Date: Thu, 20 Oct 2005 14:27:44 -0400 From: Anish Mistry <mistry.7@osu.edu> To: freebsd-current@freebsd.org Cc: Tom McLaughlin <tmclaugh@sdf.lonestar.org> Subject: Re: kern/87506 : [PATCH] Fix alias support on vr interfaces Message-ID: <200510201427.53315.mistry.7@osu.edu> In-Reply-To: <200510201115.21750.jhb@freebsd.org> References: <41473.192.216.27.32.1129818223.squirrel@192.216.27.32> <200510201115.21750.jhb@freebsd.org>
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--nextPart2555297.RObWYc2Cof Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline On Thursday 20 October 2005 11:15 am, John Baldwin wrote: > On Thursday 20 October 2005 10:23 am, Tom McLaughlin wrote: > > Hi, would someone be available to look at kern PR 87506? I found > > the problem while building a jail on my 6.0-RC1 box. When > > setting an alias on a vr device with ifconfig the alias address > > replaces the initial address of the device. marcus@ took a look > > at the problem for me and provided the patch for the vr interface > > which I tested and it resolved the problem. Without the patch I > > can't create a jail that is network accessible. > > > > Marcus also notes in the PR that the rl, sis, ti, and tl may also > > be affected by this bug. If anyone has any other questions or > > needs someone to test any changes to the patch just let me know.=20 > > I only have vr interfaces on my FreeBSD machines though. Thanks. > > > > Tom > > I'm not sure that fix is really the right fix. The patch just > makes vr(4) ignore changes to if_flags while the driver is up.=20 > Probably there is a bug in vr(4)'s handling of alias addresses. I > did just reproduce this on my laptop's rl(4) interface though.=20 > I'll see if I can't figure out what is happening. I'm also seeing this too along with the following. I'm not sure if this is related, but I'm seeing the following on=20 RELENG_6 and CURRENT, but and older RELENG_5 as of ~2 months ago=20 doesn't show this problem. I'm trying to setup my workstation with a normal DHCP'd address and an alias IP for a jail running on the system, but the alias=20 setting wipes out all the other addresses on the interface. in /etc/rc.conf: ifconfig_rl0=3D"DHCP" ifconfig_rl0_alias0=3D"inet 192.168.1.10 netmask 255.255.255.255" I've checked the rc boot order (on RELENG_6 and CURRENT) and it seems=20 correct: netif dhclient netif I narrowed it down to: dhclient rl0 ifconfig rl0 inet 192.168.1.11 netmask 0xffffffff alias [dhclient prints a message here saying connection closed and exiting] All of the other addresses on the card are removed. I'm also seeing this on dc. So thinking it to be a problem in=20 ifconfig I copied over the version from my RELENG_5 box, and that did=20 the same thing...so this seems to be present several of the network=20 drivers in RELENG_6/CURRENT. =2D-=20 Anish Mistry --nextPart2555297.RObWYc2Cof Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (FreeBSD) iD8DBQBDV+GpxqA5ziudZT0RArHkAKDWfTCT/17jcRvrABq5820sKS222gCgzyOm 3/Yra2yZGHXlroR/589wfkI= =S/Bq -----END PGP SIGNATURE----- --nextPart2555297.RObWYc2Cof--
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