From owner-freebsd-net@FreeBSD.ORG Fri Sep 4 15:59:24 2009 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id C791F106568D for ; Fri, 4 Sep 2009 15:59:24 +0000 (UTC) (envelope-from gigabyte.tmn@gmail.com) Received: from mail-fx0-f210.google.com (mail-fx0-f210.google.com [209.85.220.210]) by mx1.freebsd.org (Postfix) with ESMTP id 509A58FC18 for ; Fri, 4 Sep 2009 15:59:24 +0000 (UTC) Received: by fxm6 with SMTP id 6so758958fxm.43 for ; Fri, 04 Sep 2009 08:59:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:reply-to:from:to :cc:references:subject:date:organization:mime-version:content-type :content-transfer-encoding:x-priority:x-msmail-priority:x-mailer :x-mimeole; bh=Y9U7pGTikjT4RX9yO+VV/cmKe8RmseOUwhFJGNDA2+8=; b=Klf8+Oct/5aQswjpq5oQLYueFzH7lKjfVPwLqPGn3tEr5hpjdpzKPgaxnr/6q99M4j LnCxqTZ9AAxm1cb99fQhgHKNSMnbG+o0jgprThrgX/48M5Fc0zNtDe5y4iAhns7+AIbh bI6gLVpfoIbiyU+s4cJ43T8MkIpT3921hXeK0= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:reply-to:from:to:cc:references:subject:date:organization :mime-version:content-type:content-transfer-encoding:x-priority :x-msmail-priority:x-mailer:x-mimeole; b=mIK8XwjBfttQBqflq2T4MO0STzjWLjHoQMQjO2ogNvyqd7WwPDr68dTNRSbrhNrgWx P6GPplZVGK7tNpXLU0gFNkUUzOvQ/h5YXCipPWmh56lsgLNT/c34L8WO7MVoiYHJSrCG b65zC01kzkkzCoewEl6UiWdHHgBM1oWr50AEo= Received: by 10.204.154.131 with SMTP id o3mr9251690bkw.66.1252079962977; Fri, 04 Sep 2009 08:59:22 -0700 (PDT) Received: from dm (51.dynamic-n193.r72.info [91.211.193.51]) by mx.google.com with ESMTPS id 1sm1968109fks.6.2009.09.04.08.59.21 (version=SSLv3 cipher=RC4-MD5); Fri, 04 Sep 2009 08:59:21 -0700 (PDT) Message-ID: <001601ca2d78$aecc4af0$1e010a0a@in72.ru> From: "Dmitriy Zamuraev" To: "Mel Flynn" References: <20090904093907.B61227E854@mailhub.rachie.is-a-geek.net> Date: Fri, 4 Sep 2009 21:59:25 +0600 Organization: Netline NSP MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="koi8-r"; reply-type=original Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3138 Cc: freebsd-net@freebsd.org Subject: Re: [panic] Kernel corruption of pppoe lists X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Dmitriy Zamuraev List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 04 Sep 2009 15:59:24 -0000 I have same problem, and we are not alone. See http://www.freebsd.org/cgi/query-pr.cgi?pr=137881 (PR: kern/137881) You may append to this PR. ----- Original Message ----- From: "Mel Flynn" To: Cc: Sent: Friday, September 04, 2009 3:39 PM Subject: [panic] Kernel corruption of pppoe lists >>Description: > I realize the kernel is a bit old, but it also very hard to reproduce. > Kernel > was up 56 days and this crash happened shortly after a very long connect > time, > hangup by ISP and some renegotiation issues. I can provide the ppp.log of > the > incident if needed. > > What bothers me is the contents of the session list element, preceding the > element > cannot be accessed. Clearly, there is random kernel memory present there, > judging > from ether_dhost and ether_shost. > > #7 0xc06cd0a0 in pppoe_findsession (privp=0xc4258000, wh=Variable "wh" is > not available. > ) > at /data/RELENG_7/src/sys/netgraph/ng_pppoe.c:567 > #8 0xc06ce1a0 in ng_pppoe_rcvdata_ether (hook=0xc41b6380, > item=0xc4256120) > at /data/RELENG_7/src/sys/netgraph/ng_pppoe.c:1612