On Thu, Aug 6, 2015 at 12:44 AM, Tom Rondeau <[email protected]> wrote:
> On Wed, Aug 5, 2015 at 2:07 AM, bob wole <[email protected]> wrote: > >> Ubuntu 14.04 64-bit >> Gnuradio 3.7.8rc1 >> >> >> I am running this flowgraph "fecapi_async_to_stream.grc" that comes with >> gr-fec. After running for a while following error always show up >> >> .... >> .... >> DEBUG: 16384, 560, 272 >> DEBUG: 16384, 560, 272 >> FATAL: Missing a required length tag on port 0 at item #14965440 >> thread[thread-per-block[7]: <block fec_tagged_decoder (7)>]: Missing >> length tag. >> >> The only thing that changes is the item#. >> Testing further .... >> >> >> -- >> Bob >> > > Bob, > > You led us down a buggy path on that one. This, I'm pretty sure, is > related to Richard Bell's problem for a few weeks ago where adding a time > sink caused problems in his data stream. I have to say, I kind of dismissed > that as impossible, but nope, it's a real problem. > > The problem isn't with the GUI sinks; you can replace them with null sinks > and you get the same problem. It's a race condition in our tag pruning > method that was changed in 3.7.6. We have a patch that we're putting in now > that will be part of 3.7.8. > > The patch goes backwards a bit to how tag pruning was originally done. > However, with the map, we no longer have to restart the iterator at begin() > like we used to, and we can terminate early, so this should still be much > faster than the original. > > Tom > > > Tom, Thanks for the update. Which block exactly is causing this? Should I wait for version 3.7.8 then? -- Bob
_______________________________________________ Discuss-gnuradio mailing list [email protected] https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
