From owner-svn-src-head@FreeBSD.ORG Wed Mar 24 02:23:00 2010 Return-Path: Delivered-To: svn-src-head@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id BD002106566C; Wed, 24 Mar 2010 02:23:00 +0000 (UTC) (envelope-from onemda@gmail.com) Received: from mail-ww0-f54.google.com (mail-ww0-f54.google.com [74.125.82.54]) by mx1.freebsd.org (Postfix) with ESMTP id A91E08FC1B; Wed, 24 Mar 2010 02:22:59 +0000 (UTC) Received: by wwf26 with SMTP id 26so1437549wwf.13 for ; Tue, 23 Mar 2010 19:22:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type; bh=qfYnfqEOKklY/7aEhLyskpPotHljiWs3A4ri216tTpI=; b=X9k8XEBr9rH43YYc01+tcWO3QG0l3u0AbbwE5mhVzz5FZKB3CVyf1qu3amVnOTQpmB KZ+WJ612nKRDD96a58rg+mjHPa15YSaEsNnaEIEMYvvQe0YtdGQF+DKAohbEFrQLVY3o JY1WXjLrpRpJOrxDRhQWaqcctYYDyYSwlpcSU= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=dPfl2Z4vgj5iT7w2OJWm7E5jhU0/AlGPr6TOGKA1dkYRCA3MWgMvdWfDnhYl8cUfBb 2nohalHQYuWjBBdv355fVrUMlyURNOccEDvyS3/IkM+6s9HWRkk64CbgamNoZ5r+rbdI yzt19M4wcJA0i86ZIKdNP0U05O9bUpJ+5KYbU= MIME-Version: 1.0 Received: by 10.216.87.67 with SMTP id x45mr942426wee.18.1269397378290; Tue, 23 Mar 2010 19:22:58 -0700 (PDT) In-Reply-To: <20100323205117.GG2415@deviant.kiev.zoral.com.ua> References: <201003221152.o2MBqs9M012769@svn.freebsd.org> <201003220849.36246.jhb@freebsd.org> <20100322152334.GA24534@sandvine.com> <20100323192131.GF32142@hoeg.nl> <20100323200253.GF2415@deviant.kiev.zoral.com.ua> <3a142e751003231335x58179a0aqcbd6ea328c04409d@mail.gmail.com> <20100323205117.GG2415@deviant.kiev.zoral.com.ua> Date: Wed, 24 Mar 2010 03:22:57 +0100 Message-ID: <3a142e751003231922q39386b7elb6cd6945652a7291@mail.gmail.com> From: Paul B Mahol To: Kostik Belousov Content-Type: text/plain; charset=ISO-8859-1 Cc: Ed Schouten , src-committers@freebsd.org, Ed Maste , John Baldwin , svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r205444 - head/sys/i386/i386 X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 24 Mar 2010 02:23:00 -0000 On 3/23/10, Kostik Belousov wrote: > On Tue, Mar 23, 2010 at 09:35:09PM +0100, Paul B Mahol wrote: >> On 3/23/10, Kostik Belousov wrote: >> > On Tue, Mar 23, 2010 at 08:21:31PM +0100, Ed Schouten wrote: >> >> * Ed Maste wrote: >> >> > I was just about to follow up with a comment to that effect. We do >> >> > want >> >> > it to become a panic, but I would prefer to hold off until we address >> >> > the known issue with padlock(4). >> >> >> >> I have seen this message appear when using the ndisulator as well. How >> >> are we going to solve it in this case? Could the ndisulator be extended >> >> to prepare a FPU context using kib's new API? >> > >> > I looked at http://msdn.microsoft.com/en-us/library/aa489566.aspx >> > after someone mentioned ndisulator. It seems that windows requires >> > that i386 drivers carefully use braces for use of FPU, while amd64 >> > code allowed to use it freely. That suggests that windows clears >> > TS on kernel mode entry or driver calls, that seems to be too >> > wastefull. >> > >> > I would very much appreciate the help with changing both ndis and >> > padlock to use fpu_kern_enter/leave KPI, since I do not use them. >> > I need some time to polish the patch before. >> > >> >> I saw fpudna only on amd64, but I never managed to get ndisulator >> fully working on amd64 (at least with broadcom card/driver). > > I cannot find KeSaveFloatingPointState symbol defined by ndisulator. > Could it be that it is a macro or inline function that expands to > proper assembly for i386, and nop on amd64 ? That would explain > your observation. I have never found any driver that reports such symbol missing when loaded.