Bug 495003 - kernels after cause lockup with intel wireless
kernels after cause lockup with intel wireless
Product: Fedora
Classification: Fedora
Component: kernel (Show other bugs)
All Linux
low Severity medium
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Assigned To: John W. Linville
Fedora Extras Quality Assurance
: 494815 495223 (view as bug list)
Depends On:
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Reported: 2009-04-08 22:14 EDT by Kevin Fenzi
Modified: 2009-05-12 14:20 EDT (History)
7 users (show)

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Fixed In Version:
Doc Type: Bug Fix
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Last Closed: 2009-05-12 14:20:51 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description Kevin Fenzi 2009-04-08 22:14:18 EDT
kernel boots and runs normally here. 


All fail in this same way: 

Boot up is normal. X comes up fine. I login. 
Everything starts loading. 
NetworkManager loads and starts trying to connect to my wireless network. 
Machine hard locks. No answer from any keys. ;( 

I do have an intel 3945 wireless here, so I wonder if: 

* Thu Apr 02 2009 John W. Linville <linville@redhat.com>
- iwl3945: rely on priv->lock to protect priv access

* Thu Apr 02 2009 John W. Linville <linville@redhat.com>
- back-port iwlwifi rfkill while device down patches

Could be causing it? 

Happy to provide more info or try any tests.
Comment 1 John W. Linville 2009-04-09 11:10:14 EDT
Just to be sure, could you try each of the following kernels?



Do both of them fail similarly to -46.fc11 and after?  Or perhaps just the second one?
Comment 2 Kevin Fenzi 2009-04-09 11:17:54 EDT
The first of those seems to be a canceled task?

I can try the second one later this morning.
Comment 3 John W. Linville 2009-04-09 11:24:17 EDT
Ah yes, sorry...I forgot that I cancelled that build when I added the priv->lock patch...
Comment 4 Kevin Fenzi 2009-04-09 13:45:23 EDT
ok, the kernel- kernel also locks up here. 

It locked up in a slightly different way. The others totally locked, this one I could still watch my gkrellm update and see that something was taking 100% cpu, but couldn't use the mouse/keyboard at all. 

Happy to try further testing.
Comment 5 John W. Linville 2009-04-09 14:07:28 EDT
Cool, thanks...first let's try dropping both of those patches:


Please give those kernels a try when the build completes...thanks!
Comment 6 Kevin Fenzi 2009-04-09 15:34:19 EDT boots and runs normally. 
wireless comes up, no lockup.
Comment 7 John W. Linville 2009-04-13 10:11:04 EDT
*** Bug 494815 has been marked as a duplicate of this bug. ***
Comment 8 John W. Linville 2009-04-13 10:16:35 EDT
Looks like lots of people are hitting this on iwl3945.  Not sure if that is
what you have, but on a hunch I did a version that only removes the iwl3945
priv->lock patch.  Would you mind trying this version (when the build

Comment 9 John W. Linville 2009-04-13 10:50:18 EDT
*** Bug 495223 has been marked as a duplicate of this bug. ***
Comment 10 Kevin Fenzi 2009-04-13 12:26:13 EDT
The kernel from comment #8 works fine here so far. ;)
Comment 11 John W. Linville 2009-04-13 13:13:31 EDT
Cool, thanks!
Comment 12 Nigel Jones 2009-04-13 16:45:46 EDT
Special kernel seems to work fine here too after reverting to the "bad" AP configuration... great.
Comment 13 Nigel Jones 2009-04-16 01:55:52 EDT
Appeared to get hang with -70 kernel. Didn't debug but downloaded -85 from koji which works fine with the "bad" AP.

Possibly unrelated, but latest kernel seems good for this problem. Thx.

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