netjack crash issue in JackMidiPort.cpp

[FlorianBador]

Hi there,

All machines are:
jack-1.9.10
Linux 3.14.12-rt9
Slackware based, most things recompiled native.

I run netjack at 96KHz with: jack_netsource -H 192.168.200.2 -i64 -o0 -O24 -I0 -b32 -n1 -p 5000 -N sampler
This is to connect Ardour on a machine to LinuxSampler on another.
Everything works fine most of the time without xruns, but from time to time I get this crash, especially when under pressure of many midi notes:

jack_netsource: ../common/JackMidiPort.cpp:133: void Jack::MidiBufferMixdown(void_, void_*, int, jack_nframes_t): Assertion `next_event != 0' failed.

It is always the same and happens once or twice an hour in my workflow.
I can't find anything related to that.
Any idea where to start / what I can do?

The source line 133: https://github.com/jackaudio/jack2/blob/master/common/JackMidiPort.cpp#L133
Seems like a similar issue but gives no clue: https://code.google.com/p/amsynth/issues/detail?id=64

Thanks a lot!

[Deleted user]

Please delete, just realized this is jack2 and I am reposting it there.