[lwip-users] ARM7TDMI lwIP porting problems

[Alessandro Timossi]

Hi all,
we are trying to port lwIP to ARM7TDMI, using ADS 1.2 suite from ARM (I 
mean the armcc compiler too). But we found some problems related to 
memory allocation.

The fact is that sometimes, without any fixed scheme, a message saying 
that some bytes cannot be allocated appears ("Could not allocate n 
bytes"). But this is strange because  only a few packets have been 
processed which cannot make the memory full. This behaviour probably 
causes other problems such as erroneous de-allocations an pbuf_free 
wrong assertions.

Has someone some experience on this kind of problems? Could it be 
related to errors in memory allocation routines?

Thanks for your help.
Ale

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ALESSANDRO TIMOSSI
Senior Consulting Engineer

Accent Srl - Design Technology Services
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