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RE : [lwip-users] Assertion in lwip_accept
From: |
Frédéric BERNON |
Subject: |
RE : [lwip-users] Assertion in lwip_accept |
Date: |
Wed, 13 Jun 2007 17:56:34 +0200 |
Perhaps it's just a tunning problem. How is defined MEMP_NUM_SYS_TIMEOUT in
your lwipopts.h? Try to add it +10 (large to be sure) and retest. I you always
got the problem, check if in your application you directly use sys_timeout.
Else, there is a sys_timeout for PPP, DHCP(2), AUTOIP(1) IGMP, SNMP(0/1), ARP,
IP, and TCP. If you test with LWIP_STATS=1 and MEMP_STATS=1, you could see what
is the max value for "SYS_TIMEOUT" if you call stats_display().
====================================
Frédéric BERNON
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P Avant d'imprimer, penser à l'environnement
-----Message d'origine-----
De : address@hidden [mailto:address@hidden De la part de Goldschmidt Simon
Envoyé : mercredi 13 juin 2007 15:51
À : Mailing list for lwIP users
Objet : RE: [lwip-users] Assertion in lwip_accept
> I hit an internal lwIP assertion when a TCP connection is accepted:
>
> Assertion "sys_timeout: timeout != NULL" failed at line 188
> in /pathtosource/lwip/core/sys.c
>
> My sys_arch_timeouts function never returns NULL. What can
That would print "sys_timeout: timeouts != NULL" (note the 's').
What you are facing is an empty MEMP_SYS_TIMEOUT pool!
> cause this? This assertion came up with my update to the
> latest CVS revision. I didn't see it in 1.2.0
>
> BTW:
> Is it the right approach to return a unique timeout structure
> per thread in sys_arch_timeouts or have I misunderstood something.
Yes, it is.
Simon
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