Re: [lwip-users] makefs and mem_free errors

[address@hidden]

Am 02.04.2019 um 20:39 schrieb Mike Spenard:
> Correct, I misspoke... I simply meant 'generated' fsdata.c rather than
> compiled.
>
> I traced the "mem_free: mem->used" bomb out to the 404.html missing from
> fsdata.c
> The http_get_404_file() function checks for it missing:
>
>       if (err != ERR_OK) {
>          /* 404.htm doesn't exist either. Indicate to the caller that it
> should
>           * send back a default 404 page.
>           */
>          *uri = NULL;
>          return NULL;
>
> ...however, http_find_file() doesn’t have any code to properly handle that
> NULL:

Hmm, that might still be missing in HEAD, too. I never checked, I guess.

>      } else {
>        file = http_get_404_file(hs, &uri);
>      }
>
> I assume this is why I end up with a pbuf structure of heap allocated by
> never flagged as Used. Which causes free_mem() to bomb out  ...?

Might be.

> I'm a new player here, so has this been fixed in newer code than NXP
> provided me with? Or am I misunderstanding things?

No, seems to be in here still. We had some handling for a compiled-in
default 404 page, don't know what happened to that.

Would you mind filing a bug so that this doesn't get forgotten?

Regards,
Simon