[lwip-devel] [bug #36273] Bug with MEMP_MEM_MALLOC = 0

[dagos]

Follow-up Comment #2, bug #36273 (project lwip):

Configuration LWIP:
PILE_ADDR_IP=10.129.0.11
PILE_NETMASK=255.255.255.0
PILE_ADDR_MAC=00:00:5D:00:00:01

I have 3 threads (look at testeur_bug.c):
2 serveurs threads (1 UDP and 1 TCP)
1 main thread in which client connect to serveur this way:

100 loops:
  2 x TCP client (connect, send, recv, and déconnect) (CAS1)
  2 x UDP client (connect, send, recv, and déconnect) (CAS2)

At a certain time (which is random), there is a bug in pbuf (see below)

I have 2 serveurs threads so I call 'netconn_recv' in each threads (possible
at the same time...). Is this wrong ?

I don't use Interrupts / Callbacks at all.


*** CAS1 ***
CAS1: Fin de la connexion!
CAS1: Connexion TCP acceptée par la pile LWIP sur le port 1100!
CAS1: TEST OK: Donnée TCP reçue coté pile LWIP sur port 1100: *** DONNEE DE
TEST ***!
CAS1: TEST OK: Acquittement reçu: ACK!!

CAS1: Fin de la connexion!

*** CAS2 ***
CAS2: TEST OK: Donnée UDP reçue coté pile LWIP sur port 1100: E!  ====>
BUG!!!
CAS2: TEST OK: Acquittement reçu: E!   ====> BUG!!!

and later:
Assertion "pbuf_free: p->ref > 0" failed at line 627 in
SRC/lwip-1.4.0/src/core/pbuf.c





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