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Date: Tue, 1 May 2007 22:07:08 +0400 From: Evgeniy Polyakov <johnpol@....mipt.ru> To: Benjamin LaHaise <bcrl@...ck.org> Cc: John Heffner <jheffner@....edu>, David Miller <davem@...emloft.net>, netdev@...r.kernel.org Subject: Re: [PATCH] TCP FIN gets dropped prematurely, results in ack storm On Tue, May 01, 2007 at 02:04:05PM -0400, Benjamin LaHaise (bcrl@...ck.org) wrote: > I know it's a bug, and I'm trying to fix it, but that doesn't change the > fact that A) the system is already deployed and B) Linux is not retransmitting > the FIN, which (from Linux's point of view) remains unacknowledged by the > other side. The patch might be wrong, but the goal of fixing the behaviour > isn't. It does retransmit fin: 10:23:32.298477 IP (tos 0x0, ttl 255, id 39972, offset 0, flags [DF], proto: TCP (6), length: 52) 192.168.1.1.59192 > 192.168.2.2.bgp: F, cksum 0x5558 (correct), 1562038077:1562038077(0) ack 2624175183 win 183 <nop,nop,timestamp 1549356119 781231> 10:23:32.599809 IP (tos 0x0, ttl 255, id 39973, offset 0, flags [DF], proto: TCP (6), length: 52) 192.168.1.1.59192 > 192.168.2.2.bgp: F, cksum 0x542b (correct), 1562038077:1562038077(0) ack 2624175183 win 183 <nop,nop,timestamp 1549356420 781231> 10:23:33.201722 IP (tos 0x0, ttl 255, id 40802, offset 0, flags [DF], proto: TCP (6), length: 52) 192.168.1.1.59192 > 192.168.2.2.bgp: F, cksum 0x51d1 (correct), 1562038077:1562038077(0) ack 2624175183 win 183 <nop,nop,timestamp 1549357022 781231> 10:23:34.405537 IP (tos 0x0, ttl 255, id 40914, offset 0, flags [DF], proto: TCP (6), length: 52) 192.168.1.1.59192 > 192.168.2.2.bgp: F, cksum 0x4d1d (correct), 1562038077:1562038077(0) ack 2624175183 win 183 <nop,nop,timestamp 1549358226 781231> -- Evgeniy Polyakov - 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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