[lwip-users] tcp_tmr goes into infinite loop with tcp_active_pcbs

[Sylvain Bernard]

Hi all, I've got a system running a connection-less tcp client which periodically opens/sends/closes some telemetry to a backend.

 

On occasion, when a connection failure occurs (link/server is down), the following open connection that succeeds (server/link is back online) will result in its tcb listed in the tcp_active_pcbs BUT pointing back to itself, which causes an infinite loop in tcp timer.

 

I've seen a couple old posts on a similar issue but no mentions on a possible cause/resolution.  Any idea?

 

note: the lwip stack is running in a single-threaded environment (no OS)

 

Sylvain

Email: address@hidden

Web: www.siana-systems.com

Tel: (858) 480-7271

 

"The difficult I do immediately, the impossible just takes a bit longer."

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