Hi, there's a hunk in patch-2.6.23-rc2-rt2, which looks like a bug-fix, also relevant for the mainline kernel: @@ -477,8 +550,8 @@ static inline void finish_lock_switch(st smp_wmb(); prev->oncpu = 0; #endif -#ifndef __ARCH_WANT_INTERRUPTS_ON_CTXSW - local_irq_enable(); +#ifdef __ARCH_WANT_INTERRUPTS_ON_CTXSW + local_irq_disable(); #endif } #endif /* __ARCH_WANT_UNLOCKED_CTXSW */ But it is not in the mainline until now, although this seems to be affecting both platforms defining __ARCH_WANT_INTERRUPTS_ON_CTXSW and those not defining it. So, my question is - has it been submitted into mainline? If not - why, and what can be consequences of this bug (resp. of fixing it)? Thanks Guennadi --------------------------------- Guennadi Liakhovetski, Ph.D. DSA Daten- und Systemtechnik GmbH Pascalstr. 28 D-52076 Aachen Germany - To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html