From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sc8-sf-mx2-b.sourceforge.net ([10.3.1.92] helo=mail.sourceforge.net) by sc8-sf-list1-new.sourceforge.net with esmtp (Exim 4.43) id 1Gq2dI-0004Jh-2Y for user-mode-linux-devel@lists.sourceforge.net; Thu, 30 Nov 2006 23:16:28 -0800 Received: from nf-out-0910.google.com ([64.233.182.186]) by mail.sourceforge.net with esmtp (Exim 4.44) id 1Gq2dH-0005Wg-KM for user-mode-linux-devel@lists.sourceforge.net; Thu, 30 Nov 2006 23:16:28 -0800 Received: by nf-out-0910.google.com with SMTP id c31so5476172nfb for ; Thu, 30 Nov 2006 23:16:26 -0800 (PST) Message-ID: <22a33e9f0611302316l14e7eff9h75f0201a56a4a3f7@mail.gmail.com> Date: Fri, 1 Dec 2006 07:16:26 +0000 From: "Matt Willsher" In-Reply-To: <20061201002252.GF8331@ccure.user-mode-linux.org> MIME-Version: 1.0 Content-Disposition: inline References: <22a33e9f0611180345w7ec64513l34424a59e1671479@mail.gmail.com> <200611210813.14745.blaisorblade@yahoo.it> <22a33e9f0611211123w3b57d6bdh5e599a87589816c9@mail.gmail.com> <200611220122.24515.blaisorblade@yahoo.it> <22a33e9f0611220004m46ce8d98nc7f21eff09febc89@mail.gmail.com> <20061122164446.GB5120@ccure.user-mode-linux.org> <22a33e9f0611232329g6c8a8614x3472a0da3416aba5@mail.gmail.com> <20061124202512.GD4745@ccure.user-mode-linux.org> <22a33e9f0611241310y42962e8exce5011f2d6b99435@mail.gmail.com> <20061201002252.GF8331@ccure.user-mode-linux.org> Subject: Re: [uml-devel] Problem with newer (>2.6.14) UML kernels hanging under Xen DomU/Centos 4.4 List-Id: The user-mode Linux development list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: user-mode-linux-devel-bounces@lists.sourceforge.net Errors-To: user-mode-linux-devel-bounces@lists.sourceforge.net To: Jeff Dike Cc: user-mode-linux-devel@lists.sourceforge.net The problem I'm having On 12/1/06, Jeff Dike wrote: > On Fri, Nov 24, 2006 at 09:10:50PM +0000, Matt Willsher wrote: > > The very same image, uncopied. I have a directory tree set up and > > scripts I use and all I did was to change the script to call the newer > > kernel. > > And the exact same UML binary? I'm grabbing at straws here, in case > somehow the broken one is lacking binfmt support for /sbin/init. > Just to recap: TT mode support under 2.6.12 works fine and I can boot a custom build kernel with it. A downloaded, known good 2.6.12 also boots a know good linux disk image. 2.6.18, either compiled by myself, or a downloaded known good doesn't boot either my known good disk image as used with 2.6.12 or one downloaded from the web. The 2.6.18 that doesn't work on my machine has been used successfully on someone elses environment boot my known good image. My guess is that this issue is related to SKAS0 support in the newer kernels. I've been meaning to find the earliest kernel that ships with SKAS0 and try both TT mode and SKAS0 mode to see what happens there. http://user-mode-linux.sourceforge.net/new/problems.html#vdso seems to be the problem I'm having but I'm running UML under Xen, and there is not /proc/config.gz to check the kernel config, nor do I access to Dom0. so I have no way to check CONFIG_COMPAT_VDSO or have it changed on my host. I'm willing to have a go at debugging using gdb etc. but I really don't know what I'm looking for there. ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel