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Date: Sat, 10 Sep 2005 23:22:42 -0500
From: Dan Nelson <dnelson@allantgroup.com>
To: Steven Hartland <killing@multiplay.co.uk>
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Cc: freebsd-hackers@freebsd.org
Subject: Re: setsockopt 228K fails with ERR#55 'No buffer space available'
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In the last episode (Sep 11), Steven Hartland said:
> The following fails with ERR#55 'No buffer space available'
> int buf_size = (228*1024);
> int ret = setsockopt( s, SOL_SOCKET, SO_SNDBUF, (void*) &buf_size, sizeof( 
> buf_size ) );
> 
> This appears like its controlled by kern.ipc.maxsockbuf which is
> default of 256k so the above should work if its per socket and not
> total?

I think you want net.inet.tcp.sendspace; kern.ipc.maxsockbuf seems to
be unused based on a quick grep of the source.

Also check the sockbufsize rlimit, although I think that defaults to
unlimited.

-- 
	Dan Nelson
	dnelson@allantgroup.com