RE: RE : [lwip-devel] Crash Bug

[Julian Gardner [RSD]]

Well just started debugging the assert and the address I have for struct pbuf 
*p is 0x8c04260 which is NOT in my address map! Looks like something is 
corrupting memory pointers.

joolz

-----Original Message-----
From: address@hidden [mailto:address@hidden On Behalf Of Frédéric BERNON
Sent: 17 May 2007 19:20
To: lwip-devel
Subject: RE : [lwip-devel] Crash Bug

Some ideas: Simon also check in a fix for pbuf_free (in ethernetif.c, tcpip.c, 
slipif.c, loopif.c). Try it...
http://savannah.nongnu.org/bugs/?19729

Another thing: do you use LWIP_SNMP? I also got a crash with last changes about 
mem.c, but it seems more that snmp do a memory overwrite, and that new mem.c is 
just more "sensible" to this problem (it's not sure to 100%, but I check with 
Simon).
  
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-----Message d'origine-----
De : address@hidden [mailto:address@hidden De la part de Kieran Mansley
Envoyé : jeudi 17 mai 2007 16:36
À : lwip-devel
Objet : RE: [lwip-devel] Crash Bug


On Thu, 2007-05-17 at 15:25 +0100, Julian Gardner [RSD] wrote:
> Looking through the code it seems to use socket, setsockoption, 
> select, send and recv

So the sockets API.  That should have remained reasonably unchanged as far as 
applications are concerned, which means it's more likely a bug in the recent 
checkin.

> Is there any debug I could turn on to try and find this problem!

Perhaps the most useful thing at this stage would be to narrow it down to a 
precise checkin.  Can you take the CVS code from around the time that you think 
it went wrong (i.e. before and after each checkin) and see which one is at 
fault?

Kieran



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