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Date: Thu, 8 Jan 2009 11:47:46 +0800 From: "Wang Xu" <gnawux@...il.com> To: linux-kernel@...r.kernel.org Subject: "Treason uncloaked" issue of TCP Hello, We have a cluster with around 200 nodes, and all of them are installed with CentOS 5.2/2.6.18-92.el5 kernel. And we found many dmesg log as follows: | TCP: Treason uncloaked! Peer 192.168.33.182:55510/60222 shrinks window 977590224:977590304. Repaired. | TCP: Treason uncloaked! Peer 192.168.33.185:55510/49646 shrinks window 2483808366:2483808382. Repaired. | TCP: Treason uncloaked! Peer 192.168.33.133:51316/51560 shrinks window 236559458:236559498. Repaired. | TCP: Treason uncloaked! Peer 192.168.33.115:55510/53342 shrinks window 3977841758:3977841854. Repaired. I searched from the web but cannot get any idea: * its a cluster in lab, no WAN access and only with internal communication, thus it shouldn't be something like attack. * all of them are linux (red hat/centos kernel), hence it must not be other buggy stack * I have checked the source, and it have already with the patch http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=2ad41065d9fe518759b695fc2640cf9c07261dd2 Does anyone have some suggestion? And if you need any more information, I can provide it. Thank you! -- Wang Xu Timothy Leary - "Women who seek to be equal with men lack ambition." -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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