internal error: _native_handle_tap_input

[cgundogan]

I am facing this error when using the rpl_udp example in native.
I guess it might be due to my system upgrade.. I upgraded linux (3.18.6-1 -> 3.19.2-1).
When I start a node it crashes (somewhat randomly).
Is anyone else seeing this?

[jnohlgard]

Did you try running it in gdb?

[cgundogan]

Not that much, I can say that real_read() is returning 0 bytes, which in case results in the mentioned error message.
https://github.com/RIOT-OS/RIOT/blob/master/cpu/native/net/tap.c#L81

[LudwigKnuepfer]

My up-to-date arch does not have these problems.

[jnohlgard]

I'm using a 3.19.0 kernel on Gentoo and I have not seen this problem.

[LudwigKnuepfer]

@cgundogan Maybe you have some network manager or conflicting network tool (e.g. vpn tunnel) or permission management tool installed?

[cgundogan]

@LudwigOrtmann I am not that sure about this as real_read() only returns sporadically 0, so the read operation does work actually.
When I remove the check for the 0 case, native works for me again. See #2686

[cgundogan]

fixed by #2686 , so I am closing this issue.