From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <49A2D47D.90609@domain.hid> Date: Mon, 23 Feb 2009 17:53:17 +0100 From: Jan Kiszka MIME-Version: 1.0 References: <49A1DEBE.6020002@domain.hid> In-Reply-To: Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Subject: Re: [Xenomai-help] rt_task_create with mode T_CPU(1) List-Id: Help regarding installation and common use of Xenomai List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Thomas Schaefer Cc: xenomai@xenomai.org Thomas Schaefer wrote: > > Hi, > > I downloaded kernel 2.6.28.7 and used the xenomai svn revision 4639. > BTW. I can't update my svn repository i get "svn: Can't find a temporary directory: Internal error". > According to Google this means that your svn server is out of disk space. > > After running the new kernel and running ./latency -c1 it hangs after "warming up...". > After ctrl+c I get: > > ^C---|------------|------------|------------|--------|------------------------- > RTS| 4699.016| 0.000| -4699.016| 0| 00:11:21/00:11:21 > > and it still hangs. Except for this windows the system stays responsive. > > Revision 4595 seems to work as expected. > > I tried booting the kernel with maxcpus=2 but it yields the same result. > > I am running debian lenny on a quad core xeon with 3GB ram. > The Kernel is compiled for 64bit. > I attached the kernel config file. You've got CONFIG_X86_HT enabled. In case your CPU actually supports this feature, please try to disable it. Latency-wise, it's no good idea for RT scheduling anyway. I'm not aware of problems related to it, but it's worth a try (and I couldn't test it ATM due to lacking comparable HW). Jan -- Siemens AG, Corporate Technology, CT SE 2 Corporate Competence Center Embedded Linux