2008/3/20, Piero 74 <[EMAIL PROTECTED]>: > > Ok... i will try to explain my test and the problem. > After i will post a network sniffer report. > > I have a simple pc application (client) which read packet from server and > show in a window. > > My application in board whit lwip works using two task: > - the first task get paccket from serial port, at 115200 baud; packet has > the delimiter, so, at the end of packet, this task send it on queue. > - the second task has a loop with a select on data received on socket, > with a timeout of 50 ms: when timeout expired, loop on queue, get the packet > from queue and call socket function send, and loop again > > i did the test using very small packet (max 30 bytes), sending them on > uart every 100 ms > > After few packets, i saw lwip blocked: in particolar, the task which > manage socket is blocked, i suppose in send function. > I saw that in this case, tcpip thread (i suppose) is looping in > tcp_enqueue function, and in particolar i have: queuelen = TCP_SND_QUEUELEN, > so, TCP_STATS_INC(tcp.memerr) is done.
i'm seeing that code loop in after memerr label in this function... some goto memerr are called! i have options below this post. > > i'm doing other test, i will post some report. > > Piero
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