From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with archive (Exim 4.43) id 1Mi74O-0001QW-Hn for mharc-grub-devel@gnu.org; Mon, 31 Aug 2009 09:37:16 -0400 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1Mi74M-0001Pt-59 for grub-devel@gnu.org; Mon, 31 Aug 2009 09:37:14 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1Mi74H-0001PO-5y for grub-devel@gnu.org; Mon, 31 Aug 2009 09:37:13 -0400 Received: from [199.232.76.173] (port=46673 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Mi74G-0001PL-Vy for grub-devel@gnu.org; Mon, 31 Aug 2009 09:37:09 -0400 Received: from posti7.jyu.fi ([130.234.4.44]:35169) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1Mi74G-0005Xv-Bi for grub-devel@gnu.org; Mon, 31 Aug 2009 09:37:08 -0400 Received: from localhost (localhost.localdomain [127.0.0.1]) by posti7.jyu.fi (8.13.8/8.13.8) with ESMTP id n7VDb2Z8015821; Mon, 31 Aug 2009 16:37:02 +0300 X-Virus-Scanned: amavisd-new at cc.jyu.fi Received: from posti7.jyu.fi ([127.0.0.1]) by localhost (posti7.jyu.fi [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id oJetX4Wq5-II; Mon, 31 Aug 2009 16:36:59 +0300 (EEST) Received: from [130.234.78.125] (semyol-329-b.ktl.jyu.fi [130.234.78.125]) (authenticated bits=0) by posti7.jyu.fi (8.13.8/8.13.8) with ESMTP id n7VDawPU015816; Mon, 31 Aug 2009 16:36:59 +0300 Message-ID: <4A9BD1F3.6000008@peda.net> Date: Mon, 31 Aug 2009 16:36:51 +0300 From: Mikko Rantalainen User-Agent: Thunderbird 2.0.0.23 (X11/20090817) MIME-Version: 1.0 To: The development of GRUB 2 References: <20090716155631.GE6771@thorin> In-Reply-To: X-Enigmail-Version: 0.95.7 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enigDC5A5EE977E8C143D2B7DA85" X-detected-operating-system: by monty-python.gnu.org: GNU/Linux 2.6 (newer, 3) Subject: Re: [PATCH] reset USB controller X-BeenThere: grub-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: The development of GRUB 2 List-Id: The development of GRUB 2 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 31 Aug 2009 13:37:14 -0000 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigDC5A5EE977E8C143D2B7DA85 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Vladimir 'phcoder' Serbinenko wrote: > On Thu, Jul 16, 2009 at 5:56 PM, Robert Millan wrote: >> On Wed, Jul 15, 2009 at 10:51:55PM +0200, Vladimir 'phcoder' Serbinenk= o wrote: >>> Hello, some BIOSes don't conform semaphore specification about handin= g >>> over the control on UHCI and/or EHCI controller. Most OS cope with it= >>> by taking ownership regardless after some timeout. This however Please, notice that the EHCI specification does not not specify the required timeout. Especially, there's no timeout after which the forced taking of ownership is safe. See http://bugzilla.kernel.org/show_bug.cgi?id=3D12148 for further discus= sion. Notice that once mainstream grub deals with USB keyboards without BIOS support, the obvious fix is to disable the (buggy) USB legacy support in the BIOS. The other obvious fix would be to upgrade to non-buggy BIOS version but unless your BIOS vendor fixes the issue, that's not really an option. >> Is there some way we can make this simpler without compromising on boo= t >> speed? Adding more setup burden to the user should be the last ressor= t >> IMO. >> > [...] > Another usage is if OS doesn't deal with situation correctly. > [...] > If you consider this patch too hackish it can stay in my repo and > people who really need can be said to use my repo or external module. > If you consider this tweak possibility reasonable we can merge it I don't know if the code quality is up to the requirements for getting in the official trunk but I don't think that any method to deal with broken BIOS or hardware cannot be too hackish. If the hardware (and this includes the firmware) is broken and there's some hack that can make it usable, just apply the hack. IMHO. --=20 Mikko --------------enigDC5A5EE977E8C143D2B7DA85 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEYEARECAAYFAkqb0foACgkQFNzRB1YxaOshfwCgk5+XdBNEm71FEkq/gyj72fkn tI4AnjA+46HP1g2vtSvkgC1wm7hvgvS0 =j11i -----END PGP SIGNATURE----- --------------enigDC5A5EE977E8C143D2B7DA85--