Re: [Xenomai-help] large latencies on a Dell D620 dual core laptop

[Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>]

Daniel Simon wrote:
> On Thu, 5 Apr 2007 09:28:15 +0200
> Daniel Simon <Daniel.Simon@domain.hid> wrote:
> 
> 
>>>What is the difference between runlevel 1 and runlevel 3 ?  
> 
> 1 - Basic Single-user mode 
> 2 - Multi-user mode (without NFS but the network interface is up) 
> the basic xeno-tests seem to work normally also in level 2

Does it still run correctly if there is some traffic on the network ?
You could try to ping flood the box for instance ?

> 
> 3 - Multi-user mode with NFS
> 5 - full Multi-user mode with X and NFS
> 
>>Usually, X should only induce high latencies.  
> 
> Inded the behaviour is now very similar in these two runlevels.:
> I loose most of the control: the mouse pointer and
> windows move, I can still switch back and forth between already logged-in
> consoles and X, bust most shell commands do not respond ,e,.g. ls, ps,
> lsmod, rmmod, do not respond (and hence as I cannot rmmod the loaded
> xeno_modules the system does not totally hang :) , CtrlC gives control back.

What does "date" and /proc/interrupt say ? Is the system timer still
ticking ?

> Stangely I still can cd to my remotely nfs mounted homedir, but cannot list its
> content;
> reboot still starts, properly unmount nfs and finally fails to stop eth0.
> 
> However, it seems that problems begin when NFS is up, whatever there are
> remote mounts or not (also happens after a standalone boot)

Could you send us your .config ?

-- 
                                                 Gilles Chanteperdrix