From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <453C877B.7000307@domain.hid> Date: Mon, 23 Oct 2006 11:12:27 +0200 From: Gilles Chanteperdrix MIME-Version: 1.0 Subject: Re: [Xenomai-core] x86 FPU switches routines. References: <453C7C48.30602@domain.hid> <453C84FE.3050508@domain.hid> In-Reply-To: <453C84FE.3050508@domain.hid> Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit List-Id: "Xenomai life and development \(bug reports, patches, discussions\)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Jan Kiszka Cc: xenomai@xenomai.org Jan Kiszka wrote: > Gilles Chanteperdrix wrote: > >>Hi, >> >>As once discussed with Heikki, and after a first missed attempt, here >>is a patch for x86 which attempts to cope correctly with Linux (non >>real-time) drivers using FPU in kernel-space. >> >>I tested it on my laptop without drivers using FPU, and it appears to >>work correctly, but it would be nice if people that had problems with >>the previous attempt (if I remember correctly, on old pentiums and on >>AMD processors) could test this patch. > > > Just fired up on a Pentium MMX which used to have problems with the > first approad. Switchtest reports no problems. > > What about writing a simple test case for the non-RT in-kernel FPU usage? I plan to add it to the switchtest driver, but I wanted to make sure that the new support already works in the usual case. -- Gilles Chanteperdrix