian Bunk
2007-09-26  5:21                                               ` Kyle Moffett
2007-09-26  5:25                                                 ` Willy Tarreau
2007-09-26 10:27                                                 ` David Newall
2007-09-26 10:45                                                   ` Olivier Galibert
2007-09-26 11:13                                                     ` David Newall
2007-09-26 13:18                                                       ` linux-os (Dick Johnson)
2007-09-26 15:02                                                       ` Olivier Galibert
2007-09-26 12:54                                                   ` Kyle Moffett
2007-09-26 13:11                                                     ` Miloslav Semler
2007-09-26 13:42                                                       ` Al Viro
2007-09-26 14:51                                                         ` Miloslav Semler
2007-09-26 14:02                                                       ` Kyle Moffett
2007-09-26 15:01                                                         ` Miloslav Semler
2007-09-27 13:49                                                           ` Jiri Kosina
2007-09-25 16:33                                         ` Arjan van de Ven
2007-09-25 15:32                                     ` Chroot bug (was: sys_chroot+sys_fchdir Fix) Adrian Bunk
2007-09-25 15:43                                       ` Chroot bug Miloslav Semler
2007-09-25 16:02                                         ` Adrian Bunk
2007-09-26 19:23                                     ` Chroot bug (was: sys_chroot+sys_fchdir Fix) Bodo Eggert
2007-09-24 23:02                           ` sys_chroot+sys_fchdir Fix Serge E. Hallyn
     [not found]         ` <95UE2-1oR-19@gated-at.bofh.it>
     [not found]           ` <95V72-2ly-17@gated-at.bofh.it>
     [not found]             ` <97pG8-3B5-47@gated-at.bofh.it>
     [not found]               ` <97sX2-p1-3@gated-at.bofh.it>
2007-09-26  9:38                 ` Nick Craig-Wood
2007-09-19  7:19 majkls
2007-09-19  9:40 ` Alan Cox
2007-09-19 18:27   ` Bill Davidsen
2007-09-19 18:45     ` Alan Cox
2007-09-19 22:24       ` David Newall
2007-09-21 17:39         ` Phillip Susi
2007-09-21 18:10           ` Alan Cox
2007-09-25 20:53             ` Phillip Susi
2007-09-26  0:23               ` Al Viro
2007-09-26 10:34                 ` David Newall
2007-09-26 11:21                   ` Alan Cox
2007-09-26 11:22                     ` David Newall
2007-09-26 11:38                       ` Alan Cox
2007-09-26 11:56                         ` David Newall
2007-09-26 14:10                           ` Alan Cox
2007-09-26 15:03                             ` Chris Adams
2007-09-26 16:54                             ` David Newall
2007-09-26 17:04                               ` Alan Cox
2007-09-26 17:18                                 ` David Newall
2007-09-26 17:29                                   ` Alan Cox
2007-09-26 17:28                                     ` David Newall
2007-09-26 18:40                   ` Al Viro
2007-09-26 19:24                   ` Christer Weinigel
2007-09-26 21:19                     ` David Newall
2007-09-26 21:55                       ` Adrian Bunk
2007-09-26 23:35                         ` David Newall
2007-09-27  0:01                           ` Adrian Bunk
2007-09-27  3:59                             ` Al Viro
2007-09-27  6:42                             ` David Newall
2007-09-27  6:53                               ` Adrian Bunk
2007-09-27  7:28                       ` Christer Weinigel
2007-09-27 11:23                         ` Theodore Tso
2007-09-27 14:36                           ` Bill Davidsen
2007-09-28  1:06                             ` David Newall
     [not found] <fa.1U6+49SWHSlhuK5/3PBckFWAbXU@ifi.uio.no>
     [not found] ` <fa.WASh5K8oOF4DAq3sSYtIlWNCdWQ@ifi.uio.no>
     [not found]   ` <fa.X6MeYG+PmN8/e5zfGij80quLaws@ifi.uio.no>
     [not found]     ` <fa./eIdqiAY0Mx9xHl6ESobHaLKJBM@ifi.uio.no>

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