From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [140.186.70.92] (port=56843 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OCug9-0007Ih-Qr for qemu-devel@nongnu.org; Fri, 14 May 2010 09:11:50 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1OCug7-0000wB-J9 for qemu-devel@nongnu.org; Fri, 14 May 2010 09:11:49 -0400 Received: from are.twiddle.net ([75.149.56.221]:46674) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1OCug7-0000vr-9l for qemu-devel@nongnu.org; Fri, 14 May 2010 09:11:47 -0400 Message-ID: <4BED4C10.9080806@twiddle.net> Date: Fri, 14 May 2010 06:11:44 -0700 From: Richard Henderson MIME-Version: 1.0 Subject: Re: [Qemu-devel] [PATCH] linux-user: use default mmap_min_addr 65536 when /proc/sys/vm/mmap_min_addr cannot be read References: <1273756645-11149-1-git-send-email-Martin.Jansa@gmail.com> <4BEC2FEC.6070900@twiddle.net> <20100513192626.GO3370@jama> In-Reply-To: <20100513192626.GO3370@jama> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Martin Jansa Cc: qemu-devel@nongnu.org On 05/13/2010 12:26 PM, Martin Jansa wrote: > BTW: I noticed that qemu-arm works ok when mmap_min_addr is low enough > (and doesn't have to be zero). > > my box had mmap_min_addr 4096 and qemu-arm worked fine even without > reading it Paul Brook's c581deda322080e8beb88b2e468d4af54454e4b3 had the side effect of working around mmap_min_addr without having to read it. Of course, if we *can* read mmap_min_addr, his patch will do less work. r~