Bug 796837

Summary: NetworkManager will constantly switch LAN connection on and off
Product: [Fedora] Fedora Reporter: Ivo Sarak <ivo>
Component: NetworkManagerAssignee: Dan Williams <dcbw>
Status: CLOSED CURRENTRELEASE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: urgent Docs Contact:
Priority: unspecified    
Version: rawhideCC: dcbw, jklimes, mgahagan, mschmidt, nicolas.mailhot, psimerda
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2012-03-21 08:16:09 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:
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Description Flags
some /var/log/messages log none

Description Ivo Sarak 2012-02-23 18:20:25 UTC
Description of problem:

As soon as system will start up and NetworkManager will kick in, there will be periodic LAN connection loss and gain (with period about 3 seconds).

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

NetworkManager-0.9.3-0.2.git20120215.fc17.x86_64
kernel 3.3.0-0.rc3.git2.2.fc18.x86_64

How reproducible:

Always.

Steps to Reproduce:
1. Start NetworkManager.
  
Actual results:

LAN connection will start to go on and off.

Expected results:

Configured LAN connection and no constant switching it on and off.

Additional info:

Base Board Information
        Manufacturer: ASRock
        Product Name: A75M-HVS
BIOS Information
        Vendor: American Megatrends Inc.
        Version: P1.60
        Release Date: 10/28/2011
CPU: AMD A6-3500 APU with Radeon(tm) HD Graphics

01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 06)
02:05.0 Ethernet controller: Intel Corporation 82541PI Gigabit Ethernet Controller (rev 05)

Tested with onboard LAN and with a PCI-E board, results are the same.

Comment 1 Ivo Sarak 2012-02-23 18:39:03 UTC
Likely related https://bugzilla.redhat.com/show_bug.cgi?id=796849

Comment 2 Michal Schmidt 2012-02-23 19:38:07 UTC
Does anything appear in dmesg when the connection is flipping? Or /var/log/messages?

Comment 3 Ivo Sarak 2012-02-23 23:45:58 UTC
Created attachment 565416 [details]
some /var/log/messages log

Each time there is that connection flipping the /var/log/messages has several messages added.

Comment 4 Pavel Šimerda (pavlix) 2012-03-20 20:35:55 UTC
I've seen this behaviour but AFAIK it disappeared. But it didn't happen to me always, so I'm not 100% sure.

Please test NetworkManager-0.9.3.997-0.7.fc17 from
updates-testing repository.

Comment 5 Jirka Klimes 2012-03-21 08:16:09 UTC
Yeah, it's been fixed in recent updates.
http://koji.fedoraproject.org/koji/buildinfo?buildID=308207

Feel free to reopen if you encounter problems.

Comment 6 Jirka Klimes 2012-03-21 08:18:08 UTC
*** Bug 796897 has been marked as a duplicate of this bug. ***

Comment 7 Jirka Klimes 2012-03-21 08:26:42 UTC
*** Bug 785346 has been marked as a duplicate of this bug. ***