From owner-freebsd-stable@FreeBSD.ORG Fri Oct 11 12:30:25 2013 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id 829EA2C4; Fri, 11 Oct 2013 12:30:25 +0000 (UTC) (envelope-from petefrench@ingresso.co.uk) Received: from constantine.ingresso.co.uk (constantine.ingresso.co.uk [IPv6:2a02:b90:3002:e550::3]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 4618321A5; Fri, 11 Oct 2013 12:30:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=ingresso.co.uk; s=x; h=Date:From:Message-Id:In-Reply-To:Cc:Subject:To; bh=8xghqtJed6l1g5ecq//CVEEHEM6CGar9ou//jgne7V4=; b=dLNkCyQnFm1QCpPjdxTPf/nX0EohQxWKXvcuQf8yrxNBbVToMK7CXTSa1pTrRkMtNRzQVUKdcAkoo3cU6IoFcmV83ryHsNsoNekHnyZKr8ye7nyp4yzCcGPxppN7gpvFYguvWdIE3NVhLZe3eqC4j+Nv3CP9CwVEmohMY8OX2T0=; Received: from dilbert.london-internal.ingresso.co.uk ([10.64.50.6] helo=dilbert.ingresso.co.uk) by constantine.ingresso.co.uk with esmtps (TLSv1:DHE-RSA-AES256-SHA:256) (Exim 4.80.1 (FreeBSD)) (envelope-from ) id 1VUbrI-0002bD-2L; Fri, 11 Oct 2013 13:30:20 +0100 Received: from petefrench by dilbert.ingresso.co.uk with local (Exim 4.80.1 (FreeBSD)) (envelope-from ) id 1VUbrH-000DeU-SN; Fri, 11 Oct 2013 13:30:19 +0100 To: killing@multiplay.co.uk, petefrench@ingresso.co.uk, trociny@FreeBSD.org Subject: Re: hast and zfs trim possibly causing some problems in 9.2 In-Reply-To: Message-Id: From: Pete French Date: Fri, 11 Oct 2013 13:30:19 +0100 Cc: freebsd-stable@freebsd.org X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.14 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, 11 Oct 2013 12:30:25 -0000 > What do you see from: > sysctl kstat.zfs.misc.zio_trim > > You should be seeing none zero unsupported and zero failed. If this is > not the case its likely hast isnt setting bio_error to ENOTSUP. Again, unfortunately, the systems are now running with trim diisabled so these statsitcs have all been zeroed. I do have a test hast setup I could re-enable this on to try lkater today or next week though. I will try and find some time to do that and let you know what the results are. -pete.