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Bug 451282 - iwl4965 driver causes kernel panic with Intel 4965AGN wireless
Summary: iwl4965 driver causes kernel panic with Intel 4965AGN wireless
Alias: None
Product: Fedora
Classification: Fedora
Component: kernel
Version: 9
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: John W. Linville
QA Contact: Fedora Extras Quality Assurance
Depends On:
TreeView+ depends on / blocked
Reported: 2008-06-13 17:45 UTC by Yuta Kitamura
Modified: 2008-06-13 23:43 UTC (History)
3 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2008-06-13 20:29:41 UTC

Attachments (Terms of Use)
Kernel panic log (deleted)
2008-06-13 17:46 UTC, Yuta Kitamura
no flags Details
dmesg information (deleted)
2008-06-13 17:48 UTC, Yuta Kitamura
no flags Details

Description Yuta Kitamura 2008-06-13 17:45:21 UTC
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9b5) Gecko/2008043010 Fedora/3.0-0.60.beta5.fc9 Firefox/3.0b5

Description of problem:
I'm using Panasonic CF-Y7 laptop which has Intel Wireless WiFi Link 4965 AGN wireless LAN card.
Since the update of the new Fedora kernel (kernel-,
the iwl4965 driver causes a kernel panic on wireless network activation (by using NetworkManager) and the system freezes completely.

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

How reproducible:

Steps to Reproduce:
1. Start a wireless network by NetworkManager.

Actual Results:
The system became frozen by a kernel panic.

Expected Results:
The wireless network should have been successfully started.

Additional info:
Before the update of new kernel (i.e. kernel- and before),
the wireless LAN worked fine.

Comment 1 Yuta Kitamura 2008-06-13 17:46:46 UTC
Created attachment 309264 [details]
Kernel panic log

The kernel panic log of this problem.

Comment 2 Yuta Kitamura 2008-06-13 17:48:44 UTC
Created attachment 309265 [details]
dmesg information

dmesg log of my system.

Comment 3 John W. Linville 2008-06-13 18:19:25 UTC
Does this happen every time?  Are you able to use the device for any time before
the crash?

Can you replicate the issue with the kernels here?

Comment 4 Yuta Kitamura 2008-06-13 19:01:51 UTC
(In reply to comment #3)
> Does this happen every time?  Are you able to use the device for any time before
> the crash?
> Can you replicate the issue with the kernels here?

This problem happens every time when I start a wireless network.
The system freezes after a wireless network is established by NetworkManager,
i.e. immediately after two green lamps get turned on.
Without starting a wireless network, the system seems to work fine
(but it will be started automatically when I use the laptop around the wireless
network registered to NetworkManager).

The problem does not seem to happen with the kernel shown above.
(Is this problem already fixed?)

Comment 5 John W. Linville 2008-06-13 20:29:41 UTC
It seems so...I think we are trying to get a new kernel through the normal
release process quickly.

Comment 6 Martin Ebourne 2008-06-13 20:41:19 UTC
I'm seeing the same issue on a HP 8510w also using iwl4965. Hard freeze just
after X started, which would correspond to NM bringing the network up.

Started with kernel- (-30 was fine) and is already fixed
with kernel-

Comment 7 Todd Savoie 2008-06-13 23:43:27 UTC
The kernel- has resolve the same issue on my Compaq F730US
with a BCM94311MCG (b43)

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