Kieran Mansley schrieb:
On Mon, 2009-06-29 at 07:42 +0200, Bernhard 'Gustl' Bauer wrote:
Unfortunately I have no
access to the status output when this happens.
Any idea what can be done about this.
Without some more information about how and why it's crashing there's
not a lot that we can do I'm afraid.
I just went through my defines. There are two I'm not sure about it:
Part of lwipopts.h:
------------
/**
* MEMP_NUM_TCP_PCB: the number of simulatenously active TCP connections.
* (requires the LWIP_TCP option)
*/
//#define MEMP_NUM_TCP_PCB 5
//#define MEMP_NUM_TCP_PCB 10
//#define MEMP_NUM_TCP_PCB 60
#define MEMP_NUM_TCP_PCB 100
/**
* MEMP_NUM_TCP_PCB_LISTEN: the number of listening TCP connections.
* (requires the LWIP_TCP option)
*/
//#define MEMP_NUM_TCP_PCB_LISTEN 8
#define MEMP_NUM_TCP_PCB_LISTEN 16
-----------
The default values are MEMP_NUM_TCP_PCB = 5 and MEMP_NUM_TCP_PCB_LISTEN
= 8. I wonder why there should be more listening connections
than active connections. Shouldn't the numbers be equal?
I can remember having troubles with low MEMP_NUM_TCP_PCB numbers so I
increased it to 100.
What happens if a TCP connection goes from listening to active? Is
another listening created? When I set MEMP_NUM_TCP_PCB_LISTEN back to 8
my situation seams to improve a bit.
TIA
Gustl
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