On Tue, 2015-10-27 at 16:45 +0100, Sven Brauch wrote: > Hey Oliver, > > On 27/10/15 16:07, Oliver Neukum wrote: > > the theory that the lack of support for put_char() is a > > major contributor to character loss in cdc-acm can be tested. > > Sven, could you test the attached patch? It implements > > the support. > Thanks a lot for caring about this. I applied the patch to a plain linux > 4.2 tree, but unfortunately I couldn't see any improvements. Applying That is unfortunate. So your problem is with not enough buffers. > the patch I originally sent to the list for comparison still fixed the > issue. Peter, what to do about this? I think there are issues with Sven's original patch. In particular I can't see how it can guarantee progress. Is there a way to just really increase tty buffers, e.g. quadruple them? Sven, could we run a few more tests before we look at your patch again? It really has issues, but it does help and nothing else does. If necessary I will merge an improved version of your patch. Regards Oliver -- 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
