From owner-freebsd-stable Mon Apr 17 0:10:55 2000 Delivered-To: freebsd-stable@freebsd.org Received: from student-00cdr.williams.edu (student-00cdr.williams.edu [137.165.32.200]) by hub.freebsd.org (Postfix) with ESMTP id 9664637BA7A for ; Mon, 17 Apr 2000 00:10:47 -0700 (PDT) (envelope-from chris@student-00cdr.williams.edu) Received: by student-00cdr.williams.edu (Postfix, from userid 1000) id 46789119; Mon, 17 Apr 2000 03:10:53 -0400 (EDT) Date: Mon, 17 Apr 2000 03:10:53 -0400 From: Chris Richards To: freebsd-stable@FreeBSD.ORG Subject: Re: Sound Blaster Live! 4.0 (Re: 4.1 date?) Message-ID: <20000417031053.A30779@student-00cdr.williams.edu> References: <200004170548.WAA00584@realtime.exit.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 1.0.1i In-Reply-To: <200004170548.WAA00584@realtime.exit.com>; from frank@exit.com on Sun, Apr 16, 2000 at 10:46:13PM -0700 Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Sun, Apr 16, 2000 at 10:46:13PM -0700, Frank Mayhar wrote: > Sounds like serious driver trouble to me, and like the folks that aren't > having trouble may have weird failures in the future as their memory gets > tromped. Here are some additional data points obtained while running the Linux emu10k1 driver. Because of that they may be of limited usefulness, but who knows... For one thing, the Linux driver would generate an NMI on module load, and then cease to do anything anomalous (Linux doesn't panic on unexpected NMIs). The fact that both drivers exhibit this NMI behavior, though, makes me think that either (1) their respective authors made the same programming error -- how does one generate NMIs from software, anyhow? -- or (2) there is something wrong with the SBLive hardware. There was also an interaction between the emu10k1 code and the the Linux APM driver. With both enabled, I would see an NMI generated precisely every 5 minutes. With just APM everything was fine, and with just the emu10k1 the situation was as described above. The only other person I knew to be observing this behavior was another fellow with a Dell Dimension XPS T and ECC memory. -chris To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message