Re: [Xenomai-help] Stability problems with Xenomai install

[Gilles Chanteperdrix <gilles.chanteperdrix@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.