From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761602Ab2FEJtX (ORCPT ); Tue, 5 Jun 2012 05:49:23 -0400 Received: from cpsmtpb-ews09.kpnxchange.com ([213.75.39.14]:2238 "EHLO cpsmtpb-ews09.kpnxchange.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758120Ab2FEJtW (ORCPT ); Tue, 5 Jun 2012 05:49:22 -0400 Message-ID: <1338889756.4971.34.camel@x61.thuisdomein> Subject: Re: Why minor is still 8 bit? From: Paul Bolle To: George Shuklin Cc: "H. Peter Anvin" , Casey Schaufler , Al Viro , linux-kernel Date: Tue, 05 Jun 2012 11:49:16 +0200 In-Reply-To: <4FCDD308.8070204@gmail.com> References: <4FCC0E6D.9000206@gmail.com> <20120604013504.GU30000@ZenIV.linux.org.uk> <4FCC3151.1040503@gmail.com> <4FCCDE2B.3020306@schaufler-ca.com> <4FCD0591.2050504@gmail.com> <4FCD5869.8000306@zytor.com> <4FCD5BF3.30707@gmail.com> <1338888208.4971.30.camel@x61.thuisdomein> <4FCDD308.8070204@gmail.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.2.3 (3.2.3-3.fc16) Content-Transfer-Encoding: 7bit Mime-Version: 1.0 X-OriginalArrivalTime: 05 Jun 2012 09:49:16.0749 (UTC) FILETIME=[78B03FD0:01CD4300] X-RcptDomain: vger.kernel.org Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 2012-06-05 at 13:36 +0400, George Shuklin wrote: > This is a limitaiton of LMV itself. I'm talking about making those LV > active (visible in system). When you trying to activate too much LV, you > will get 'device io ctl failed' message. What is the exact text of that message? Where is it found (stderr, dmesg, ...)? Do you know what prints it (kernel, user space)? Do you run into this issue when trying to activate the 256th LV, or later, or earlier? Paul Bolle