rewrite src/sys/i386/i386/in_cksum.c

[Alexander Leidinger]

Quoting zhouyi zhou <zhouzhouyi at FreeBSD.org> (from Mon, 9 Jul 2007  
10:55:47 +0800):

> Hey,
>   Since FreeBSD update gcc from 3.4.x to 4.2.0, the FreeBSD gdb   
> remote debugger in i386 platform
> will find the TCP/UPD checksum will not be computed right, when   
> calling macro in_cksum
> which calls in_cksum_skip in src/sys/i386/i386/in_cksum.c in case of  
>  getting rid of -O flag
> supplied to gcc when compiling(The optimize will interfere with   
> comfortable gdb debugging).

>    If someone is interested in it, he can lend me a hand to rewrite   
> all of the similiar cases.

A rewrite (port from DFly) of the IP checksum code exists since a long  
time. ATM I don't remember who ported it (sorry!). I know that Andre  
wanted to review the code as part of his network-fundraising work, but  
I don't remember the outcome (or if there's an outcome at all).

Search the archives of net/current/arch, maybe you can find it there  
and test if it solves your problem.

Bye,
Alexander.

-- 
Ignorance should be painful.

http://www.Leidinger.net    Alexander @ Leidinger.net: PGP ID = B0063FE7
http://www.FreeBSD.org       netchild @ FreeBSD.org  : PGP ID = 72077137