From owner-freebsd-net@freebsd.org Tue Feb 7 15:18:41 2017 Return-Path: Delivered-To: freebsd-net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 34C4FCD51C1 for ; Tue, 7 Feb 2017 15:18:41 +0000 (UTC) (envelope-from ler@FreeBSD.org) Received: from thebighonker.lerctr.org (thebighonker.lerctr.org [IPv6:2001:470:1f0f:3ad:223:7dff:fe9e:6e8a]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "thebighonker.lerctr.org", Issuer "COMODO RSA Domain Validation Secure Server CA" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 15876130D for ; Tue, 7 Feb 2017 15:18:41 +0000 (UTC) (envelope-from ler@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lerctr.org; s=lerami; h=Message-ID:Subject:To:From:Date:Content-Transfer-Encoding: Content-Type:MIME-Version:Sender:Reply-To:Cc:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: In-Reply-To:References:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=HCUactyXaRh+aDLS9F/A04AURz82pTsxGes2wQ3kBrM=; b=AiII+0/3hvQ9GOb3+H/xshnQIl ZH2XwlfSDsbfFRdOqXuSIbbJk3/pG2IfWnAsmIOp0Hb7xWo7El9BMcMAz/5Ii9HtUQc/Lg2iFlwK6 l3Ms79hJH+PWWG4kljKOvpfMtmK4XXeQH7+E5JXPCHUvAGb2U4CH5LImh6X/mYQSjLTk=; Received: from thebighonker.lerctr.org ([2001:470:1f0f:3ad:223:7dff:fe9e:6e8a]:40142 helo=webmail.lerctr.org) by thebighonker.lerctr.org with esmtpsa (TLSv1.2:ECDHE-RSA-AES128-GCM-SHA256:128) (Exim 4.88 (FreeBSD)) (envelope-from ) id 1cb7XU-000Kiu-CM for freebsd-net@freebsd.org; Tue, 07 Feb 2017 09:18:40 -0600 Received: from proxy.na.alcatel-lucent.com ([135.245.48.84]) by webmail.lerctr.org with HTTP (HTTP/1.1 POST); Tue, 07 Feb 2017 09:18:40 -0600 MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Date: Tue, 07 Feb 2017 09:18:40 -0600 From: Larry Rosenman To: Freebsd net Subject: panic with dhcp assigned jumbo frames/bce interface Message-ID: X-Sender: ler@FreeBSD.org User-Agent: Roundcube Webmail/1.2.3 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 07 Feb 2017 15:18:41 -0000 I attempted to set my network up with jumbo frames, and have the MTU set via DHCP option 26 (9000), and I get my bce0 device bouncing up & down like a yo-yo, and a panic with a recursed lock. I can probably get a picture of the panic, but wanted to get this out there. (-CURRENT, both the January snap and the February snap, AMD64.) -- Larry Rosenman http://people.freebsd.org/~ler Phone: +1 214-642-9640 E-Mail: ler@FreeBSD.org US Mail: 17716 Limpia Crk, Round Rock, TX 78664-7281