From owner-freebsd-current@FreeBSD.ORG Tue Jul 20 04:01:58 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 1740416A4CE for ; Tue, 20 Jul 2004 04:01:58 +0000 (GMT) Received: from freebsd3.cimlogic.com.au (adsl-20-121.swiftdsl.com.au [218.214.20.121]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4CED143D2F for ; Tue, 20 Jul 2004 04:01:57 +0000 (GMT) (envelope-from jb@cimlogic.com.au) Received: by freebsd3.cimlogic.com.au (Postfix, from userid 102) id ED7B36AC0C; Tue, 20 Jul 2004 14:01:54 +1000 (EST) Date: Tue, 20 Jul 2004 14:01:54 +1000 From: John Birrell To: Maxim Maximov Message-ID: <20040720040153.GA21144@freebsd3.cimlogic.com.au> References: <40FC3090.9060305@freebsd.org> <40FC92C8.50604@mcsi.pp.ru> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <40FC92C8.50604@mcsi.pp.ru> User-Agent: Mutt/1.4.2.1i cc: freebsd-current@freebsd.org Subject: Re: HEADS UP [Re: thread+preemption stability improvement] 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: Tue, 20 Jul 2004 04:01:58 -0000 On Tue, Jul 20, 2004 at 07:34:32AM +0400, Maxim Maximov wrote: > I think it is needed :( Things actually get _much_ better, now I've > been able to use my big IMAP folders, but still after applying the patch > and working about an hour mozilla freezes with the same sympthoms (cpu > fan gets spinning faster and faster as if cpu temperature is raising). > Are there any ways I can help track this down further? > Preemption is enabled, of course. My kernel's config is latest > GENERIC with these additions: Even with PREEMPTION disabled, current freezes for me with a threaded application with lots of sendfiles in progress. I haven't figured out the set of conditions that actually trigger the freeze other than it never freezes if I have no libpthread application running (and loaded to some degree). I wonder if anyone has had current under load and if so, in what situations. It looks like this code base is a long way away from being ready for a stable branch. Grumble. The gap between 4 and 5 is too big. Not happy. At some point people need to concentrate on stability. I would concede API changes for stability any day. Every day. -- John Birrell