From owner-freebsd-arm@FreeBSD.ORG Mon May 6 13:41:55 2013 Return-Path: Delivered-To: freebsd-arm@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by hub.freebsd.org (Postfix) with ESMTP id 33F6D52D for ; Mon, 6 May 2013 13:41:55 +0000 (UTC) (envelope-from cognet@ci0.org) Received: from kanar.ci0.org (unknown [IPv6:2a01:e0b:1:150:ca0a:a9ff:fef1:a4c9]) by mx1.freebsd.org (Postfix) with ESMTP id CB76068E for ; Mon, 6 May 2013 13:41:54 +0000 (UTC) Received: from kanar.ci0.org (pluxor@localhost [127.0.0.1]) by kanar.ci0.org (8.14.5/8.14.5) with ESMTP id r46DfUxK060163; Mon, 6 May 2013 15:41:30 +0200 (CEST) (envelope-from cognet@ci0.org) Received: (from doginou@localhost) by kanar.ci0.org (8.14.5/8.14.5/Submit) id r46DfTgk060162; Mon, 6 May 2013 15:41:29 +0200 (CEST) (envelope-from cognet@ci0.org) X-Authentication-Warning: kanar.ci0.org: doginou set sender to cognet@ci0.org using -f Date: Mon, 6 May 2013 15:41:29 +0200 From: Olivier Houchard To: Grzegorz Bernacki Subject: Re: RFC: Patches with AXP support and pmap&smp fixes. Message-ID: <20130506134129.GA60131@ci0.org> References: <517E8610.5050204@semihalf.com> <20130430142701.5bbfec2b@bender.lan> <20130430143311.GA71966@ci0.org> <518775B4.1010308@semihalf.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <518775B4.1010308@semihalf.com> User-Agent: Mutt/1.5.21 (2010-09-15) Cc: freebsd-arm@freebsd.org X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Porting FreeBSD to the StrongARM Processor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 06 May 2013 13:41:55 -0000 On Mon, May 06, 2013 at 11:19:48AM +0200, Grzegorz Bernacki wrote: > > Hi, > > Our patch fixes only initialization of pcpu in pcpu_init(). In 4 cores > setup it is possible the at least two cores simultaneously updating > queue of pcpus which causes corruption. > I am not aware of any other problems with SMP. Let us try setup with > WITNESS enabled and we'll see if we have the same problem. > Olivier, could you share your patch? In case we have the problem we > would like to have it. > Hi, Sure I will dust it off, and send it. Maybe not before Sunday though, I'll be mostly MIA for the week. I'm quite interested in you guys having a look at it. Regards, Olivier