From owner-freebsd-net@FreeBSD.ORG Mon Dec 10 22:22:36 2012 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id E7047AEB; Mon, 10 Dec 2012 22:22:35 +0000 (UTC) (envelope-from yanegomi@gmail.com) Received: from mail-oa0-f54.google.com (mail-oa0-f54.google.com [209.85.219.54]) by mx1.freebsd.org (Postfix) with ESMTP id 9A0E68FC0C; Mon, 10 Dec 2012 22:22:35 +0000 (UTC) Received: by mail-oa0-f54.google.com with SMTP id n9so3979299oag.13 for ; Mon, 10 Dec 2012 14:22:33 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:cc:content-type; bh=x0xcM9zuZk9bcCSa7Fam6zHpDk0wORQlZwWrvFYczqM=; b=iHsuuMpf5rowce53n8vgUZ/XHoABrGYzYh5pXUxDyMxElWcY/aD1AZIPP6daDwEea7 AEX8AZYPy+aaB0qaFgYr4HZd8HE11qCZT5ZeALacaRi4fcQIe+pGY2tMN37EwwgsIHn1 BM76TQBd/S2+yZBvcpnjsQjAdFCkJYXUO+2gP0n3bZqB9Kn5dDLFNG7cx+fYkA9asetp Agjp9sqxF4PTscKWXBi1fsYI5fOrauFNEMfqxknFpdcVw31i3HZmal126QCbLR2IY9vM iMbsOI2krkQOPr+wNY2JJzP1hkvcutvYnb1u+Fr/yyTfeJLD+GDheGsayultOZsDwYkc D7Mw== MIME-Version: 1.0 Received: by 10.60.172.164 with SMTP id bd4mr7664871oec.51.1355178153559; Mon, 10 Dec 2012 14:22:33 -0800 (PST) Received: by 10.76.143.33 with HTTP; Mon, 10 Dec 2012 14:22:33 -0800 (PST) Date: Mon, 10 Dec 2012 14:22:33 -0800 Message-ID: Subject: "Memory modified after free" - by whom? From: Garrett Cooper To: FreeBSD Current Content-Type: text/plain; charset=ISO-8859-1 Cc: freebsd-net@freebsd.org X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 10 Dec 2012 22:22:36 -0000 I noticed this while checking the logs on one of my test boxes after restarting the network. Any idea where I should start looking into this (has IPv6 enabled but wasn't using it, em/cxgbe/ixgbe interfaces with the ixgbe interfaces lagged previously, but now not)? It looks suspiciously like the same size as a jumbo frame, but I'm not 100% sure if that's the real problem. Thanks, -Garrett Dec 10 14:03:12 wf158 kernel: em0: link state changed to DOWN Dec 10 14:03:13 wf158 kernel: ix0: link state changed to DOWN Dec 10 14:03:13 wf158 kernel: ix0: link state changed to UP Dec 10 14:03:13 wf158 kernel: ix1: link state changed to DOWN Dec 10 14:03:13 wf158 kernel: ix1: link state changed to UP Dec 10 14:03:13 wf158 kernel: ix0: link state changed to DOWN Dec 10 14:03:13 wf158 kernel: ix0: link state changed to UP Dec 10 14:03:15 wf158 kernel: em0: link state changed to UP Dec 10 14:03:15 wf158 dhclient: New IP Address (em0): 10.7.169.89 Dec 10 14:03:15 wf158 dhclient: New Subnet Mask (em0): 255.255.240.0 Dec 10 14:03:15 wf158 dhclient: New Broadcast Address (em0): 10.7.175.255 Dec 10 14:03:15 wf158 dhclient: New Routers (em0): 10.7.160.1 Dec 10 14:03:16 wf158 kernel: ix0: link state changed to DOWN Dec 10 14:03:16 wf158 kernel: ix0: link state changed to UP Dec 10 14:03:31 wf158 kernel: in6_purgeaddr: err=65, destination address delete failed Dec 10 14:03:31 wf158 dhclient[4539]: My address (10.7.169.89) was deleted, dhclient exiting Dec 10 14:03:32 wf158 dhclient[4521]: short write: wanted 20 got 0 bytes Dec 10 14:03:32 wf158 dhclient[4521]: exiting. Dec 10 14:03:33 wf158 kernel: em0: link state changed to DOWN Dec 10 14:03:33 wf158 kernel: ix1: link state changed to DOWN Dec 10 14:03:34 wf158 kernel: ix1: link state changed to UP Dec 10 14:03:34 wf158 kernel: ix1: link state changed to DOWN Dec 10 14:03:34 wf158 kernel: ix1: link state changed to UP Dec 10 14:03:34 wf158 kernel: ix0: link state changed to DOWN Dec 10 14:03:34 wf158 kernel: ix0: link state changed to UP Dec 10 14:03:34 wf158 kernel: ix1: link state changed to DOWN Dec 10 14:03:34 wf158 kernel: ix1: link state changed to UP Dec 10 14:03:36 wf158 kernel: em0: link state changed to UP Dec 10 14:03:36 wf158 dhclient: New IP Address (em0): 10.7.169.89 Dec 10 14:03:36 wf158 dhclient: New Subnet Mask (em0): 255.255.240.0 Dec 10 14:03:36 wf158 dhclient: New Broadcast Address (em0): 10.7.175.255 Dec 10 14:03:36 wf158 dhclient: New Routers (em0): 10.7.160.1 Dec 10 14:05:34 wf158 kernel: Memory modified after free 0xffffff81c016d000(9216) val=ffffffff @ 0xffffff81c016d000 Dec 10 14:05:35 wf158 kernel: Memory modified after free 0xffffff81b5cdc000(9216) val=ffffffff @ 0xffffff81b5cdc000 # uname -a FreeBSD wf158.west.isilon.com 10.0-CURRENT FreeBSD 10.0-CURRENT #1 r+2760369-dirty: Mon Dec 10 08:04:46 PST 2012 root@wf158.west.isilon.com:/usr/obj/usr/src/sys/ISI-GENERIC amd64