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From: Valdis.Kletnieks@vt.edu
To: Kay Sievers <kay.sievers@vrfy.org>
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: Wed, 08 Feb 2012 01:42:04 -0500	[thread overview]
Message-ID: <14373.1328683324@turing-police.cc.vt.edu> (raw)
In-Reply-To: Your message of "Wed, 08 Feb 2012 04:50:15 +0100." <CAPXgP12ExDub9ML0=DcWRwyQP23GXDJ75jiNnw+BTXY17tEa8Q@mail.gmail.com>

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On Wed, 08 Feb 2012 04:50:15 +0100, Kay Sievers said:

> After years of working in that area I will stop to work on these hacks
> to promise stable ethX names. It was just wrong, like enumerations
> always are in hotplug setups.

So (real world case) I've got a server that's got a 1G ethernet connected to
the public net, a 1G ethernet that's a cluster management network, and
a 10G ethernet that connects to our HPC clusters.

And I want to add iptables rules that distinguish based on interface. Currently
I can nail the management net to eth0, the public net to eth1, and the 10G to
eth2, and then just add "-i eth1" or whatever in the iptables ruleset.

I really don't care if the 0/1/2 move around - but if we're not having nailed-down
interface names, what will take the place of '-i ethN' in iptables?

> People who need predictable interface names should just manually
> configure custom/descriptive names, or names which are reliably
> derived from the hardware, like firmware-provided names or the pci
> slot number.

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? ;)

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  reply	other threads:[~2012-02-08  6:43 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 [this message]
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
2012-01-31  1:32 ` sysfs regression: wrong link counts Eric W. Biederman
2012-02-01 18:29 ` Maciej Rutecki

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