Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756872Ab3GDSPX (ORCPT ); Thu, 4 Jul 2013 14:15:23 -0400 Received: from mail-pd0-f180.google.com ([209.85.192.180]:43686 "EHLO mail-pd0-f180.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756593Ab3GDSPV (ORCPT ); Thu, 4 Jul 2013 14:15:21 -0400 Subject: Re: [problem?] swapon: swap partition/volume size capped at 32G? From: Raymond Jennings To: linux-kernel@vger.kernel.org In-Reply-To: <1372886473.1079.3.camel@warfang> References: <1372886473.1079.3.camel@warfang> Content-Type: text/plain; charset="UTF-8" Date: Thu, 04 Jul 2013 11:15:10 -0700 Message-ID: <1372961710.16288.1.camel@warfang> Mime-Version: 1.0 X-Mailer: Evolution 2.32.3 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 993 Lines: 26 On Wed, 2013-07-03 at 14:21 -0700, Raymond Jennings wrote: > Ok, so I just upgraded to 3.10.0 (gentoo system) and made a nice big > 64GiB swap volume on lvm as usual. > > Suddenly, swapon doesn't recognize more than 32GiB, as top lists only > that much swap space. > > swapon using *two* separate 32GiB partitions works fine, but for some > reason a swap partition bigger than 32GiB isn't fully recognized. > > Previous kernel versions IIRC recognized the entire swap partition. > > Is something wrong or is this new behavior standard? > Hold on a minute, I just found out something ate my kernel config and turned off PAE when I upgraded. This in turn shrunk my pte's from 64 bits to 32 bits and is probably what killed >32G swap extents. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/