From: Kay Sievers <kay.sievers@vrfy.org>
To: Valdis.Kletnieks@vt.edu
Cc: Henrique de Moraes Holschuh <hmh@hmh.eng.br>,
Jiri Slaby <jslaby@suse.cz>,
"Eric W. Biederman" <ebiederm@xmission.com>,
Greg KH <greg@kroah.com>, LKML <linux-kernel@vger.kernel.org>,
ML netdev <netdev@vger.kernel.org>
Subject: Re: network regression: cannot rename netdev twice
Date: Thu, 9 Feb 2012 00:48:56 +0100 [thread overview]
Message-ID: <CAPXgP13j1abG-ncaGeRgTpZdPc964Q4Yz3XLk8YQm4z5Q07Hkg@mail.gmail.com> (raw)
In-Reply-To: <10120.1328731572@turing-police.cc.vt.edu>
On Wed, Feb 8, 2012 at 21:06, <Valdis.Kletnieks@vt.edu> wrote:
> On Wed, 08 Feb 2012 11:57:18 +0100, Kay Sievers said:
>> On Wed, Feb 8, 2012 at 07:42, <Valdis.Kletnieks@vt.edu> wrote:
>
>> > Or is this sort of thing in /etc/udev/rules.d/70-persistent-net.rules
>> > SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:25:90:0b:f2:80", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
>> > what you are trying to move to, and my systems are already onboard and
>> > I should just move along, nothing to see here? ;)
>>
>> Yeah, that's what we did in the past. It works fine if you never have
>> to swap names like eth0 and eth1, with need to free one of the the
>> names with a temporary rename.
>
> Well, if I had my druthers, I'd stick name="net-mgt", "net-pub", and "net-10g"
> in the udev rules, and not care about 1/2/3 and race conditions, because
> meaningful names are easier to not screw up (just last week found a system that
> had eth1 and eth2 reversed in some iptables rules, wouldn't have happened if
> they were -mgt and -pub).
>
> Only thing stopping me is getting iptables to accept '-i net-10g', and the
> distro /etc/sysconfig/network scripts like ifup and ifdown playing nice....
>
> So it sounds like what I want as a sysadmin is the same thing you want
> as a maintainer...
Yeah, that sounds very much like it is.
I want to push some responsibility to the admin, do less automagic,
and personally want to be less responsible for all the unintended
screw-up the automagic is causing everywhere.
Sure, the intention to keep the names like they always have been was
good, but a good intention and a broken model to deliver it, and
continue to pretend we can solve it, is the worst things we can do. :)
Kay
next prev parent reply other threads:[~2012-02-08 23:49 UTC|newest]
Thread overview: 75+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-30 21:56 sysfs regression: wrong link counts Jiri Slaby
2012-01-30 22:06 ` Greg KH
2012-01-30 22:10 ` Alan Cox
2012-01-30 22:27 ` Greg KH
2012-01-30 22:43 ` Al Viro
2012-01-30 22:56 ` Al Viro
2012-01-31 1:27 ` Eric W. Biederman
2012-01-31 10:48 ` Jiri Slaby
2012-01-31 12:44 ` Eric W. Biederman
2012-01-31 16:45 ` Linus Torvalds
2012-01-31 19:18 ` Al Viro
2012-02-01 5:06 ` Eric W. Biederman
2012-02-01 22:21 ` [PATCH] sysfs: Optionally count subdirectories to support buggy applications Eric W. Biederman
2012-02-01 22:24 ` Greg Kroah-Hartman
2012-02-01 22:44 ` Eric W. Biederman
2012-02-01 22:49 ` Greg Kroah-Hartman
2012-02-01 22:31 ` Dave Jones
2012-02-01 22:35 ` Jiri Slaby
2012-02-01 23:15 ` Linus Torvalds
2012-02-01 23:18 ` Linus Torvalds
2012-02-02 1:22 ` Al Viro
2012-02-02 21:24 ` [RFC] killing boilerplate checks in ->link/->mkdir/->rename Al Viro
2012-02-02 23:46 ` Linus Torvalds
2012-02-03 1:16 ` Al Viro
2012-02-03 1:45 ` Al Viro
2012-02-03 2:00 ` Linus Torvalds
2012-02-03 14:57 ` Chris Mason
2012-02-03 17:08 ` Al Viro
2012-02-03 19:34 ` Artem Bityutskiy
2012-02-06 8:50 ` Artem Bityutskiy
2012-02-06 13:56 ` Al Viro
2012-02-06 17:05 ` Artem Bityutskiy
2012-02-06 17:11 ` Al Viro
2012-02-07 7:21 ` Artem Bityutskiy
2012-02-06 22:49 ` Dave Chinner
2012-02-03 8:25 ` Andreas Dilger
2012-02-03 17:03 ` Al Viro
2012-02-04 7:42 ` Andreas Dilger
2012-03-05 13:30 ` [PATCH] sysfs: Optionally count subdirectories to support buggy applications Jiri Slaby
2012-03-05 16:09 ` Greg Kroah-Hartman
2012-03-05 16:47 ` Linus Torvalds
2012-03-08 21:05 ` Greg Kroah-Hartman
2012-03-08 22:18 ` Eric W. Biederman
2012-03-08 23:40 ` Linus Torvalds
2012-03-08 21:28 ` Eric W. Biederman
2012-03-08 21:34 ` [PATCH 1/3] sysfs: Compact sysfs_dirent s_flags into a byte Eric W. Biederman
2012-03-08 21:36 ` [PATCH 2/3] sysfs: Maintain usable nlink directory counts Eric W. Biederman
2012-03-08 21:37 ` [PATCH 3/3] sysfs: Remove SYSFS_FLAG_REMOVED and use sd->s_nlink == 0 instead Eric W. Biederman
2012-03-09 3:40 ` Linus Torvalds
2012-03-08 22:28 ` [PATCH 1/3] sysfs: Compact sysfs_dirent s_flags into a byte Greg Kroah-Hartman
2012-03-09 2:49 ` Eric W. Biederman
2012-01-31 3:45 ` sysfs regression: wrong link counts Eric W. Biederman
2012-01-31 11:54 ` Alan Cox
2012-01-30 22:52 ` Kay Sievers
2012-01-31 10:41 ` network regression: cannot rename netdev twice Jiri Slaby
2012-01-31 10:52 ` Kay Sievers
2012-01-31 11:00 ` Jiri Slaby
2012-01-31 11:13 ` Kay Sievers
2012-01-31 11:17 ` Jiri Slaby
2012-01-31 11:58 ` Kay Sievers
2012-01-31 14:18 ` Eric W. Biederman
2012-01-31 14:40 ` [PATCH] sysfs: Update the name hash when renaming sysfs entries Eric W. Biederman
2012-01-31 14:41 ` Jiri Slaby
2012-01-31 14:55 ` Greg KH
2012-02-04 2:14 ` network regression: cannot rename netdev twice Henrique de Moraes Holschuh
2012-02-06 20:03 ` Kay Sievers
2012-02-08 2:00 ` Henrique de Moraes Holschuh
2012-02-08 3:50 ` Kay Sievers
2012-02-08 6:42 ` Valdis.Kletnieks
2012-02-08 10:57 ` Kay Sievers
2012-02-08 20:06 ` Valdis.Kletnieks
2012-02-08 20:27 ` Stephen Hemminger
2012-02-08 23:48 ` Kay Sievers [this message]
2012-01-31 1:32 ` sysfs regression: wrong link counts Eric W. Biederman
2012-02-01 18:29 ` Maciej Rutecki
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