From owner-freebsd-ppc@FreeBSD.ORG Wed Feb 25 17:31:04 2009 Return-Path: Delivered-To: freebsd-ppc@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id A2C6A1065670; Wed, 25 Feb 2009 17:31:04 +0000 (UTC) (envelope-from yanefbsd@gmail.com) Received: from mxout5.cac.washington.edu (mxout5.cac.washington.edu [140.142.32.135]) by mx1.freebsd.org (Postfix) with ESMTP id 78C2F8FC0C; Wed, 25 Feb 2009 17:31:04 +0000 (UTC) (envelope-from yanefbsd@gmail.com) Received: from smtp.washington.edu (smtp.washington.edu [140.142.33.7] (may be forged)) by mxout5.cac.washington.edu (8.14.3+UW08.09/8.14.3+UW09.01) with ESMTP id n1PHV36o020740 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 25 Feb 2009 09:31:04 -0800 X-Auth-Received: from [192.168.10.3] (adsl-99-147-148-174.dsl.pltn13.sbcglobal.net [99.147.148.174]) (authenticated authid=youshi10) by smtp.washington.edu (8.14.3+UW08.09/8.14.3+UW09.01) with ESMTP id n1PHV31W027584 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NOT); Wed, 25 Feb 2009 09:31:03 -0800 Message-Id: <11D16AB8-F705-4464-B35B-07A24E26B5E5@gmail.com> From: Garrett Cooper To: Nathan Whitehorn In-Reply-To: <49A57020.1080603@freebsd.org> Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (Apple Message framework v930.3) Date: Wed, 25 Feb 2009 09:36:17 -0800 References: <49A57020.1080603@freebsd.org> X-Mailer: Apple Mail (2.930.3) X-PMX-Version: 5.5.0.356843, Antispam-Engine: 2.6.1.350677, Antispam-Data: 2009.2.25.171622 X-Uwash-Spam: Gauge=IIIIIII, Probability=8%, Report='FORGED_FROM_GMAIL 0.1, BODY_SIZE_1000_1099 0, BODY_SIZE_2000_LESS 0, BODY_SIZE_5000_LESS 0, BODY_SIZE_7000_LESS 0, __BOUNCE_CHALLENGE_SUBJ 0, __CT 0, __CTE 0, __CT_TEXT_PLAIN 0, __FRAUD_419_WEBMAIL 0, __FRAUD_419_WEBMAIL_FROM 0, __FROM_GMAIL 0, __HAS_MSGID 0, __HAS_X_MAILER 0, __MIME_TEXT_ONLY 0, __MIME_VERSION 0, __SANE_MSGID 0' Cc: FreeBSD PowerPC ML Subject: Re: Brokenness in HEAD X-BeenThere: freebsd-ppc@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Porting FreeBSD to the PowerPC List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 25 Feb 2009 17:31:05 -0000 On Feb 25, 2009, at 8:21 AM, Nathan Whitehorn wrote: > Something seems to currently be quite broken in HEAD for PowerPC, at > least on the AIM platform. I'm getting almost immediate panics all > over the place in the kernel, usually indicating memory corruption > somehow (faults on bogus addresses, illegal instructions, etc...). > This is a heads-up to those thinking of updating systems or who > might know what happened. > > The change is on order a week old, and I believe newer than the > 20th. I have not done a full binary search yet, but it is not > related to the following (checked by selective reversion of bits of > the tree, or disabling bits): > - USB code > - ATA code > - Anything in sys/powerpc (the Altivec import in particular) > - Any changes to kernel compile flags or the contents of /usr/src/ > share/mk > > The panics seem to correlated with file system use (either UFS or > NFS), but that may just be testing more code paths than a pure > computational load. > -Nathan Could this be related to the USB4BSD changes? -Garrett