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Date: Wed, 10 Mar 2010 07:33:28 -0800 (PST) From: David Miller <davem@...emloft.net> To: eric.dumazet@...il.com Cc: penguin-kernel@...ove.SAKURA.ne.jp, netdev@...r.kernel.org, linux-kernel@...r.kernel.org, paulmck@...ux.vnet.ibm.com, shemminger@...tta.com Subject: Re: [2.6.34-rc1] CPU stalls when closing TCP sockets. From: Eric Dumazet <eric.dumazet@...il.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@...ove.SAKURA.ne.jp> > Signed-off-by: Eric Dumazet <eric.dumazet@...il.com> Applied, thanks everyone. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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