Hi I am using 2.6.33.7-rt29 with RT_PREEMPT for I have a custom MPC8313 board with a signal on the IRQ0/MCP_IN pin. With 2.6.33.7-rt29 configured with RT_PREEMPT I don't get a machine_check_exception when the IRQ0 pin goes low. Configuring the same kernel with PREEMPT instead, I get the machine_check_exception. Using 2.6.33 configured with PREEMPT also works. Any known issues? I have been digging a bit around, and is open to suggestions on where to go next. /Esben -- 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