On 2017-01-25 13:54:15 [+0000], Andy Ng wrote: > Dear List, > > I have an interesting problem on 3.0.35 with the rt56 patch on ARM. > > I have some external events that drive my ISR, which I have set it up > as non_threaded one. > When the interrupt rate is low, 1.8msec things are going fine, but > when the rate is higher, the wake_up call from the isr does not > return. The system is frozen. No Magic SysRq. Nothing. > > All will work fine once I change my ISR to be a threaded one. > > Any ideas where to search? If you you enable lockdep and sleeping-while-atomic warning you should see quite a few warnings. That would be a good starting point to search. > Kind regards, > Andy Sebastian -- 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
