From owner-freebsd-current@FreeBSD.ORG Thu Jun 5 05:22:06 2003 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 C432C37B401 for ; Thu, 5 Jun 2003 05:22:06 -0700 (PDT) Received: from gravy.homeunix.net (pool-151-197-48-53.phil.east.verizon.net [151.197.48.53]) by mx1.FreeBSD.org (Postfix) with ESMTP id F32ED43FBD for ; Thu, 5 Jun 2003 05:22:05 -0700 (PDT) (envelope-from bleez@verizon.net) Received: from gravy.homeunix.net (gravy.homeunix.net [192.168.1.2]) by gravy.homeunix.net (8.12.9/8.12.9) with ESMTP id h55CM2eC000499; Thu, 5 Jun 2003 08:22:02 -0400 (EDT) (envelope-from bleez@verizon.net) Date: Thu, 5 Jun 2003 08:22:02 -0400 (EDT) From: Bryan Liesner To: Terry Lambert In-Reply-To: <3EDF250C.F79876F7@mindspring.com> Message-ID: <20030605073853.Y453@gravy.homeunix.net> References: <20030604021752.Y69975-100000@mail.chesapeake.net> <3EDF250C.F79876F7@mindspring.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII cc: Jeff Roberson cc: current@freebsd.org cc: Bryan Liesner Subject: Re: umtx/libthr SMP fixes. 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: Thu, 05 Jun 2003 12:22:07 -0000 On Thu, 5 Jun 2003, Terry Lambert wrote: > As I said: I still think there is a lost serialization here > that's at the root of the problem. I can't really dedicate > the equipment I have here to reproducing the issue at this > time, or I'd track down the race I think may be happening. > > -- Terry The original panic in kern/52718 is no longer reproduceable for me at this time. After Jeff's latest changes, the panic moved from boot time to panicking when I did an init 6. I could _not_ reproduce the new panic if I built a kernel with DDB, but a DDBless kernel would panic every time after init 6. Needles to say, that makes things really tough to track down... After shit-canning the acpi module, it doesn't panic at all. I'm sure the race conditions are still lying in wait, but due to a lack of interest and the incredulous attitude of most on the mailing list, I'm going to forget about it for the time being. ACPI has always worked fine on my system, and I'm probably masking problems by not loading the module. Since I'm running a desktop system here, acpi doesn't really buy me anything, so apm is back in my kernel. -Bryan