From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <498035D1.2090905@domain.hid> Date: Wed, 28 Jan 2009 10:39:13 +0000 From: Gilles Chanteperdrix MIME-Version: 1.0 References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: Re: [Xenomai-help] Stability problems with Xenomai install List-Id: Help regarding installation and common use of Xenomai List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Edward Robbins Cc: xenomai@xenomai.org Edward Robbins wrote: > Hi, > > I have installed version 2.4.6.1 of Xenomai with kernel 2.6.27.2 > compiled for x86_64 on a Core2Duo Ubuntu 8.10 system. Having tried many > different options I still cannot get a system running that does not hang > when running xeno-test. I have disabled graphics (X) completely as I > thought it could be related, and this appears to stop the system > hanging, but if I generate some load, by e.g. doing a kernel compile in > another VT, the system hangs after a short time while running latency or > switches tests, and sometimes hangs anyway, always at a seemingly random > point during the test. Latencies themselves seem reasonable (max 10uS). > > One thing: previously xeno-test was not running and instead displaying > 'something died a xxxx or' (xxxx is a pid I believe) so I edited the > line 'if test 0 -eq $withBusybox ; then' to read 'if test 1 -eq > $withBusybox; then'. I am not sure if this has adverse effects? I saw > this same issue reported a couple of times in the mailing list, but not > resolved - advice was to read TROUBLESHOOTING which I have done and > tried several things to no avail. > > The kernel is compiled with the following possibly relevant options: > > Processor type & features > SMP support enabled, > low latency pre-emption model enabled, > SMT (Hyperthreading) scheduler support disabled, > Interrupt pipeline enabled, > Power > Processor ACPI disabled, About ACPI. Is ACPI globally disabled? If yes, you should try enabling ACPI, only disabling the "processor" and "thermal" modules. > CPU frequency scaling disabled, > Real-time > Interrupt shield support enabled > Statistics collection enabled > Watchdog support enabled > SMI globally disabled (I am using an ICH7 chipset and wanted to > be sure this wasn't the problem) This may be a bad idea, your bios may rely on SMI being enabled for your machine to work correctly. > All interfaces/APIs enabled > All drivers enabled > > 'dmesg | grep enom' looks reasonably normal as far as I can tell. I can > provide any logs, command outputs, kernel config or other details that > may be needed. Please send us your .config. -- Gilles.