From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <45E48543.8030800@domain.hid> Date: Tue, 27 Feb 2007 20:23:47 +0100 From: Theo Veenker MIME-Version: 1.0 References: <45E4646A.10205@domain.hid> <45E46D67.9030600@domain.hid> In-Reply-To: <45E46D67.9030600@domain.hid> Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Subject: [Xenomai-help] Re: high latency every 8 seconds List-Id: Help regarding installation and common use of Xenomai List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Jan Kiszka Cc: xenomai@xenomai.org Jan Kiszka wrote: > Theo Veenker wrote: >> Hi all, >> >> I'm installing xenomai 2.2.5 (kernel 2.6.17.14) on a number of > > When starting new, pick something new, i.e. 2.3 right now. Only if you > have good reasons, staying at older versions is recommended. I would love to, but I couldn't get my software running with 2.3. I had to convert (a month ago) my software from RTLinux to Xenomai having only a few days for it. I have a kernel module and an app that talks to it. I use the posix skin. But with 2.3 apparently I had to load posixio and something (forgot) manually, but I just couldn't get these loaded. Since time was running out I decided to stay with 2.2.5 for the time being (unfortunately). > >> systems (MSI 945P, Intel P4 3Ghz). My kernel runs fine on several >> other/older systems, but on the new systems there is something going >> on every 8 seconds. See output of latency test below. What could >> this be? Is this an SMI effect? > > Is CONFIG_XENO_HW_SMI_WORKAROUND selected? What does the kernel output > tell you about if it's working? Do you have an ICH7 chipset on your > board? Would be another reason to update Xenomai (2.3 takes care of it, > 2.2.x doesn't)... :) > > If this all doesn't help, have a look at this tool: > > http://www.xenomai.org/index.php/I-pipe:Tracer > > In any case, please give a feedback on the outcome. Thanks. I will. Theo