From: "Martin K. Petersen" Subject: Re: [dm-devel] do not disable ext4 discards on first discard failure? [was: Re: dm snapshot: ignore discards issued to the snapshot-origin target] Date: Mon, 02 May 2011 10:50:03 -0400 Message-ID: References: <20110413224025.GA18589@redhat.com> <20110413234854.GA19793@redhat.com> <20110426173213.GA19604@redhat.com> <20110428001912.GA14659@redhat.com> <20110428075355.GA2190@infradead.org> <20110428205935.GA24979@redhat.com> <20110429122454.GL32370@agk-dp.fab.redhat.com> <20110502081308.GC8642@agk-dp.fab.redhat.com> <20110502081925.GA11312@infradead.org> Mime-Version: 1.0 Content-Type: text/plain Cc: "Martin K. Petersen" , Christoph Hellwig , device-mapper development , Alasdair G Kergon , sandeen@redhat.com, Mike Snitzer , DarkNovaNick@gmail.com, linux-lvm@redhat.com, linux-ext4@vger.kernel.org To: Lukas Czerner Return-path: Received: from rcsinet10.oracle.com ([148.87.113.121]:21742 "EHLO rcsinet10.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760028Ab1EBOuQ (ORCPT ); Mon, 2 May 2011 10:50:16 -0400 In-Reply-To: (Lukas Czerner's message of "Mon, 2 May 2011 16:39:31 +0200 (CEST)") Sender: linux-ext4-owner@vger.kernel.org List-ID: >>>>> "Lukas" == Lukas Czerner writes: Lukas> So I assume it got fixes just recently ?. I'll give it a try with Lukas> the up-to-date kernel. Ok, turns out the SSD I used for the test predates advertising TRIM. Beats me why this is broken for the zeroes/!zeroes case. I'll get it fixed... -- Martin K. Petersen Oracle Linux Engineering