Re: [Xenomai-help] Xenomai LTTng support

[Vikesh Rambaran <vikesh.rambaran@domain.hid>]

Hi
Hope everybody had a good Easter weekend :)

On Wed, 2009-04-08 at 10:53 +0200, Jan Kiszka wrote:
> vikesh rambaran wrote:
> > Hi
> > 
> > On Tue, Apr 7, 2009 at 1:20 PM, Jan Kiszka <jan.kiszka@domain.hid> wrote:
> > 
> >> Hmm, maybe we have issues with MTRR again. Can you also try X without
> >> CONFIG_MTRR set in the kernel?
> > 
> > 
> > Tried the following combinations on intel and amd platforms
> > 
> > 1. No MTRR on 2.6.28.7 + Xenomai 2.4.7 for Intel core 2
> > 2. No MTRR on 2.6.28.7 + Xenomai 2.4.7 + LTTng for Amd Athlon
> > 
> > Lockup still persists (:
> 
> OK, something to rule out. So I'm hoping for serial/netconsole dumps now
> (don't forget to switch off klogd for this, otherwise the information
> may get lost between crashing ipipe/xenomai and klogd.
> 

Unfortunately, no last words on serial console (:

Stopped klogd (using /etc/init.d/klogd stop) and set dmesg -n 8 prior to
logging into gnome desktop.

Serial console setup with console=115200n81 with minicom on the monitor
PC. Startup messages and other events (eg USB attach/detach) visible

For info, 

1) Lockup seems to occur especially when applications are opened or when
trying to access disks

2) a fellow colleague is using Xenomai 2.4.7 with the 2.6.27 kernel
(without LTTng) with similar lockups.


If there are any other tests that i can do, please let me know ...

> > 
> > Going to compare the vanilla installation message log with that of the
> > xenomai patched installation
> > ("Unable to set hardware clock" is something i don't remember seeing in the
> > vanilla logs - will check again)
> 
> The RTC issue is most probably unrelated, should rather have something
> to do with conflicting old/new RTC config switches (sorry, don't recall
> details ATM).
> 
Yes, agreed. Built the RTC into the kernel and the warning goes away.

Keep well
Vicki