Re: [lwip-users] Problems when setting MEMP_MEM_MALLOC

[Giuseppe Modugno]

Il 14/03/2018 20:24, address@hidden ha scritto:
> On 14.03.2018 17:09, Giuseppe Modugno wrote:
> > #define MEM_LIBC_MALLOC   1
> >
> > If I try to set MEMP_MEM_MALLOC, I have some strange problems.
>
> I suspect threading issues. I checked on win32 and it seems to work 
> fine. In the end, there's not really much lwIP does here, everything 
> is delegated to your C library's malloc code. Maybe that code isn't 
> thread-safe? In that case, you need to define mem_clib_*() to wrapper 
> functions that protect the heap.

I'm using NewlibNano as C library. However I'm using NOSYS=1 and I don't 
use threads. In my application, "threads" are only interrupt service 
routines, but I don't call mem_malloc from any ISR (I don't think lwip 
uses interrupts at all).

So I don't think it is caused by a threading issue.