From: John Heffner <jheffner@psc.edu>
To: Robert Iakobashvili <coroberti@gmail.com>
Cc: David Miller <davem@davemloft.net>,
netdev@vger.kernel.org, greearb@candelatech.com
Subject: Re: TCP connection stops after high load.
Date: Mon, 16 Apr 2007 15:11:07 -0400 [thread overview]
Message-ID: <4623CA4B.3000503@psc.edu> (raw)
In-Reply-To: <7e63f56c0704161151p405c4597x5fbac6021b635d84@mail.gmail.com>
Robert Iakobashvili wrote:
> Kernels 2.6.19 and 2.6.20 series are effectively broken right now.
> Don't you wish to patch them?
>
I don't know if this qualifies as an unconditional bug. The commit
above was actually a bugfix so that the limits were not higher than
total memory on some systems, but had the side effect that it made them
even smaller on your particular configuration. Also, having initial
sysctl values that are conservatively small probably doesn't qualify as
a bug (for patching stable trees). You might ask the -stable
maintainers if they have a different opinion.
For most people, 2.6.19 and 2.6.20 work fine. For those who really care
about the tcp_mem values (are using a substantial fraction of physical
memory for TCP connections), the best bet is to set the tcp_mem sysctl
values in the startup scripts, or use the new initialization function in
2.6.21.
Thanks,
-John
next prev parent reply other threads:[~2007-04-16 19:11 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-12 21:11 TCP connection stops after high load Robert Iakobashvili
2007-04-12 21:15 ` David Miller
2007-04-15 12:14 ` Robert Iakobashvili
2007-04-15 15:31 ` John Heffner
2007-04-15 15:49 ` Robert Iakobashvili
2007-04-16 18:07 ` John Heffner
2007-04-16 18:51 ` Robert Iakobashvili
2007-04-16 19:11 ` John Heffner [this message]
2007-04-16 19:17 ` David Miller
2007-04-16 19:15 ` David Miller
2007-04-17 7:58 ` Robert Iakobashvili
2007-04-17 19:39 ` David Miller
2007-04-17 19:47 ` John Heffner
2007-04-17 19:51 ` David Miller
2007-04-17 19:58 ` Robert Iakobashvili
2007-04-15 13:52 ` Robert Iakobashvili
-- strict thread matches above, loose matches on Subject: below --
2007-04-11 18:50 Ben Greear
2007-04-11 20:26 ` Ben Greear
2007-04-11 20:48 ` David Miller
2007-04-11 21:06 ` Ben Greear
2007-04-11 21:11 ` David Miller
2007-04-11 21:31 ` Ben Greear
2007-04-11 21:39 ` David Miller
2007-04-12 2:44 ` SANGTAE HA
2007-04-12 1:06 ` Benjamin LaHaise
2007-04-12 14:48 ` Andi Kleen
2007-04-12 17:59 ` Ben Greear
2007-04-12 18:19 ` Eric Dumazet
2007-04-12 19:12 ` Ben Greear
2007-04-12 20:41 ` Eric Dumazet
2007-04-12 21:36 ` Ben Greear
2007-04-13 7:09 ` Evgeniy Polyakov
2007-04-13 16:42 ` Ben Greear
2007-04-13 16:10 ` Daniel Schaffrath
2007-04-13 16:41 ` Eric Dumazet
2007-04-14 4:21 ` Herbert Xu
2007-04-14 4:25 ` David Miller
2007-04-14 5:31 ` Eric Dumazet
2007-04-14 5:37 ` David Miller
2007-04-11 20:41 ` David Miller
2007-04-12 6:12 ` Ilpo Järvinen
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