From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Message-ID: <4E4CF94B.4010803@gmx.de> Date: Thu, 18 Aug 2011 13:36:43 +0200 From: Ingo van Lil MIME-Version: 1.0 References: <4E4C2B6F.7000800@nod.at> <4E4CB13C.7010502@meduna.org> <4E4CED56.1030100@nod.at> In-Reply-To: <4E4CED56.1030100@nod.at> Content-Type: text/plain; charset=UTF-8; format=flowed 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: Stanislav Meduna , linux-kernel@vger.kernel.org, gunnarlindroth@hotmail.com, user-mode-linux-devel@lists.sourceforge.net List-ID: On 18/08/2011 12:45, Richard Weinberger wrote: >> 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) > > Cool, saving the FP registers explicitly on each task switch solves the > issue. > Do you know why Ingo's patch was never applied? > Ingo? I don't know why it was never applied, I guess it just slipped between the cracks. I've been using the patch for several months back in 2009, and it reliably fixed the observed problems. My employer switched from UML to QEMU/KVM since then, so I eventually lost interest. Cheers, Ingo