Re: [Xenomai-help] Kernel panic with Xenomai SMP kernel

[Philippe Gerum <rpm@xenomai.org>]

On Fri, 2006-09-01 at 01:16 +0200, Gilles Chanteperdrix wrote:
> Jeff Webb wrote:
>  > Hello Xenomai crew,
>  > 
>  > A few months ago, I tried out xenomai 2.1-rc3 and 2.1-rc4 on my Fedora Core 1 system.  (2.4 kernel / standard AMD Athlon XP machine.)  At that time, I was able to patch the kernel and install xenomai without too much trouble.
>  > 
>  > Now, I am setting up a new machine to start the more serious work of
>  > porting our existing rtlinux simulation to xenomai.  The new machine
>  > is an Athlon64 X2 processor running Fedora Core 5.  I realize that
>  > the x86_64 architecture is not supported, so I installed the 32-bit
>  > version of FC5 on a second partition for use with xenomai.  I
>  > attempted to compile a xenomai-patched SMP kernel using my 32-bit OS,
>  > but got a kernel panic when I tried to boot it.  After much fiddling
>  > with config options, I discovered that if I disable SMP, the kernel
>  > will boot fine, and the xenomai latency test appears to give good
>  > results.  This is a good sign, but I would obviously prefer to use my
>  > second processor, if possible.  I am hoping someone on this list will
>  > be able to help me track down the problem. 
> 
> Do you have spinlock debugging enabled ? If yes, try turning it
> off.

Hopefully, the former issue with CONFIG_DEBUG_SPINLOCK has been fixed in
Adeos rev. 1.3-08 (this was a 2.6-only issue). So any later patch should
be immune from this bug.

>  Could you also post your full .config ?
> 
> 
-- 
Philippe.