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Date:      Mon, 7 Mar 2011 12:37:51 +0000
From:      Tom Evans <tevans.uk@googlemail.com>
To:        "Patrick M. Hausen" <hausen@punkt.de>
Cc:        freebsd-stable <freebsd-stable@freebsd.org>
Subject:   Re: Disable probing of bge1?
Message-ID:  <AANLkTim3GzjKvWcFJ%2BgmPSpA4rCcFRweTq9zF0TtyVLa@mail.gmail.com>
In-Reply-To: <B9B3E34F-AE93-41AB-A5F4-732B60A7F35A@punkt.de>
References:  <B9B3E34F-AE93-41AB-A5F4-732B60A7F35A@punkt.de>

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On Mon, Mar 7, 2011 at 12:26 PM, Patrick M. Hausen <hausen@punkt.de> wrote:
> Hi, all,
>
> I just discovered a minor problem when updating some rather dated
> systems from FreeBSD 6.x to 7.x or 8.x.
>
> The servers are Fujitsu Technology Solutions (former Fujitsu-Siemens)
> RX100 S4. The current generation of the same system is RX100 S6, so this
> is two generations old. Some of them still run fine in our datacenter, th=
ough.
>
> While the S5 and S6 series features two gigabit ports and an additional
> network interface for out of band management (called iRMC, similar to HP'=
s iLO),
> the S4 has only two gigabit ports and the iRMC interface is piggybacked t=
o
> one of them.
>
> In our standard setup we disable the first interface in the BIOS. If you =
do this,
> the physical port is available as a dedicated management interface to the=
 iRMC
> and only the second IF is probed by FreeBSD 6.x as bge0.
>
> Now I try to PXE boot an identically configured system via the remote ser=
ial
> console with FreeBSD 7. Everything runs fine, until the kernel probes the
> network interfaces. The last thing I see are messages about successful
> probing of both bge0 and bge1 and then my remote management connection
> and my console are gone.
>
> I have to reset the BMC by literally pulling the power to get the iRMC ba=
ck.
>
> Is it possible to use some device.hints entry to prohibit the probing of =
bge1?
> I think that would be the easiest solution to the problem? Other suggesti=
ons
> are of course welcome. I can provide more config details and dmesg output
> if needed.
>
> Thanks,
> Patrick

Maybe this loader tunable will help:
     hw.bge.allow_asf
         Allow the ASF feature for cooperating with IPMI.  Can cause sys=E2=
=80=90
         tem lockup problems on a small number of systems.  Disabled by
         default.

Cheers

Tom



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