Re: [lwip-users] lwIP 1.4.1 stable tcp connection stall

2017-08-09 Thread Bill Auerbach
goldsi...@gmx.de writes: Maybe. As a starter, you should disable everything you can in tcp_output (TCP_OUTPUT_DEBUG, TCP_CWND_DEBUG). Then once the error happens, try dumping the lwip_stats plus the whole tcp_pcb that doesn't send any more. There's no function to do

Re: [lwip-users] lwIP 1.4.1 stable tcp connection stall

2017-08-09 Thread goldsi...@gmx.de
Bill Auerbach wrote: I can debug some, yes, but I’m no expert on this part of lwIP or TCP. So I need help in what information is best to gather. I can pause when the sending stops and get to these variables. Would output from LWIP_DEBUG_ONs (whichever ones are pertinent) show you anything

Re: [lwip-users] lwIP 1.4.1 stable tcp connection stall

2017-08-09 Thread Bill Auerbach
stable tcp connection stall Hey Bill, Great to hear 2.0.2 fixes this. I'm a bit lost thinking about a bug fix. We had some since then I guess, and I would have to dig through the log myself. However, the most obvious would be a zero window where the persist timer doesn't start or somehow doesn't

Re: [lwip-users] lwIP 1.4.1 stable tcp connection stall

2017-08-09 Thread goldsimon
Hey Bill, Great to hear 2.0.2 fixes this. I'm a bit lost thinking about a bug fix. We had some since then I guess, and I would have to dig through the log myself. However, the most obvious would be a zero window where the persist timer doesn't start or somehow doesn't work correctly. Are you

[lwip-users] lwIP 1.4.1 stable tcp connection stall

2017-08-09 Thread Bill Auerbach
Hello group, First, thanks to everyone for the continued development and support of lwIP - it been great to see it so active the past few years. This purpose of this message is to notify lwIP 1.4.1 stable users of a problem, and to see if anyone (i.e. developers) knows the bug report that