Re: [TCP bug, regression] stuck distcc connections in latest -git

David Miller
2008-07-24T08:37:04Z

From: Ingo Molnar <mingo@elte.hu>
Date: Thu, 24 Jul 2008 10:27:30 +0200

> * Herbert Xu <herbert@gondor.apana.org.au> wrote:
>
> > BTW any reason why you appear to have SACK off?
>
> default distro setup, Fedora 9 and Fedora 8. No extra tweaking that i'm
> aware of.

It's probably a side effect of their turning on syncookies in /etc/sysctl.conf :-/

I thought we added code that would allow enabling those options
even with syncookies enabled? There is code in net/ipv4/syncookies.c
function cookie_check_timestamp() to handle this.

Of course this is a recent addition, so if either side doesn't
have that change.