From owner-freebsd-net@FreeBSD.ORG Fri Aug 8 01:37:11 2008 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 9F5EB106564A for ; Fri, 8 Aug 2008 01:37:11 +0000 (UTC) (envelope-from mo0118@gmail.com) Received: from an-out-0708.google.com (an-out-0708.google.com [209.85.132.249]) by mx1.freebsd.org (Postfix) with ESMTP id 583938FC1E for ; Fri, 8 Aug 2008 01:37:11 +0000 (UTC) (envelope-from mo0118@gmail.com) Received: by an-out-0708.google.com with SMTP id b33so152701ana.13 for ; Thu, 07 Aug 2008 18:37:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to :subject:mime-version:content-type; bh=+NBcSX4VrUUaSq1vJsmsovSNVeiK1/Li2l6wcTU6zY8=; b=vM8M1hOkAVsomcK/K/h60tBmXjinTzfJaNzcWr6moE6a2aFfaC+zhjwiqLn5a0v8ub 8QgUOUpO3Lu6wTdl5yWdAC8sDKZsxf/gFhUq/kpY8R7DG8NwgDispSurlmGtPDB4Ujd+ LX8zLWVnJcCEt9tpNNxS8ogiVHZcVMvwRyPyQ= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:mime-version:content-type; b=p+LQbDQgFrFiJXDKLQ/eH9/lRLvbSGznWRja2udZvpqTj2rQzaHFnrMjbRzIQz6p3N lt8tZ4fJL1TM6nXGv3gqo5sphetPpxnk4pYDE66hYlzx9mY8uTwiWnBOeSmGgSjKDa5R ph/Uvetwwl4LW+LDVHB9JOeBor/sKmaXCTvVc= Received: by 10.100.142.4 with SMTP id p4mr3125290and.23.1218157901154; Thu, 07 Aug 2008 18:11:41 -0700 (PDT) Received: by 10.100.191.17 with HTTP; Thu, 7 Aug 2008 18:11:41 -0700 (PDT) Message-ID: Date: Fri, 8 Aug 2008 01:11:41 +0000 From: "Jeff Mo" To: damien.saucez@uclouvain.be, freebsd-net@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: Subject: Question about "kern/125239: [gre] kernel crash when using gre" X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 08 Aug 2008 01:37:11 -0000 Hi Sir, I am trying to dive deeper into the stack frames of the following bug: kern/125239: [gre] kernel crash when using greI use FreeBSD 7.0 and already reproduce it, but I am not sure about what the following sentence means: "ifp=Variable "ifp" is not available"? I will be very thankful if anyone can give me some instruction. Regards Jeff ================== (kgdb) f 7 #7 0xc082263b in in_ifinit (ccc. ) at /usr/src/sys/netinet/in.c:817 817 if (rtinitflags(ia)) { (kgdb) info f Stack level 7, frame at 0xd22f3b58: eip = 0xc082263b in in_ifinit (/usr/src/sys/netinet/in.c:817); saved eip 0xc0823607 called by frame at 0xd22f3bb8, caller of frame at 0xd22f3ad4 source language c. Arglist at 0xd22f3b50, args: ifp=Variable "ifp" is not available.