From owner-freebsd-stable@FreeBSD.ORG Fri Apr 18 16:03:26 2008 Return-Path: Delivered-To: stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 8A57B106564A for ; Fri, 18 Apr 2008 16:03:26 +0000 (UTC) (envelope-from rsmith@xs4all.nl) Received: from smtp-vbr17.xs4all.nl (smtp-vbr17.xs4all.nl [194.109.24.37]) by mx1.freebsd.org (Postfix) with ESMTP id 193BC8FC12 for ; Fri, 18 Apr 2008 16:03:25 +0000 (UTC) (envelope-from rsmith@xs4all.nl) Received: from slackbox.xs4all.nl (slackbox.xs4all.nl [213.84.242.160]) by smtp-vbr17.xs4all.nl (8.13.8/8.13.8) with ESMTP id m3IFleKS047799; Fri, 18 Apr 2008 17:47:40 +0200 (CEST) (envelope-from rsmith@xs4all.nl) Received: by slackbox.xs4all.nl (Postfix, from userid 1001) id D5351B829; Fri, 18 Apr 2008 17:47:39 +0200 (CEST) Date: Fri, 18 Apr 2008 17:47:39 +0200 From: Roland Smith To: Garrett Wollman Message-ID: <20080418154739.GA79517@slackbox.xs4all.nl> References: <1208046195.00056100.1208036121@10.7.7.3> <539c60b90804141549u6a138ad9u9c77bbfcbbad0ff3@mail.gmail.com> <20080415175347.GA29045@slackbox.xs4all.nl> <539c60b90804151134q7a25a141m1205a1b04d8ffc2c@mail.gmail.com> <20080415192028.GA31706@slackbox.xs4all.nl> <539c60b90804160910q3a242d7amb474b40065d6c9c6@mail.gmail.com> <1208373797.00057829.1208362805@10.7.7.3> <48071956.2090103@icyb.net.ua> <767FB33508C0E8E4E3CAA61A@utd65257.utdallas.edu> <200804172313.m3HNDHFo006697@hergotha.csail.mit.edu> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="GvXjxJ+pjyke8COw" Content-Disposition: inline In-Reply-To: <200804172313.m3HNDHFo006697@hergotha.csail.mit.edu> X-GPG-Fingerprint: 1A2B 477F 9970 BA3C 2914 B7CE 1277 EFB0 C321 A725 X-GPG-Key: http://www.xs4all.nl/~rsmith/pubkey.txt X-GPG-Notice: If this message is not signed, don't assume I sent it! User-Agent: Mutt/1.5.17 (2007-11-01) X-Virus-Scanned: by XS4ALL Virus Scanner Cc: stable@freebsd.org, avg@icyb.net.ua Subject: Re: umass causes panic on 7 amd64 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 18 Apr 2008 16:03:26 -0000 --GvXjxJ+pjyke8COw Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Apr 17, 2008 at 07:13:17PM -0400, Garrett Wollman wrote: > In article <48076774.4090602@icyb.net.ua>, avg@icyb.net.ua writes: >=20 > >Eh I think I saw something like this myself. > >Do you by a chance have that new device sg in your kernel? > >I assume you do (GENERIC) - try to drop it. > >I am not sure if this is some brokenness of that driver or fighting of > >several USB drivers over the same hardware. >=20 > In my experience, umass over EHCI has never worked on any machine > ever, going back to 5.x and over multiple kinds of umass devices. (I I've had several machines with VIA chipsets where ehci never was a problem. My current machine has: usb4: on ehci0 uhub4: on usb4 uhub4: 8 ports with 8 removable, self powered A 256MB usb flash drive works OK with this controller: umass0: on uhub4 da0 at umass-sim0 bus 0 target 0 lun 0 da0: Removable Direct Access SCSI-2 device=20 da0: 40.000MB/s transfers da0: 250MB (512000 512 byte sectors: 64H 32S/T 250C) As does an external harddisk enclosure. umass0: = on u hub4 da0 at umass-sim0 bus 0 target 0 lun 0 da0: Fixed Direct Access SCSI-2 device=20 da0: 40.000MB/s transfers da0: 238475MB (488397168 512 byte sectors: 255H 63S/T 30401C) I've never had read/write or data corruption problems with these.=20 Only when copying from _and_ to GELI encrypted devices has the transfer stalled occasionally. But that's probably due to my (single core) CPU running out of steam. In my experience machines with Via chipsets have always worked well and are very well supported by FreeBSD's drivers.=20 Likewise I've avoided nvidia stuff because of the lack of support. Roland --=20 R.F.Smith http://www.xs4all.nl/~rsmith/ [plain text _non-HTML_ PGP/GnuPG encrypted/signed email much appreciated] pgp: 1A2B 477F 9970 BA3C 2914 B7CE 1277 EFB0 C321 A725 (KeyID: C321A725) --GvXjxJ+pjyke8COw Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.8 (FreeBSD) iEYEARECAAYFAkgIwpsACgkQEnfvsMMhpyVoPQCfeqo6OSpxlDIBNr5mx4iy5dML eLcAn3/QPwiQBXMx8yRFaGFv5vEbGqCP =LjTB -----END PGP SIGNATURE----- --GvXjxJ+pjyke8COw--