From owner-freebsd-ppc@FreeBSD.ORG Wed Feb 25 18:31:14 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 8AC811065672 for ; Wed, 25 Feb 2009 18:31:14 +0000 (UTC) (envelope-from nwhitehorn@freebsd.org) Received: from mail.icecube.wisc.edu (trout.icecube.wisc.edu [128.104.255.119]) by mx1.freebsd.org (Postfix) with ESMTP id 5FB188FC27 for ; Wed, 25 Feb 2009 18:31:14 +0000 (UTC) (envelope-from nwhitehorn@freebsd.org) Received: from localhost (localhost.localdomain [127.0.0.1]) by mail.icecube.wisc.edu (Postfix) with ESMTP id 7C3DF5823D; Wed, 25 Feb 2009 12:31:13 -0600 (CST) X-Virus-Scanned: amavisd-new at icecube.wisc.edu Received: from mail.icecube.wisc.edu ([127.0.0.1]) by localhost (trout.icecube.wisc.edu [127.0.0.1]) (amavisd-new, port 10030) with ESMTP id jagV+REP97kJ; Wed, 25 Feb 2009 12:31:13 -0600 (CST) Received: from wanderer.tachypleus.net (i3-dhcp-172-16-55-200.icecube.wisc.edu [172.16.55.200]) by mail.icecube.wisc.edu (Postfix) with ESMTP id 563275823C; Wed, 25 Feb 2009 12:31:13 -0600 (CST) Message-ID: <49A58E70.4010001@freebsd.org> Date: Wed, 25 Feb 2009 12:31:12 -0600 From: Nathan Whitehorn User-Agent: Thunderbird 2.0.0.19 (X11/20090126) MIME-Version: 1.0 To: Garrett Cooper References: <49A57020.1080603@freebsd.org> <11D16AB8-F705-4464-B35B-07A24E26B5E5@gmail.com> In-Reply-To: <11D16AB8-F705-4464-B35B-07A24E26B5E5@gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit 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 18:31:14 -0000 Garrett Cooper wrote: > 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 I don't think so. Running a kernel with no USB in it still crashed, along with one with no ATA, which has also seen a lot of changes lately. -Nathan