Re: [lwip-users] initialisation of lwIP

[Jack.W]

 i think that this debug error  has nothing to do with the size of pbuf , and  
you  can  modify the alignment size of your pc . 
----- Original Message ----- 
From: "franz keuner" <address@hidden>
To: <address@hidden>
Sent: Wednesday, December 22, 2004 12:30 AM
Subject: [lwip-users] initialisation of lwIP 


> Hello,
> I tried the pbuf.c which you sended to me. But still the programme stops
> during my attempt to execute pbuf_init() with the following debug message:
> mem_init()
> mem initialized.
> memp_init();
> memp initialized.
> pbuf_init();
> Assertion "pbuf_init: pool aligned" failed at line 106 in
> c:\scr_lwip\lwip\src\core\pbuf.c
> 
> The modified pbuf.c reports the same message but continues the execution.
> The complete code of the original pbuf.c is part of the modified.
> 
> The following function is executed in the modified pbuf.c in the function
> pbuf_init() before the problem occurs:
> void pbuf_statistics_init(void)
> {
>  int i;
> 
>  LWIP_DEBUGF( PBUF_DEBUG | 2, ("*** pbuf statistics: initializing\n") );
> 
> pbufstats_pbuf_counter = 0;
> 
> for(i = 0; i < MAX_PTR; i++)
> {
> pbufstats_mempointers[i].ptr   = (void*) -1;
> pbufstats_mempointers[i].flags = -1;
> }
> }
> 
> used definitons:
> typedef struct memptr_struct {
> void *ptr;
> int  flags;
> } pbufstats_memptr;
> /* maximum number of pbuf pointers we want to track   */
> #define MAX_PTR 50 
> pbufstats_memptr pbufstats_mempointers[MAX_PTR];/**< allocate memory for
> tracking MAX_PTR pbuf pointers */
> 
> I also tried a lot of different values for the buffer sizes but all with the
> same result.
> 
> But to make it even more confusing:
> I get the following results executing the programme with the modified
> pbuf.c:
> 
> mem initialized.
> memp initialized.
> *** pbuf statistics: initializing
> Assertion "pbuf_init: pool aligned" failed at line 276 in
> c:\progate\scr_lwip\lwip\src\core\pbuf.c
> pbuf initialized.
> netif initialized.
> etharp initialized.
> ip initialized.
> udp initialized.
> tcp initialized.
> TCP/IP initialized.
> (netif_add(ethif, &ipaddr, &netmask, &gw, NULL,  cs8900if_init,
> ip_input);netif_set_default(ethif); //that`s the next command)
> 
> ?##?¥Z¬###   Assertion "mem_malloc: !lfree->used" failed at line 294 in
> c:\scr_lwip\lwip\src\core\mem.c
> Assertion "mem_malloc: allocated memory not above ram_end." failed at line
> 298 in c:\scr_lwip\lwip\src\core\mem.c
> Assertion "mem_malloc: allocated memory properly aligned." failed at line
> 300 in c:\scr_lwip\lwip\src\core\mem.c
>     netmask  gw
> (en
> Start Complete.
> 
> So it seems to me that in spite of a few warnings lwip is ready.
> 
> But if I press the reset button of the board the execution of the programme
> --after one "successful" attempt--  stops after the message:
> Assertion "mem_malloc: allocated memory properly aligned." failed at line
> 300 in c:\scr_lwip\lwip\src\core\mem.c
> 
> So I don`t know what`s exactly going on...
> 
> Thanks for your help, bye
> Franz
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
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