From owner-freebsd-current@FreeBSD.ORG Sat Jan 8 03:44:27 2005 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 594BD16A4CE for ; Sat, 8 Jan 2005 03:44:27 +0000 (GMT) Received: from troutmask.apl.washington.edu (troutmask.apl.washington.edu [128.208.78.105]) by mx1.FreeBSD.org (Postfix) with ESMTP id 30F6143D31 for ; Sat, 8 Jan 2005 03:44:27 +0000 (GMT) (envelope-from sgk@troutmask.apl.washington.edu) Received: from troutmask.apl.washington.edu (localhost [127.0.0.1]) j083iOqY094391; Fri, 7 Jan 2005 19:44:24 -0800 (PST) (envelope-from sgk@troutmask.apl.washington.edu) Received: (from sgk@localhost)j083iOT9094390; Fri, 7 Jan 2005 19:44:24 -0800 (PST) (envelope-from sgk) Date: Fri, 7 Jan 2005 19:44:24 -0800 From: Steve Kargl To: Xin LI Message-ID: <20050108034424.GA94365@troutmask.apl.washington.edu> References: <41DF253C.5040705@fer.hr> <20050108005540.GB93568@troutmask.apl.washington.edu> <20050108030707.GA3656@frontfree.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20050108030707.GA3656@frontfree.net> User-Agent: Mutt/1.4.2.1i cc: current@freebsd.org cc: Ivan Voras Subject: Re: MFC wishlist 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: Sat, 08 Jan 2005 03:44:27 -0000 On Sat, Jan 08, 2005 at 11:07:07AM +0800, Xin LI wrote: > On Fri, Jan 07, 2005 at 04:55:40PM -0800, Steve Kargl wrote: > > On Sat, Jan 08, 2005 at 01:11:40AM +0100, Ivan Voras wrote: > > > It's been a while now and (judging from this list at least), people are > > > not complaining about ULE, so maybe (with re@ approval) the fix & > > > supporting infrastructure could be brought to RELENG_5? > > > > > > > That's not a good idea. I can lock up ULE+PREEMPTION on > > a dual amd64 system within 30 minutes. The system is > > runnnig X11 and normally firefox (or other threaded > > app) and it simply freezes. No panic. No keyboard > > response. Nothing. > > This is observed in pre-5.3RELEASE CURRENT, but I thought Jeff has > already fixed it in -CURRENT. I don't have dual amd64 system to do > such experiments, are you sure you are talking about the latest > 6-CURRENT, or just 5.3? > Yes, I'm talking about 6-CURRENT. My last kernel/world build is 04 Jan 05. I can only invoke the problem with X11 running, and I currently don't have a serial console on this system. I'm guessing that I hit a deadlock (or livelock). -- Steve