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Dear all:
The whole source code can be described
as
first call socket(AF_INET, SOCK_STREAM, 0)
then call connect() function to connect to modbus slave, which
is a modbus simulation software
then call send() function to send modbus request
then call recv() function to recieve modbus
response.
All the data operation is using a global
array, where is the assertion failure comes from?
----- Original Message -----
Sent: Saturday, July 26, 2008 6:56 PM
Subject: [lwip-users] What's wrong according
to logs
Dear all:
I port LwIP 1.1.1 to at91sam7x256 with
rtl8201 phy, and write a modbus tcp procotol, now I test my modbus tcp
procotol, the system run for about 30 minutes, the log will like
this:
Assertion "pbuf_free: p->ref > 0" failed at line 574
in E:\work\7x256.200807251944\7x256\src\LwIP\src\core\pbuf.c
Assertion
"mem_free: legal memory" failed at line 149 in
E:\work\7x256.200807251944\7x256\src\LwIP\src\core\mem.c
Assertion
"p->next != NULL" failed at line 790 in
E:\work\7x256.200807251944\7x256\src\LwIP\src\core\pbuf.c
Assertion
"p->len < p->tot_len" failed at line 788 in
E:\work\7x256.200807251944\7x256\src\LwIP\src\core\pbuf.c
Assertion
"p->len < p->tot_len" failed at line 788 in
E:\work\7x256.200807251944\7x256\src\LwIP\src\core\pbuf.c
Assertion
"p->next != NULL" failed at line 790 in
E:\work\7x256.200807251944\7x256\src\LwIP\src\core\pbuf.c
lwip_send(0,
data="" size=12, flags=0x0)
lwip_send(0) ok size=12
TCP Sent"00
94 00 00 00 06 01 03 00 00 00 32
lwip_recvfrom(0, 0000d3e9, 8, 0x0,
..)
Assertion "pbuf_free: sane flags" failed at line 561 in
E:\work\7x256.200807251944\7x256\src\LwIP\src\core\pbuf.c
Assertion
"pbuf_free: p->ref > 0" failed at line 574 in
E:\work\7x256.200807251944\7x256\src\LwIP\src\core\pbuf.c
Assertion
"pbuf_free: p->ref > 0" failed at line 574 in
E:\work\7x256.200807251944\7x256\src\LwIP\src\core\pbuf.c
Assertion
"mem_free: legal memory" failed at line 149 in
E:\work\7x256.200807251944\7x256\src\LwIP\src\core\mem.c
Assertion
"p->next != NULL" failed at line 790 in
E:\work\7x256.200807251944\7x256\src\LwIP\src\core\pbuf.c
Assertion
"p->len < p->tot_len" failed at line 788 in
E:\work\7x256.200807251944\7x256\src\LwIP\src\core\pbuf.c
Assertion
"p->len < p->tot_len" failed at line 788 in
E:\work\7x256.200807251944\7x256\src\LwIP\src\core\pbuf.c
Assertion
"p->next != NULL" failed at line 790 in
E:\work\7x256.200807251944\7x256\src\LwIP\src\core\pbuf.c
Assertion
"pbuf_free: sane flags" failed at line 561 in
E:\work\7x256.200807251944\7x256\src\LwIP\src\core\pbuf.c
lwip_recvfrom(0):
buf == NULL!
But I only use static memory which is allocated
by predefined array, like unsigned char gszMbAduData[DC_MB_ASCII_ADU_LENGTH].
What is the problem? Thanks.
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