Can you test with current CVS HEAD? I have a device with four TCP servers (HTTP, Telnet, audio a video server), and I never got such problem... ==================================== Frédéric BERNON HYMATOM SA Chef de projet informatique Microsoft Certified Professional Tél. : +33 (0)4-67-87-61-10 Fax. : +33 (0)4-67-70-85-44 Email : [EMAIL PROTECTED] Web Site : http://www.hymatom.fr ==================================== P Avant d'imprimer, penser à l'environnement
-----Message d'origine----- De : [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] De la part de Nicolas Pinault Envoyé : mercredi 13 juin 2007 13:39 À : [email protected] Objet : [lwip-users] Sys.c bug Hi all, I have the following : - 2 tasks that use a socket each in server mode. - System starts up : ok - Each task waits for a connection (accept) : ok - Connections are established by a client : ok - Both connections are stopped by client : ok - Both tasks close connection and wait for another connection (accept): ok - After 70 seconds the system crashes because of a NULL pointer access. - If a client reconnects before 70sec, it is ok. - When connection is closed, the system crashes 70sec after the connection has been closed (task are waiting for a connection). All versions of lwip are concerned. I am currently using lwip V1.2.0 I have solved the problem by modifying sys_mbox_fetch function in sys.c module : . . . if (time == SYS_ARCH_TIMEOUT) { /* If time == SYS_ARCH_TIMEOUT, a timeout occured before a message could be fetched. We should now call the timeout handler and deallocate the memory allocated for the timeout. */ tmptimeout = timeouts->next; if (tmptimeout != NULL) /* ADDED */ { timeouts->next = tmptimeout->next; h = tmptimeout->h; arg = tmptimeout->arg; memp_free(MEMP_SYS_TIMEOUT, tmptimeout); if (h != NULL) { LWIP_DEBUGF(SYS_DEBUG, ("smf calling h=%p(%p)\n", (void *)h, (void *)arg)); h(arg); } } /* We try again to fetch a message from the mbox. */ goto again; } else { . . . I'm afraid this hides a more serious problem. Nicolas _______________________________________________ lwip-users mailing list [email protected] http://lists.nongnu.org/mailman/listinfo/lwip-users
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