[lwip-devel] Bug in core/mem.c

[Matthias Pfaller]

Hi,

I just tracked down a bug in mem.c that leads to sporadic memory
corruption when LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT is active.

I think lfree needs to be declared volatile (static struct mem *
volatile lfree). Otherwise the compiler might use the old value of lfree
at the top of the for-loop in mem_malloc.

regards, Matthias
-- 
Matthias Pfaller                          Software Entwicklung
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