On Mon, Nov 16, 2015 at 11:25 PM, Hannes Frederic Sowa <han...@stressinduktion.org> wrote: > Have a look at __dev_queue_xmit and the per_cpu recursion limits > implemented there: > > if (__this_cpu_read(xmit_recursion) > > RECURSION_LIMIT) > goto recursion_alert;
Ahh, thanks for pointing that out. So this works with virtual devices with no queue. As of some recent changes, that now applies to what I'm doing. Unfortunately, I get a complete hard crash, with the blinking keyboard. The only thing written to serial before it dies is: [ 171.347446] Dead loop on virtual device wg0, fix it urgently! This means it did hit that recursion condition, which is good. I assume the recursion limit is just too high, and this has something to do with me overflowing the stack. I'll test this hypothesis and see if I can add a similar check inside my driver to make it lower. If this works, I'm satisfied. Thanks a lot for the pointer here. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
