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Bug 249237

Summary: IPV4 'Treason uncloaked' message - hints at a more general kernel/net bug
Product: Red Hat Enterprise Linux 3 Reporter: Anton Arapov <anton>
Component: kernelAssignee: Anton Arapov <anton>
Status: CLOSED ERRATA QA Contact: Martin Jenner <mjenner>
Severity: urgent Docs Contact:
Priority: urgent    
Version: 3.9CC: dhoward, jan.iven, nobody, tao, tgraf
Target Milestone: ---   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: RHSA-2007-1049 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2007-12-03 15:37:57 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 238725    
Bug Blocks:    
Attachments:
Description Flags
patch for treason warnings derived from upstream change none

Description Anton Arapov 2007-07-23 06:19:53 UTC 
+++ This bug was initially created as a clone of Bug #238725 +++

Description of problem:

IPV4 networking stack emits the following type of messages occasionally

TCP: Treason uncloaked! Peer A.B.C.D:4138/80 shrinks window
2421420804:2421422264. Repaired.
TCP: Treason uncloaked! Peer E.F.G.H:5013/80 shrinks window 281635575:281635576.
Repaired.
TCP: Treason uncloaked! Peer I.J.K.L:38740/80 shrinks window
1393004015:1393005475. Repaired.

Version-Release number of selected component (if applicable):

kernel-2.6.9-55

How reproducible:

Tricky

Steps to Reproduce:
1. run networking and wait.
2.
3.
  
Actual results:


TCP: Treason uncloaked! Peer A.B.C.D:4138/80 shrinks window
2421420804:2421422264. Repaired.
TCP: Treason uncloaked! Peer E.F.G.H:5013/80 shrinks window 281635575:281635576.
Repaired.
TCP: Treason uncloaked! Peer I.J.K.L:38740/80 shrinks window
1393004015:1393005475. Repaired.

Expected results:

no logs.

Additional info:

Root cause has been identified and fixed upstream 

http://kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=2ad41065d9fe518759b695fc2640cf9c07261dd2
Comment 1 Anton Arapov 2007-07-23 06:19:53 UTC 
Created attachment 159762 [details]
patch for treason warnings derived from upstream change
Comment 8 Don Howard 2007-11-14 09:27:08 UTC 
A patch for this issue has been included in build 2.4.21-53.EL.
Comment 12 errata-xmlrpc 2007-12-03 15:37:57 UTC 
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHSA-2007-1049.html