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Date:      Fri, 18 Dec 2009 17:29:38 +0000
From:      "Robert N. M. Watson" <rwatson@freebsd.org>
To:        Linda Messerschmidt <linda.messerschmidt@gmail.com>
Cc:        freebsd-hackers@freebsd.org
Subject:   Re: 8.0-RELEASE-p1 Panic "panic: sbdrop"
Message-ID:  <9BE780E7-4114-43DF-BA5E-3517F2E28D21@freebsd.org>
In-Reply-To: <237c27100912171025l3525da40m4abb526dd31ef067@mail.gmail.com>
References:  <237c27100912151140o1b227bb1pdaa65f5aee13ab5b@mail.gmail.com> <alpine.BSF.2.00.0912161149570.36302@fledge.watson.org> <237c27100912171025l3525da40m4abb526dd31ef067@mail.gmail.com>

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On 17 Dec 2009, at 18:25, Linda Messerschmidt wrote:

> On Wed, Dec 16, 2009 at 6:52 AM, Robert Watson <rwatson@freebsd.org> =
wrote:
>> Could you tell us a bit more about the network configuration -- =
especially,
>> are you using any tunneling software (such as ipsec), netgraph, or =
other
>> less commonly used network features?  Are you using accept filters?
>=20
> Let's see, we are using a couple of simple PF rdr rules in conjunction
> with squid and yes, we are using accf_http with it as well.  Other
> than that, nothing uncommon.
>=20
> The ethernet is Intel onboard, em0 and em1.  Web traffic comes in on
> em0, gets redirected to squid, and origin server requests go out on
> e1.  It crashed under relatively light traffic, about 3000 requests
> per minute.

Is this something you might be able to reproduce on a non-production =
system?

Might you be able to test  on 8.0 whether, without accf_http, the =
problem goes away?

(I'm not sure it makes life easier for you, but -- you should be able to =
use an 8.0 kernel with a 7.x userspace, making the cost of rolling =
forward/back to test things a bit easier perhaps)

Thanks,

Robert=



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