From owner-freebsd-stable Thu Dec 20 14:52:38 2001 Delivered-To: freebsd-stable@freebsd.org Received: from mail.hydrologue.com (adsl-63-194-243-48.dsl.lsan03.pacbell.net [63.194.243.48]) by hub.freebsd.org (Postfix) with ESMTP id 999B737B50D for ; Thu, 20 Dec 2001 14:52:23 -0800 (PST) Received: (from bradym@localhost) by mail.hydrologue.com (8.10.1/8.10.0.Beta6) id fBL40O009107; Thu, 20 Dec 2001 20:00:24 -0800 Date: Thu, 20 Dec 2001 20:00:24 -0800 From: Brady Montz Message-Id: <200112210400.fBL40O009107@mail.hydrologue.com> To: Peter Jeremy Cc: Matthew Dillon , Chad David , Richard Nyberg , David Wolfskill , freebsd-stable@FreeBSD.ORG Subject: Re: 4.4-STABLE crashes - suspects new ata-driver over wd-drivers References: <200112172133.fBHLXJg39627@bunrab.catwhisker.org> <20011217144541.A45973@colnta.acns.ab.ca> <20011218094330.A10601@gromit.it.su.se> <200112180857.fBI8vNh68173@apollo.backplane.com> <20011218023630.A5190@ranger.acns.ab.ca> <200112181920.fBIJKRt70523@apollo.backplane.com> <200112190757.fBJ7veY02579@mail.hydrologue.com> <200112190732.fBJ7WFQ86868@apollo.backplane.com> <87u1ulq1a8.fsf@balestra.org> <200112202147.fBKLlGg78745@apollo.backplane.com> <20011221094727.F73243@gsmx07.alcatel.com.au> Gcc: nnml+archive:misc-mail Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG --text follows this line-- Peter Jeremy writes: > On 2001-Dec-20 13:47:16 -0800, Matthew Dillon wrote: > > The string 'pre-fetch' is sitting right smack in the middle of the > > VM_PAGE!!!!!!!. The entire vm_page is corrupt, though the vm_page's > > surrounding it appear to be ok. > > > > When I look for 'pre-fetch' in the raw vmcore file I see it occuring > > all over the place. > > Any guess where it's coming from? I can't find that string anywhere > in the -stable source code or kernel - which suggests that it's being > read from the disk. I induced the crash by running "make clean; make buildworld" in one infinite loop and "portsdb -Uu" in another. That string occurs in a bunch of makefiles in /usr/ports. Some of the occurences in the core are clearly from them, but many of them are surrounded by binary data. I recursively grepped /usr/{src,obj,bin,ports} and /usr/local/{bin,lib} and didn't find any binary files with that string. My guess then is that it's from the memory image of a make process. -- Brady Montz bradym@balestra.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message