Re: [Xenomai-help] 2.5.2 + 2.6.32 patched kernel causes system reset

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

Peter Soetens wrote:
> Hi,
> 
> We have a single-core Pentium M industrial PC equiped with Xenomai
> 2.5.2 patched vanilla Linux 2.6.32.7.
> We have two builds of the kernel: one that causes a reliable system
> reset when starting a 'heavy' Orocos application (lot of thread
> creation/deletions), the other is rock solid. We think it is related
> to thread creation in the native skin, since we could at least twice
> cause the reset by just creating a native thread (that was meant to
> block on a semaphore) but this was hard to reproduce. Stack size was
> set to 128k, but only trivial code was executed.We had the impression
> that enlarging the stack size to 256k caused less resets, but it was
> still very frequent. Setting the stack size too low caused segfaults
> in the app, not a kernel crash.
> 
> The stable config and the diffs between both configs are in
> attachment. Read it as: apply this patch to make it unstable. Any
> clues what is the most likely suspect ? Could the xenomai watchdog
> cause the reset ?
> 
> Thanks for any pointers, we're prepared to bisect this, if any one
> knows a tool to do a bisect on a set of config options, we'll be glad
> to use it.

Before investing any more time, please upgrade to Xenomai 2.5.3.


-- 
					    Gilles.