From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Message-ID: <4E4CB13C.7010502@meduna.org> Date: Thu, 18 Aug 2011 08:29:16 +0200 From: Stanislav Meduna MIME-Version: 1.0 References: <4E4C2B6F.7000800@nod.at> In-Reply-To: <4E4C2B6F.7000800@nod.at> Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Subject: Re: [uml-devel] Floating point problems on UML - help needed To: Richard Weinberger Cc: linux-kernel@vger.kernel.org, gunnarlindroth@hotmail.com, user-mode-linux-devel@lists.sourceforge.net List-ID: On 17.08.2011 22:58, Richard Weinberger wrote: > It looks like FPU registers get sometimes lost after switching between > two or more threads. This is probably a bug in UML I reported nearly three years ago. For me mode=skas0 worked aruond the issue. http://thread.gmane.org/gmane.linux.uml.devel/11824/focus=11840 You might try the patch posted in http://thread.gmane.org/gmane.linux.uml.devel/12158 (I don't have the environment to test it anymore) Regards -- Stano