Bug 497522 - iwlagn unresponsive and cpu hog
iwlagn unresponsive and cpu hog
Status: CLOSED INSUFFICIENT_DATA
Product: Fedora
Classification: Fedora
Component: kernel (Show other bugs)
10
All Linux
low Severity medium
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Assigned To: John W. Linville
Fedora Extras Quality Assurance
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Depends On:
Blocks:
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Reported: 2009-04-24 08:57 EDT by Jean-Philippe Dionne
Modified: 2009-06-11 10:57 EDT (History)
3 users (show)

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Doc Type: Bug Fix
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Last Closed: 2009-06-11 10:57:38 EDT
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Description Jean-Philippe Dionne 2009-04-24 08:57:54 EDT
Description of problem:

After a fresh boot or a return from suspend, iwlagn consume all the cpu and continuously logs the following messages 

Apr 24 08:11:13 jpdionne kernel: iwlagn: Microcode SW error detected.  Restarting 0x82000000.
Apr 24 08:11:13 jpdionne kernel: iwlagn: Error setting new RXON (-5)
Apr 24 08:11:16 jpdionne kernel: Registered led device: iwl-phy0:radio
Apr 24 08:11:16 jpdionne kernel: Registered led device: iwl-phy0:assoc
Apr 24 08:11:16 jpdionne kernel: Registered led device: iwl-phy0:RX
Apr 24 08:11:16 jpdionne kernel: Registered led device: iwl-phy0:TX

Reloading the iwlagn module will fix the problem.

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

Kernel: 2.6.27.21-170.2.56.fc10.x86_64
Wireless card: Intel Corporation Wireless WiFi Link 5100

How reproducible:

The problem is not 100% reproductible.  I have seen it happened on two kind of wireless networks: 802.11b unencrypted and 802.11n WPA .

Steps to Reproduce:
1. Return from suspend
2. When the NetworkManager will start the network scan, the computer will become unresponsive.
Comment 1 John W. Linville 2009-04-24 10:12:44 EDT
Can you reproduce this on a 2.6.29-based kernel?

   yum --enablerepo=updates-test update kernel
Comment 2 John W. Linville 2009-06-11 10:57:38 EDT
Closed due to lack of response...

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