From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <4DA6E39A.6030504@domain.hid> Date: Thu, 14 Apr 2011 14:07:54 +0200 From: Gilles Chanteperdrix MIME-Version: 1.0 References: <4D9EB884.6020804@domain.hid> <205D3924-0110-4DA7-838B-DF40BDBE6702@domain.hid> <4D9FB431.6010203@domain.hid> <9948C373-EE10-42D0-A854-DC6A6C38B830@domain.hid> <4DA433B7.5020608@domain.hid> In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Subject: Re: [Xenomai-help] Total system lockup doing anything real-time List-Id: Help regarding installation and common use of Xenomai List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Nolan Waite Cc: xenomai@xenomai.org Nolan Waite wrote: > On 2011-04-12, at 5:12 AM, Gilles Chanteperdrix wrote: > >> In the kernel configuration. Could you try changing the following >> configuration options: CONFIG_FTRACE to n CONFIG_SECURITY to n >> CONFIG_DEBUG_RODATA to n CONFIG_KGDB to n CONFIG_AUDIT to n Could >> you to try a 64 bits kernel (with the 32 bits compatibility layer, >> it should work with a 32 bits rootfs)? > > I changed these settings as asked and switched to a 64-bit kernel (I > had problems cross-compiling, my own fault I'm sure, so I just > grabbed the x86_64 version of Ubuntu 10.04, but used the same kernel > source tree I was using before), and now latency runs no problem! > I've attached the .config here just in case anyone's following along. > > > I'll reenable Analogy or Comedi and see how that goes, but for now > things are looking good. Let me know if there's any logs or anything > you'd like to see. > > Thanks so much for your walking me through the troubleshooting. Very > much appreciated. Well, I am not sure we are through. IMO, we should try and find which of the options solves the issue, starting with the 64 bits build. -- Gilles.