From owner-freebsd-fs@freebsd.org Sat Nov 12 11:57:10 2016 Return-Path: Delivered-To: freebsd-fs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 9BF39C3D761 for ; Sat, 12 Nov 2016 11:57:10 +0000 (UTC) (envelope-from avg@FreeBSD.org) Received: from citapm.icyb.net.ua (citapm.icyb.net.ua [212.40.38.140]) by mx1.freebsd.org (Postfix) with ESMTP id BBC0C17AE; Sat, 12 Nov 2016 11:57:09 +0000 (UTC) (envelope-from avg@FreeBSD.org) Received: from porto.starpoint.kiev.ua (porto-e.starpoint.kiev.ua [212.40.38.100]) by citapm.icyb.net.ua (8.8.8p3/ICyb-2.3exp) with ESMTP id NAA27902; Sat, 12 Nov 2016 13:57:02 +0200 (EET) (envelope-from avg@FreeBSD.org) Received: from localhost ([127.0.0.1]) by porto.starpoint.kiev.ua with esmtp (Exim 4.34 (FreeBSD)) id 1c5Wvd-000A2R-Pw; Sat, 12 Nov 2016 13:57:01 +0200 Subject: Re: ZFS L2ARC checksum errors after compression To: lev@FreeBSD.org, freebsd-fs References: <921575537.20161029143626@serebryakov.spb.ru> <3dae7691-fcd1-b3b9-445c-b81d6f0cdc52@FreeBSD.org> <3bd7cb79-ec5a-3b7c-0642-24a7b1f001e6@FreeBSD.org> <5826F293.7020408@FreeBSD.org> From: Andriy Gapon Message-ID: <5695c647-9250-703d-35d8-8b125dbcd61b@FreeBSD.org> Date: Sat, 12 Nov 2016 13:56:05 +0200 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:45.0) Gecko/20100101 Thunderbird/45.4.0 MIME-Version: 1.0 In-Reply-To: <5826F293.7020408@FreeBSD.org> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 12 Nov 2016 11:57:10 -0000 On 12/11/2016 12:44, Lev Serebryakov wrote: > >> because of the confusing variable names I made a mistake in the patch that I >> offered you. Could you please try a new slight different patch? >> Also, I think that there could be another problem in addition to the one that I >> see. But I am quite busy at the moment, no time to investigate. Maybe on the >> weekend or some time next week. > > Nope. Second version of patch doesn't help either. Still unrealistic > high compression ratio (ALLOC/SIZE, slightly less than 2 on mostly > uncompresseable data), 16.0E of FREE since ALLOC becomes greater than > SIZE and lot of checksum errors since the same moment. > I see. Could you please send me full output of the following commands? zpool status -v zpool list -v zdb -CC $pool -- Andriy Gapon