From owner-freebsd-scsi@FreeBSD.ORG Sun Jun 6 02:49:15 2010 Return-Path: Delivered-To: freebsd-scsi@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id D2F7A10656C5 for ; Sun, 6 Jun 2010 02:49:15 +0000 (UTC) (envelope-from artemb@gmail.com) Received: from mail-pz0-f175.google.com (mail-pz0-f175.google.com [209.85.222.175]) by mx1.freebsd.org (Postfix) with ESMTP id A58168FC18 for ; Sun, 6 Jun 2010 02:49:15 +0000 (UTC) Received: by pzk5 with SMTP id 5so1190322pzk.14 for ; Sat, 05 Jun 2010 19:49:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:sender:received :in-reply-to:references:date:x-google-sender-auth:message-id:subject :from:to:cc:content-type; bh=FF4dZib7Suo0ihQqLnqtFQDr1DBFc4Syx23G83YDFE4=; b=ZX4O+M7JUSL0Q3Ds7tTHrqJjrf7yr31MD58WqY+swsWtKqvwnFK2DuKGwYAkviXhc8 ARt6tm42+y5lBr2DRKj84jGIwMkmZy1JNEYDAlJxQIwFK8Nq/K1L7cIC13oksK34/6C/ et1AM+V0YurHhPKwjazeMCDwB0wGeQd1jr7w4= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type; b=YaLUX56ZfFiN+2fMfhCdT8qu6P18hqelRfKmqMB4pAwHI1ZdnpijDMfdlgS9xK9tBC E2n2NpNramne0L14goCjnrKTTdG6sDb6qNcwBjPVhUHD6wep1YHseNYoy0Yuxs+pf+uv DSfDzFbv9gS/9XwWegKvhmBfjoEyf4c95mWgM= MIME-Version: 1.0 Received: by 10.140.252.10 with SMTP id z10mr10508279rvh.45.1275792555145; Sat, 05 Jun 2010 19:49:15 -0700 (PDT) Sender: artemb@gmail.com Received: by 10.141.40.4 with HTTP; Sat, 5 Jun 2010 19:49:15 -0700 (PDT) In-Reply-To: <4C0B07C6.3090804@feral.com> References: <20100606014516.GA53735@putsch.kolbu.ws> <4C0B064A.3060206@feral.com> <20100606022651.GB53735@putsch.kolbu.ws> <4C0B07C6.3090804@feral.com> Date: Sat, 5 Jun 2010 19:49:15 -0700 X-Google-Sender-Auth: itZFLZ--QE1FedUUtLu531uVKmA Message-ID: From: Artem Belevich To: Matthew Jacob Content-Type: text/plain; charset=ISO-8859-1 Cc: freebsd-scsi@freebsd.org Subject: Re: mpt request timed out X-BeenThere: freebsd-scsi@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: SCSI subsystem List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 06 Jun 2010 02:49:15 -0000 SATA cables were the first thing I suspected. Changed them few times with no impact on the issue. Forcing SATA to 1.5G helped a bit, but the errors still showed up, though not as frequently. I've read a theory on OpenSolaris mailing list where folks were discussing strikingly similar issue with LSI controllers throwing up bus reset errors when used with ZFS. The gist was that IR firmware is rather buggy and sometimes hangs under heavy load. It does have some sort of watchdog, so the chip eventually restarts. It reports an error to the driver and it may abort (or forget to finish) current transaction so it sometimes looks like an error to hard disk as well. --Artem On Sat, Jun 5, 2010 at 7:28 PM, Matthew Jacob wrote: > Okay, good, my best guess is that that SATA signals past the STP bridge got > jammed up and a PHY reset was issued by the firmware. > >> Yes, everything works fine after the reset. >> > > _______________________________________________ > freebsd-scsi@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-scsi > To unsubscribe, send any mail to "freebsd-scsi-unsubscribe@freebsd.org" >