On Sunday 19 September 2010 18:40:40 Russell King - ARM Linux wrote: > which works fine - and yes, if you insert an ISA driver it probably will > crash. But then you can crash an x86 PC by using setserial to define > a serial port at a wrong address. Sure, if you build the kernel just for one machine, there is no reason to include code that tries to access fixed I/O ports. What I'm more worried about is that as we're moving to multi-platform kernels you want to build for other hardware, e.g. one that has a PC-style keyboard controller and one that has a funny mapping like that. Normally, the driver for the keyboard controller should just access the well-known port number and not find anything there, because PCI devices are mapped above port 0x1000. What you get instead is a kernel NULL pointer access. Arnd -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html