here i attached a wireshark file... I didn't understand what is the problem.... Anyone can explain me??
my ip board is 192.168.0.101 pc ip is 192.169.0.1 2008/3/20, Piero 74 <[EMAIL PROTECTED]>: > > > > 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 > > >
test.pcap
Description: Binary data
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