From owner-freebsd-stable@FreeBSD.ORG Mon Apr 21 08:49:17 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 EDD31106564A for ; Mon, 21 Apr 2008 08:49:17 +0000 (UTC) (envelope-from tevans.uk@googlemail.com) Received: from fg-out-1718.google.com (fg-out-1718.google.com [72.14.220.159]) by mx1.freebsd.org (Postfix) with ESMTP id 6F9578FC24 for ; Mon, 21 Apr 2008 08:49:17 +0000 (UTC) (envelope-from tevans.uk@googlemail.com) Received: by fg-out-1718.google.com with SMTP id 16so1845021fgg.35 for ; Mon, 21 Apr 2008 01:49:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=gamma; h=domainkey-signature:received:received:subject:from:to:cc:in-reply-to:references:content-type:date:message-id:mime-version:x-mailer; bh=hWZcw5VcW1Md8bxtlXaA6nrnh0VjZShfDSmiC/mcOBY=; b=yDAULwOoCyZujWcuRoLB7+Hw2DSlmiuIztMV9oyLRz0C5KoJzk2Ec8g/NrQ3rmV1y58VGJFwydqVzJjiDpv+YprWyk29v75nwfOh/pDFpyzm9UnpNOyMWjQpNc5E4fmziLlMt/XseaKO8NUMm+I4qaBsO0gpi1UXY5E/5m7djT4= DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=subject:from:to:cc:in-reply-to:references:content-type:date:message-id:mime-version:x-mailer; b=tzgq9ti0RJV2E4DUekkFKx4lf3UdGEOmskocENeeXyImIWB1aNKQvLpSmvQAsW8JTjxwur8BY+K80QGuAIpuHh98w3Nj9eF33mshX2FOy2wIdMXa0tEUcwcO0q45UAMsAdYYcRirUXfdoFgxqcgGx4tUD+iqKviH8xs8Y5RhXK4= Received: by 10.86.72.15 with SMTP id u15mr12653416fga.11.1208766079376; Mon, 21 Apr 2008 01:21:19 -0700 (PDT) Received: from ?127.0.0.1? ( [217.206.187.80]) by mx.google.com with ESMTPS id t2sm6992547gve.3.2008.04.21.01.21.17 (version=SSLv3 cipher=RC4-MD5); Mon, 21 Apr 2008 01:21:18 -0700 (PDT) From: Tom Evans To: Peter Jeremy In-Reply-To: <20080418224605.GA19226@server.vk2pj.dyndns.org> 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> <20080418224605.GA19226@server.vk2pj.dyndns.org> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-WFLc2VZMkY6UN91cMJPt" Date: Mon, 21 Apr 2008 09:21:16 +0100 Message-Id: <1208766076.1940.35.camel@localhost> Mime-Version: 1.0 X-Mailer: Evolution 2.12.3 FreeBSD GNOME Team Port Cc: stable@freebsd.org, Garrett Wollman 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: Mon, 21 Apr 2008 08:49:18 -0000 --=-WFLc2VZMkY6UN91cMJPt Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Sat, 2008-04-19 at 08:46 +1000, Peter Jeremy wrote: > On Thu, Apr 17, 2008 at 07:13:17PM -0400, Garrett Wollman wrote: > >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 > >never saw panics, only triple-fault CPU resets.) >=20 > OTOH, I've had mixed results, though I haven't seen panics caused by > EHCI. umass has a tendency to panic when it trips over an interface > bug between bus_dmamem_alloc(9) and contigmalloc(9) which has been > present since at least 4.x, though the work-arounds have improved and > this is less of a problem than it was 3 years ago. >=20 > On my laptop (HP nx6125, ATI SB400 chipset), I haven't had any problems > with EHCI in 6.x or 7.0 (both amd64 - I can't recall if I've tried ECHI > whilst running i386). >=20 > My son's laptop (HP V6107au, nVIDIA MCP51 chipset, 6.x/amd64) gives > varying results (sometimes it works, sometimes it doesn't) and he's > found that plugging flashdisks into the USB hub on his keyboard gives > better results than plugging them into the system (which doesn't make > sense to me - they still show a attached to EHCI). >=20 > My work desktop (Dell OptiPlex GX620, Intel ICH7 chipset 7.0/amd64) > refuses to acknowledge EHCI devices - it just reports timeouts and > disables that USB port. [See my recent posting to -amd64]. >=20 Is the keyboard hub self powered? Maybe some devices draw more current than expected, causing fragile bus powered ports to fail (which would quickly cause a panic). Tom --=-WFLc2VZMkY6UN91cMJPt Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.8 (FreeBSD) iEYEABECAAYFAkgMTnQACgkQlcRvFfyds/fHDACghh9UB+amW9yWdiMBpl9/Ee8U WIgAoME67h+FYjiRHkBpFSGJ5LlRbFG4 =cw3w -----END PGP SIGNATURE----- --=-WFLc2VZMkY6UN91cMJPt--