Re: [lwip-users] lwip crashing, apparently in sys_check_timeouts

2018-08-24 Thread Sergio R. Caprile
You can just check the code yourself, but no, sys_check_timeouts() should return asap since it is meant to be called as frequently as possible (afap?) and living in the main loop of many systems. However, from time to time, something needs to be done, like for example resending a TCP segment, so

Re: [lwip-users] lwip crashing, apparently in sys_check_timeouts

2018-08-20 Thread Stephen Cowell
When presented with problems like this I start by replacing all the default handlers with handlers that log a hit.  Since you have NVR that you can read and write this should be easy... I use my User Page Flash for the same purpose.  This will help you divide-and-conquer. __ Steve . On

[lwip-users] lwip crashing, apparently in sys_check_timeouts

2018-08-20 Thread Keith Rubow
I am using lwip 2.0.3 with NO_SYS = 1 on a bare metal 386ex processor with a Wiznet IIM7010A ethernet interface operating in MAC RAW mode. Yes, this hardware is REALLY old, but we have lots of hardware out in the field and need to fix a problem, and lwip seems like the best way to fix it. My