From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rob Landley Subject: Re: Some embedded topics Date: Sun, 1 Jun 2008 18:52:08 -0500 Message-ID: <200806011852.09909.rob@landley.net> References: <483C83DE.3040604@cisco.com> <4840815E.9020002@am.sony.com> <20080530190423.67ac3139@vader.jdub.homelinux.org> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20080530190423.67ac3139@vader.jdub.homelinux.org> Content-Disposition: inline Sender: linux-embedded-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii" To: Josh Boyer Cc: Tim Bird , vb , David VomLehn , linux-embedded@vger.kernel.org On Friday 30 May 2008 19:04:23 Josh Boyer wrote: > > I'm not sure, however, that the buffers are pushed to user-space, > > through the daemon, and back to the file system in an expedient manner. > > I agree it might be worth a look for this use case. We use it at > > Sony quite a bit and it's valuable. > > With a little bit of work, you could have it trace into a circular > buffer in DRAM. Then you can preserve that via mem= reservations, > etc. At this point, I feel the need to remind people of the time Linus Torvalds got a mac mini, tried to get software suspend working on it, and wound up using the RTC as a debug register to tell him where it hung/rebooted: Thread starts here: https://lists.linux-foundation.org/pipermail/linux-pm/2006-June/008465.html A few interesting posts in the thread: https://lists.linux-foundation.org/pipermail/linux-pm/2006-June/008470.html https://lists.linux-foundation.org/pipermail/linux-pm/2006-June/008475.html https://lists.linux-foundation.org/pipermail/linux-pm/2006-June/008491.html Rob -- "One of my most productive days was throwing away 1000 lines of code." - Ken Thompson.