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Date:      Thu, 30 May 2019 01:46:32 +1000 (EST)
From:      Bruce Evans <brde@optusnet.com.au>
To:        =?UTF-8?Q?Andr=C3=A9_S=2E_Almeida?= <andre@andre.adm.br>
Cc:        freebsd-bugs@freebsd.org
Subject:   Re: Miscommunication when changing media interface
Message-ID:  <20190530013604.H1771@besplex.bde.org>
In-Reply-To: <CADsrzyb2w6bqVwqk3cyYc%2BAJM9BMwZBcRUgrcVp36AUYHmAmtg@mail.gmail.com>
References:  <CADsrzyb2w6bqVwqk3cyYc%2BAJM9BMwZBcRUgrcVp36AUYHmAmtg@mail.gmail.com>

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On Wed, 29 May 2019, [UTF-8] Andr=C3=A9 S. Almeida wrote:

> When the network interface media "em0" is changed the communication stops
> working.
>
> To reproduce the problem simply execute:
>
> ifconfig em0 media autoselect
>
> If you change "autoselect" to any other media, the same problem happens.
>
> I am using FreeBSD 12.0 with the last stable kernel.

iflib still doesn't stop the interface when doing media changes, even in
-current.  I use the following fix.

XX Index: iflib.c
XX =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
XX --- iflib.c=09(revision 332488)
XX +++ iflib.c=09(working copy)
XX @@ -2232,7 +2234,7 @@
XX=20
XX  =09CTX_LOCK(ctx);
XX  =09if ((err =3D IFDI_MEDIA_CHANGE(ctx)) =3D=3D 0)
XX -=09=09iflib_init_locked(ctx);
XX +=09=09iflib_if_init_locked(ctx);
XX  =09CTX_UNLOCK(ctx);
XX  =09return (err);
XX  }

The corresponding bug for resume was fixed in r342855.

Bruce
From owner-freebsd-bugs@freebsd.org  Wed May 29 17:22:29 2019
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Subject: [Bug 232313] GCE image size is now > 30 GB, above free quota
Date: Wed, 29 May 2019 17:22:25 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D232313

--- Comment #31 from Glen Barber <gjb@FreeBSD.org> ---
(In reply to Kirk McKusick from comment #30)
> (In reply to Danilo G. Baio from comment #29)
> The issue is that there is no growfs_enable.

Oddly, growfs_enable is set in the rc.conf on the raw image resulting from =
the
build.

 # cat /etc/rc.conf
 hostname=3D"freebsd"
 ntpd_enable=3DYES
 sshd_enable=3DYES
 growfs_enable=3DYES
 firstboot_pkgs_enable=3DYES
 firstboot_freebsd_update_enable=3DYES
 google_startup_enable=3DYES
 google_accounts_daemon_enable=3DYES
 google_clock_skew_daemon_enable=3DYES
 google_instance_setup_enable=3DYES
 google_network_daemon_enable=3DYES
 dumpdev=3D"AUTO"
 ifconfig_DEFAULT=3D"SYNCDHCP mtu 1460"
 ntpd_sync_on_start=3D"YES"
 # need to fill in something here
 #firstboot_pkgs_list=3D""
 panicmail_autosubmit=3D"YES"

So, I'm scratching my head over this at the moment...

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