Bug 131736 - (IT_49020) tftp-server 0.32 is broken
tftp-server 0.32 is broken
Product: Red Hat Enterprise Linux 3
Classification: Red Hat
Component: tftp (Show other bugs)
All Linux
medium Severity medium
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Assigned To: Radek Vokal
David Lawrence
Depends On:
Blocks: 123574
  Show dependency treegraph
Reported: 2004-09-03 15:12 EDT by Joshua Jensen
Modified: 2007-11-30 17:07 EST (History)
2 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2004-12-21 10:34:07 EST
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Verified Versions:
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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Description Joshua Jensen 2004-09-03 15:12:09 EDT
Description of problem:

Cisco IOS version 12.2 has problems with tftp-server 0.32 as shipped
with RHEL3.  The problems as already been corrected in version 0.37
though... from http://www.kernel.org/pub/software/network/tftp/CHANGES:

Changes in 0.37:
	Fix a pathology where a client sending ACKs for the wrong
	packet can prevent proper retransmission.

This is the fix that Cisco IOS 12.2 and probably other tftp clients
need.  Please publish an errata with 0.37 !
Comment 2 Elliot Lee 2004-09-13 13:22:10 EDT
tftp 0.38 will be in RHEL4b1 (and FC3t2) so the issue will definitely
be resolved in the future. I don't know about doing a RHEL3 erratum -
will see how high it gets on the TODO stack :)
Comment 4 Kevin W. Rudd 2004-09-20 13:25:15 EDT
The reference to the fix in 0.37 was due to a mis-diagnosis.  The
problem that they are encountering is a high total transfer time due
to excessive Socerer's Apprentice Syndrom related packets.  The
following is a small segment from one of their transfers:

No.  Time      Source          Destination     Info
 1  0.000000  Acknowledgement, Block:
 2  0.000042  Data Packet, Block: 897   
 3  0.000222  Acknowledgement, Block:
 4  0.000234  Data Packet, Block: 897   
 5  0.000447  Acknowledgement, Block:
 6  0.000460  Data Packet, Block: 897   
 7  0.000642  Acknowledgement, Block:
 8  0.000655  Data Packet, Block: 898   
 9  0.000978  Acknowledgement, Block:
10  0.000991  Data Packet, Block: 898   
11  0.002183  Acknowledgement, Block:
12  0.002196  Data Packet, Block: 898   
13  0.002415  Acknowledgement, Block:
14  0.002427  Data Packet, Block: 898   
15  0.002634  Acknowledgement, Block:
16  0.002647  Data Packet, Block: 898   
17  0.002827  Acknowledgement, Block:
18  0.002840  Data Packet, Block: 899    

The tftp-0.28-malta.patch being applied to the RHEL3 RPM violates the
RFC specifications and is causing this behavior. Intentionally
breaking the default behavior should be enabled via an optional flag
(if it is left in at all).
Comment 5 H. Peter Anvin 2004-09-21 14:26:20 EDT
Please do NOT ship 0.38.  It has a serious timeout bug that can cause
the server to go into a packet-spew mode.  This bug has been fixed in
Comment 6 Elliot Lee 2004-09-21 14:38:51 EDT
0.39 is in FC3 devel tree now, sans the malta patch.
Comment 7 nathan r. hruby 2004-09-23 08:08:13 EDT
PING.  Any possibility of this happening in RHEL3?  Some of us have cable modems to boot 
ya know :)
Comment 10 Joshua Jensen 2004-10-11 11:47:35 EDT
I'm hoping for an update *before* U4... there are a boatload of Cisco
routers running IOS version 12.2 that don't work with what Red Hat is
shipping today :-(
Comment 11 Joshua Jensen 2004-10-19 09:18:03 EDT
A response of "no" is better than a response of "..."

Comment 12 nathan r. hruby 2004-10-19 09:25:37 EDT
Hmm probably that was the alias getting added.  This bug is now also a 
blocker for something else, possibly (hopefully) an internal UPD4
tracking bug?

I'm guessing this is prep for the UPD4 beta spin, we're about due.

FWIW Red hat typically doesn't do version bumps between the quarterly
releases.  Some nonsense about QA I think...

Comment 13 Radek Vokal 2004-10-19 09:29:21 EDT
It will be the part of RHEL3-U4 and it won't come out earlier. I'm
sorry for your problems but it has to go through QA as it's version
"bump" as Nathan mentioned. 
Comment 14 nathan r. hruby 2004-10-19 09:43:32 EDT
Thanks for the update!  The new version is muchly welcomed.
Comment 15 John Flanagan 2004-12-21 10:34:07 EST
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.


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