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 1JwNpM-0007Wp-5J for user-mode-linux-devel@lists.sourceforge.net; Wed, 14 May 2008 13:43:56 -0700 Received: from [198.99.130.12] (helo=saraswathi.solana.com) by mail.sourceforge.net with esmtps (TLSv1:AES256-SHA:256) (Exim 4.44) id 1JwNpI-0001ZF-KW for user-mode-linux-devel@lists.sourceforge.net; Wed, 14 May 2008 13:43:54 -0700 Date: Wed, 14 May 2008 16:43:41 -0400 From: Jeff Dike Message-ID: <20080514204341.GA12452@c2.user-mode-linux.org> References: <20080502195720.GB10369@c2.user-mode-linux.org> <87k5ic47is.fsf@hades.wkstn.nix> <20080503005631.GA12599@c2.user-mode-linux.org> <877ieb4s4n.fsf@hades.wkstn.nix> <20080509151604.GC10169@c2.user-mode-linux.org> <1210353202.31648.8.camel@localhost> <20080514172347.GA10283@c2.user-mode-linux.org> <1210789757.25724.3.camel@localhost> <20080514193912.GA11531@c2.user-mode-linux.org> <87r6c4y7ab.fsf@hades.wkstn.nix> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <87r6c4y7ab.fsf@hades.wkstn.nix> Subject: Re: [uml-devel] actually useful backtrace from a CPU-chewing hang 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: Nix Cc: user-mode-linux-devel@lists.sourceforge.net On Wed, May 14, 2008 at 09:12:12PM +0100, Nix wrote: > Oh, and, it's pedantic of me, I know, but what does this do if time goes > backwards in the NO_HZ case? (Or is handling that a 2.6.26 thing?) In all cases, it holds time steady until the host catches up with what the guest thinks the time should be. I noticed you wrapped last_tick business in one of the ifdefs - I didn't look carefully to see whether that would explain the behavior difference. I just made it unconditional. Jeff -- Work email - jdike at linux dot intel dot com ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel