Hi Nick, On Wed, Jun 06, 2012 at 01:36:06PM +0300, N.Karakotas wrote: > Hi, > > Hmm thats a dirty trick! :-) > > I have the lwip stack to 1200 bytes > The ppp thread 1200 bytes. > > The only thing running is the ppp the ethernet is idle. It looks > that something is overflowing or there is a leak in the PPP not > freeing a pbuf. Before I tried to open a PPP connection send data > and close the PPP connection but after 2 days I got > ApplicationMallocFailedHook fired! I don't think the 2 days is a > coisidence??
This is strange, PPP does not allocate memory from malloc(). The only one used malloc() left is in chap_ms.c in case of chap ms auth fail, (and maybe one from EAP auth code). I guess you are not using MSCHAP nor EAP auth. Anyway, you are right about pbuf, ppp_input() does not free pbuf in some cases, this is my fault, but I don't see why it may end with a ApplicationMallocFailedHook() which seems to be a hook when pvPortMalloc() (or something) fails while pbuf are not allocated using malloc()/free() but from a static pre-allocated buffer pool. Sylvain
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