fetch hangs, part 2

[Darren Pilgrim]

> From: Robert Watson [mailto:rwatson at freebsd.org] 
> 
> 
> On Tue, 20 Jul 2004, Darren Pilgrim wrote:
> 
> > I've been having the same (or a similar problem).  Fetching the distfile
> > for a port will hang.  I poked some more at this and found that all the
> > sites fetch is hanging on successfully negotiate the TCP connection then
> > go dead without closing the connection.  My workaround has been to edit
> > the Makefile and remove the offending site from MASTER_SITES or manually
> > fetch from ftp.freebsd.org. 
> 
> Could you try disabling TCP SACK

Set net.inet.tcp.delayed_ack=0?

> and see if things "get better"?  It's one
> of the things that has changed in the TCP code recently.  This could well
> be a user space fetch issue, but it would be worth trying it to see, if
> only to rule it out.

It didn't change.  The connections still hung.