[lwip-devel] [bug #49533] TCP connection deadlocks upon dropped window update due to not filling window

[Joel Cunningham]

Follow-up Comment #3, bug #49533 (project lwip):

Simon,

I'm fine with starting the persistent timer in the specific case I've
identified.  I'm a little surprised at the suggestion because this was LwIP's
legacy behavior which was removed in bug #34517 (commit
d8f090a7595a79050c435545d00efc1261b9691c).

Are you more comfortable with using the persistent timer with the extra
conditions I've identified (making sure wnd is snd.wnd and pcb->unacked ==
NULL)?  The old behavior would start the timer at the end of sending a
window's worth of data if there was still a segment that didn't fit

I can do some testing with this solution in my test environment.

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