Re: [lwip-users] Submit response

[Kieran Mansley]

On 16 Jul 2012, at 16:51, address@hidden wrote:

> I am using lwip on a TI LM3S6965 without RTOS.
> 
> I have a web page with 12 checkboxes and a couple of select lists within a 
> form
> that is handled by a CGI handler in the program.
> 
> I know that a checkbox only sends data when it is checked.
> 
> If I check all 12 boxes and press the submit button the page immediately
> shows an error. "unable to display page" and the CGI never gets called.
> 
> If I only check 10 or less boxes the CGI gets called and all is fine.
> 
> I have tried increasing MEMP_NUM_PBUF to 36 and increasing MEM_SIZE to 24K in 
> the lwipopt.h file.
> But it didn't help.  I suspect it has something to do with memory.


I agree it probably is memory, or perhaps with the increased number of 
check-boxes ticket the request size overflows some limit.  If you get a packet 
capture that might highlight some problem.

Kieran