Re: [Xenomai] issues with debugging enabled

[Philippe Gerum <rpm@xenomai.org>]

On 11/12/2013 09:34 PM, Gilles Chanteperdrix wrote:
>
> Hi,
>
> for a change, I ran the xeno-regression-test with a lot of debugging and
> options known to having caused problems in the past and found two issues:
>
> on x86 SMP, with full dynticks and debugging enabled (preemptible kernel
> debugging, mutex, spinlocks, and sleep inside spinlocks), I get the
> series of warnings at the end of the mail.

Our IRQ deferral might conflict with the RCU state logic (e.g. 
rcu-irq_enter/exit).

>
> on ARM, when a fault occurs, the fault ode is entered with hardware irqs
> off (this is a recent change in the mainline kernel, this code used to
> be executed with hardware irqs on), so I do:
>
> ipipe_stall_root();
> hard_local_irq_enabled();
>
> But the context checking does not like that.
>

You mean ipipe_root_only() triggers over the stall point?

-- 
Philippe.