Re: Iptables error [Was: 2.6.16-rc1-mm2]

[Eric W. Biederman]

Linus Torvalds <torvalds@xxxxxxxx> writes:

> On Fri, 20 Jan 2006, Benoit Boissinot wrote:
>> 
>> On x86 (32bits), i have the same i think:
>
> Interestingly, __alignof__(unsigned long long) is 8 these days, even 
> though I think historically on x86 it was 4. Is this perhaps different in 
> gcc-3 and gcc-4?
>
> Or do I just remember wrong?

Nope.  There are compilers where it is 4 byte aligned.
I believe this was actually a C abi change.

I actually had some code break because of it.  A 32bit binary generated
a structure and a 64bit binary couldn't read it.  I hadn't realized
they had changed recent versions of gcc.

Eric
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