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Arnd Bergmann writes: > I got a bug report that I believe might be fixed by this > patch. The problem seems to be that with soft-disabled > interrupts in power_save, we can still get external exceptions > on Cell, even if we are in pause(0) a.k.a. sleep state. [snip] > - local_irq_disable(); > + hard_irq_disable(); This would mean that any platform-specific power_save function that wants to re-enable interrupts (as the pseries ones do) would have to do hard_irq_enable instead of local_irq_enable. Also, I don't think this change will be good on iSeries. What we want is an irq-disable function that is like local_irq_disable but also clears MSR_EE and the hard irq enabled flag (provided we aren't running on iSeries). Paul. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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