From: Evgeniy Polyakov <zbr@ioremap.net>
To: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Ben Greear <greearb@candelatech.com>,
David Miller <davem@davemloft.net>,
Gaspar Chilingarov <gasparch@gmail.com>,
netdev <netdev@vger.kernel.org>
Subject: Re: PROBLEM: Linux kernel 2.6.31 IPv4 TCP fails to open huge amount of outgoing connections (unable to bind ... )
Date: Wed, 21 Apr 2010 22:27:23 +0400 [thread overview]
Message-ID: <20100421182723.GA17202@ioremap.net> (raw)
In-Reply-To: <1271849253.7895.1929.camel@edumazet-laptop>
On Wed, Apr 21, 2010 at 01:27:33PM +0200, Eric Dumazet (eric.dumazet@gmail.com) wrote:
> Here is the patch I use now and my test application is now able to open
> and connect 1000000 sockets (ulimit -n 1000000)
>
> Trick is bind_conflict() must refuse a socket to bind to a port on a non
> null IP if another socket already uses same port on same IP.
>
> Plus the previous patch sent (check a conflict before exiting the search
> loop)
>
> What do you think ?
Looks good, but do we want to check only reused socket's address there?
What if one of the sockets does not have reuse option turned on, will it
break?
--
Evgeniy Polyakov
next prev parent reply other threads:[~2010-04-21 18:27 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-20 22:17 PROBLEM: Linux kernel 2.6.31 IPv4 TCP fails to open huge amount of outgoing connections (unable to bind ... ) Gaspar Chilingarov
2010-04-20 22:31 ` Eric Dumazet
2010-04-20 23:18 ` Gaspar Chilingarov
2010-04-20 23:42 ` Eric Dumazet
2010-04-21 0:14 ` Evgeniy Polyakov
2010-04-20 23:07 ` Ben Greear
2010-04-20 23:20 ` Gaspar Chilingarov
2010-04-20 23:20 ` Gaspar Chilingarov
2010-04-20 23:30 ` Ben Greear
2010-04-20 23:35 ` Gaspar Chilingarov
2010-04-20 23:49 ` Ben Greear
2010-04-20 23:57 ` Gaspar Chilingarov
2010-04-21 0:14 ` Eric Dumazet
2010-04-21 0:05 ` Eric Dumazet
2010-04-21 0:12 ` Gaspar Chilingarov
2010-04-21 0:14 ` David Miller
2010-04-21 0:30 ` Evgeniy Polyakov
2010-04-21 2:04 ` David Miller
2010-04-21 5:46 ` Eric Dumazet
2010-04-21 8:25 ` Evgeniy Polyakov
2010-04-21 9:02 ` Eric Dumazet
2010-04-21 9:58 ` Evgeniy Polyakov
2010-04-21 10:21 ` Eric Dumazet
2010-04-21 11:27 ` Eric Dumazet
2010-04-21 16:52 ` George B.
2010-04-21 18:27 ` Evgeniy Polyakov [this message]
2010-04-21 18:43 ` Eric Dumazet
2010-04-21 18:58 ` Evgeniy Polyakov
2010-04-21 19:26 ` Eric Dumazet
2010-04-21 20:08 ` Evgeniy Polyakov
2010-04-23 2:06 ` David Miller
2010-04-25 14:26 ` Michael S. Tsirkin
2010-04-25 15:56 ` Evgeniy Polyakov
2010-04-25 16:13 ` Eric Dumazet
2010-04-25 16:21 ` Eric Dumazet
2010-04-25 16:35 ` Michael S. Tsirkin
2010-04-25 22:08 ` David Miller
2010-04-21 19:03 ` Narendra Choyal
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