On Wed, 2014-07-30 at 16:06 +0100, Scott Ashcroft wrote: [] > At the moment I've blacklisted dw_dmac which stops the crashes. > I was speculating on what sort of fix might get accepted in the kernel. > Stopping the i2c bus being detected based on DMI looked like it might be > easier than trying to force dw_dmac not to load. It seems I understand what is happening there. For now as a quick fix you may disable the driver like you did. I hope we come with some better solution. I wonder if you can that test it. [] > Does having the dw_dmac module loaded actually provide anything useful > on laptop? So, it will affect performance of the devices connected to HSUART and SPI, usually it means GPS, BT. They fall back to PIO instead of DMA. -- Andy Shevchenko <andriy.shevchenko@xxxxxxxxx> Intel Finland Oy -- To unsubscribe from this list: send the line "unsubscribe dmaengine" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
