From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from maude.comedia.it (mail.comedia.it [77.93.254.181]) (using TLSv1 with cipher ADH-CAMELLIA256-SHA (256/256 bits)) (No client certificate requested) by mail.saout.de (Postfix) with ESMTPS for ; Thu, 2 Dec 2010 09:02:54 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by maude.comedia.it (Postfix) with ESMTP id D9E2F86FB8 for ; Thu, 2 Dec 2010 08:54:18 +0100 (CET) Received: from maude.comedia.it ([127.0.0.1]) by localhost (maude.comedia.it [127.0.0.1]) (amavisd-new, port 10025) with LMTP id VmEz7Hlm7UqN for ; Thu, 2 Dec 2010 08:54:13 +0100 (CET) Date: Thu, 2 Dec 2010 08:54:13 +0100 From: Luca Berra Message-ID: <20101202075413.GE19274@maude.comedia.it> References: <20101201145123.GA10238@dentifrice> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Disposition: inline In-Reply-To: <20101201145123.GA10238@dentifrice> Subject: Re: [dm-crypt] status of dm-crypt (alignment issues) on a SSD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: dm-crypt@saout.de On Wed, Dec 01, 2010 at 03:51:24PM +0100, mike dentifrice wrote: >Any hint would be greatly appreciated (including pointers to up-to-date >HOWTOs which I may have missed). Also, if you guys know which specific >feature of linux 2.6.33 is required, it would allow me to check whether >it's been backported to Debian's 2.6.32 or not. i dont know about debian and which software version has which feature, but: what you need on kernel side is having in sysfs under /sys/block/ queue/minimum_io_size queue/optimal_io_size queue/physical_block_size on tool side, for util-linux ldd /sbin/fdisk | grep blkid strings /lib/libblkid.so.1 | grep queue/ for lvm strings /sbin/lvm |grep queue/ and so on. -- Luca Berra -- bluca@comedia.it