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Bug 789719

Summary: When the -timeout option is less than or equal to 3, dhclient will stuck in a infinite loop doing DHCP Discover
Product: Red Hat Enterprise Linux 6 Reporter: hydra35 <clanherb>
Component: dhcpAssignee: Jiri Popelka <jpopelka>
Status: CLOSED ERRATA QA Contact: Release Test Team <release-test-team-automation>
Severity: medium Docs Contact:
Priority: medium    
Version: 6.2CC: ljozsa, mganisin, ovasik
Target Milestone: rcKeywords: Patch
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: dhcp-4.1.1-28.P1.el6 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2012-06-20 12:43:51 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:

Description hydra35 2012-02-12 15:27:26 UTC
Description of problem:

the -timeout option specifies how many seconds will dhclient goes to background when there is no valid dhcp response.

When assigned a value less than or equal to 3 seconds, dhclient will stuck in a infinite loop doing DHCP Discover. This situation can be reproduced no matter there is valid response from server-side.


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

1. dhcp-4.1.1-25.P1_2.1(the default package comes with 6.2)
2. dhcp-4.1.1-25.P1.el6_2.1(the newest package) can be obtained via `yum update`

How reproducible: Always

Steps to Reproduce:
1. setup a dhcp server
2. run `dhclient -timeout 3 -d eth0
3. Observer the infinite loop between dhclient and dhcp server.
  
Actual results:


Expected results:


Additional info:

Comment 2 Jiri Popelka 2012-02-13 17:54:56 UTC
Thanks for the report. Problem has been in one of our patches.

Comment 6 Ladislav Jozsa 2012-04-25 12:03:23 UTC
Verified on RHEL6.3-20120416.0, dhclient-4.1.1-30.P1.el6.

Erroneous behaviour described in the opening comment is fixed.

Comment 8 errata-xmlrpc 2012-06-20 12:43:51 UTC
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHBA-2012-0793.html