From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sfi-mx-2.v28.ch3.sourceforge.com ([172.29.28.122] helo=mx.sourceforge.net) by 335xhf1.ch3.sourceforge.com with esmtp (Exim 4.69) (envelope-from ) id 1L0VwO-0007uZ-Jw for user-mode-linux-devel@lists.sourceforge.net; Thu, 13 Nov 2008 06:44:32 +0000 Received: from yx-out-1718.google.com ([74.125.44.155]) by 72vjzd1.ch3.sourceforge.com with esmtp (Exim 4.69) id 1L0VwN-0004UD-7V for user-mode-linux-devel@lists.sourceforge.net; Thu, 13 Nov 2008 06:44:32 +0000 Received: by yx-out-1718.google.com with SMTP id 3so324388yxi.82 for ; Wed, 12 Nov 2008 22:44:29 -0800 (PST) Message-ID: Date: Wed, 12 Nov 2008 22:44:24 -0800 From: "Karol Swietlicki" In-Reply-To: <804dabb00811122239l352dbb5dta63dc3330b92bf5a@mail.gmail.com> MIME-Version: 1.0 Content-Disposition: inline References: <804dabb00811122239l352dbb5dta63dc3330b92bf5a@mail.gmail.com> Subject: Re: [uml-devel] query on STDERR output from UML tracing 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 Errors-To: user-mode-linux-devel-bounces@lists.sourceforge.net To: Peter Teoh Cc: uml-devel On 12/11/2008, Peter Teoh wrote: > As I used gdb to trace UML execution, only three lines were output to > STDERR: > > - /proc/mm...not found: No such file or directory > - PTRACE_FAULTINFO...not found > - PTRACE_LDT...not found > > What are these? How to turn them on? What is the implication of > not having these features? Those lines mean that you do not have SKAS3/4 patches in your kernel. They are not essential for UML, but having them can give you a performance boost. Karol Swietlicki ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel