From owner-freebsd-stable@FreeBSD.ORG Tue Feb 23 10:40:37 2010 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id C775B106566B for ; Tue, 23 Feb 2010 10:40:37 +0000 (UTC) (envelope-from h.schmalzbauer@omnilan.de) Received: from host.omnilan.net (host.omnilan.net [62.245.232.135]) by mx1.freebsd.org (Postfix) with ESMTP id 51BD98FC17 for ; Tue, 23 Feb 2010 10:40:36 +0000 (UTC) Received: from titan.flintsbach.schmalzbauer.de (titan.flintsbach.schmalzbauer.de [172.21.1.150]) (authenticated bits=0) by host.omnilan.net (8.13.8/8.13.8) with ESMTP id o1NAeZwi044303 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Tue, 23 Feb 2010 11:40:35 +0100 (CET) (envelope-from h.schmalzbauer@omnilan.de) Message-ID: <4B83B0A2.1030008@omnilan.de> Date: Tue, 23 Feb 2010 11:40:34 +0100 From: Harald Schmalzbauer Organization: OmniLAN User-Agent: Thunderbird 2.0.0.23 (X11/20090906) MIME-Version: 1.0 To: freebsd-stable@freebsd.org X-Enigmail-Version: 0.95.6 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig70A3E3E4E79FB027359A9710" Subject: ahcich timeouts, only with ahci, not with ataahci 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: Tue, 23 Feb 2010 10:40:37 -0000 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig70A3E3E4E79FB027359A9710 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: quoted-printable Hello, I'm frequently getting my machine locked with ahcichX timeouts: ahcich2: Timeout on slot 0 ahcich2: is 00000000 cs 00000001 ss 00000000 rs 00000001 tfd c0 serr=20 00000000 ahcich2: Timeout on slot 8 ahcich2: is 00000000 cs 00000100 ss 00000000 rs 00000100 tfd c0 serr=20 00000000 ahcich2: Timeout on slot 8 ahcich2: is 00000000 cs fffff07f ss ffffff7f rs ffffff7f tfd c0 serr=20 00000000 =2E.. This happens when backup over GbE overloads ZFS/HDD capabilities. I reduced vfs.zfs.txg.timeout to 1 to prevent the machine from locking=20 up almost immediately, but from it still happens. When I don't use ahci but ataahci (the old driver if I understand things = correct) I also see the ZFS burst write congestion, but this doesn't=20 lead to controller timeouts, thus blocking the machine. Sometimes the machine recovers from the disk lock, but most often I have = to reboot. Kernel is from Feb. 19, so recent ahci improovements are active. Controller is ICH9R with 3 Samsung F3 SpinPoints. Any ideas how to work arround the hangs other than using the old ahci=20 driver? Thanks, -Harry --------------enig70A3E3E4E79FB027359A9710 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.13 (FreeBSD) iEYEARECAAYFAkuDsKMACgkQLDqVQ9VXb8iTCQCfcQHNwJd7i7Wk6rw1QMyGQETE NqsAoLAz8CAgMmSecAqi50A8bxknqVov =4ECQ -----END PGP SIGNATURE----- --------------enig70A3E3E4E79FB027359A9710--