[lwip-devel] [bug #51033] LWIP_ASSERT while doing repetitive transmission

[preet]

Follow-up Comment #1, bug #51033 (project lwip):

As I as fiddling with the LWIP options, it looks like I introduced this
problem.  When I use the default settings, then it works:


#define TCP_SND_BUF                     (5 * TCP_MSS)

//#define TCP_SND_QUEUELEN                (10)            ///< TCP sender
buffer space (pbufs).  Must be at least (2 * TCP_SND_BUF/TCP_MSS)
//#define TCP_SNDLOWAT                    (1 * TCP_MSS)   ///< TCP writable
space (bytes) bofore a socket becomes writable.  This must be less than
TCP_SND_BUF
//#define TCP_SNDQUEUELOWAT               (1)             ///< TCP writable
bufs (pbuf count), when select becomes writable.  This must be less than
TCP_SND_QUEUELEN




Uncommenting the options above makes it hit the assertion but commenting them
out to revert to the defaults at opts.h makes it work.

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