Hi Clemens, On Wed, Jun 21, 2017 at 11:05 AM, Clemens Gruber <clemens.gruber@xxxxxxxxxxxx> wrote: > > I'd also prefer fixing the underlying problem. Yes, that would be much better. > If you take a look at the DMA parts in drivers/tty/serial/imx.c, can you > spot anything SMP-unsafe? Not really. > By the way, can you get your hands on an i.MX6Q board with RS-485 to > reproduce it? Unfortunately I don't have such hardware. Even the mx6solo board that I used to have access in the past I do not have it anymore. > We could try for a few more weeks to find the bug and if we don't find > it, adding this rs485-enabled-at-boot-time property sounds good! Sounds like a good plan, thanks. -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html