From owner-freebsd-current@FreeBSD.ORG Mon Feb 9 10:10:34 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 3E2A016A4CE for ; Mon, 9 Feb 2004 10:10:34 -0800 (PST) Received: from carver.gumbysoft.com (carver.gumbysoft.com [66.220.23.50]) by mx1.FreeBSD.org (Postfix) with ESMTP id 251D743D1F for ; Mon, 9 Feb 2004 10:10:34 -0800 (PST) (envelope-from dwhite@gumbysoft.com) Received: by carver.gumbysoft.com (Postfix, from userid 1000) id 8649A72DBF; Mon, 9 Feb 2004 10:10:26 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) by carver.gumbysoft.com (Postfix) with ESMTP id 811DF72DB5; Mon, 9 Feb 2004 10:10:26 -0800 (PST) Date: Mon, 9 Feb 2004 10:10:26 -0800 (PST) From: Doug White To: Steve Kargl In-Reply-To: <20040207070653.GA28676@troutmask.apl.washington.edu> Message-ID: <20040209100947.K47197@carver.gumbysoft.com> References: <20040205231737.GB17451@troutmask.apl.washington.edu> <20040206231933.GA25826@troutmask.apl.washington.edu> <20040207070653.GA28676@troutmask.apl.washington.edu> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII cc: freebsd-current@freebsd.org Subject: Re: mtrash_ctor panic caused by ACPI and ATAng was Re:Interrupts, ATAng, and wayward pointers, oh my! X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 09 Feb 2004 18:10:34 -0000 On Fri, 6 Feb 2004, Steve Kargl wrote: > Yes, intriguing. I used the better part of 1 day to eliminate > possibilities for the problem. I forgot to mention the problem > does not depend on APIC or no APIC support in the kernel. > > > > PS: No, I can't get a core dump because the disk subsystem isn't > > > ready for a dump when the panics occurred and I can't hook > > > up a serial console. I can panic the machine as needed. > > > > You can say 'set dumpdev=/dev/foo0s1b' in loader to set the dump target. > > > > This doesn't work unless I can get a near instantaneous dump. That is, > db> call dumpsys > returns in under a second. Revision 1.19 of ata-queue.c (note the > typo of ata-queue.h above) reworked the locking of ATA. I suspect > that my laptop is tickling some race that Soren hasn't seen. try 'call doadump()' -- Doug White | FreeBSD: The Power to Serve dwhite@gumbysoft.com | www.FreeBSD.org