From: David Miller <davem@davemloft.net>
To: eric.dumazet@gmail.com
Cc: penguin-kernel@I-love.SAKURA.ne.jp, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org, paulmck@linux.vnet.ibm.com,
shemminger@vyatta.com
Subject: Re: [2.6.34-rc1] CPU stalls when closing TCP sockets.
Date: Wed, 10 Mar 2010 07:33:28 -0800 (PST) [thread overview]
Message-ID: <20100310.073328.141230852.davem@davemloft.net> (raw)
In-Reply-To: <1268150156.3113.12.camel@edumazet-laptop>
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Tue, 09 Mar 2010 16:55:56 +0100
> Le mardi 09 mars 2010 à 15:54 +0900, Tetsuo Handa a écrit :
>> Eric Dumazet wrote:
>> > Nothing comes to my mind, I'll try to reproduce this here.
>>
>> When stopped at (8), Ctrl-C doesn't work.
>>
>> > Is 2.6.33 OK ?
>>
>> Yes. 2.6.33 and earlier are OK.
>
> OK thanks !
>
> I believe commit d218d11133d888f9745802146a50255a4781d37a
> (tcp: Generalized TTL Security Mechanism) might be the bug origin.
>
> I am testing following patch, based on latest net-2.6 tree (including
> the LINUX_MIB_TCPMINTTLDROP bit)
>
> [PATCH] tcp: Fix tcp_v4_rcv()
>
> Commit d218d111 (tcp: Generalized TTL Security Mechanism) added a bug
> for TIMEWAIT sockets. We should not test min_ttl for TW sockets.
>
> Reported-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Applied, thanks everyone.
prev parent reply other threads:[~2010-03-10 15:33 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-09 3:19 [2.6.34-rc1] CPU stalls when closing TCP sockets Tetsuo Handa
2010-03-09 6:37 ` Eric Dumazet
2010-03-09 6:54 ` Tetsuo Handa
2010-03-09 15:55 ` Eric Dumazet
2010-03-09 16:22 ` Stephen Hemminger
2010-03-09 18:58 ` Tantilov, Emil S
2010-03-09 21:44 ` Tetsuo Handa
2010-03-10 15:33 ` David Miller [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20100310.073328.141230852.davem@davemloft.net \
--to=davem@davemloft.net \
--cc=eric.dumazet@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=paulmck@linux.vnet.ibm.com \
--cc=penguin-kernel@I-love.SAKURA.ne.jp \
--cc=shemminger@vyatta.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).