Bug 16232

Summary: 2.6.35-rc3 - WARNING:iwl_set_dynamic_key
Product: Drivers Reporter: Maciej Rutecki (maciej.rutecki)
Component: network-wirelessAssignee: Reinette Chatre (reinette.chatre)
Status: CLOSED CODE_FIX    
Severity: normal CC: linville, maciej.rutecki, mario.guenterberg, reinette.chatre, rjw
Priority: P1    
Hardware: All   
OS: Linux   
Kernel Version: 2.6.35-rc3 Tree: Mainline
Regression: Yes
Bug Depends on:    
Bug Blocks: 16055    
Attachments: Remove key information during device restart

Description Maciej Rutecki 2010-06-16 20:11:49 UTC
Subject    : 2.6.35-rc3 - WARNING:iwl_set_dynamic_key
Submitter  : Mario Guenterberg <mario.guenterberg@googlemail.com>
Date       : 2010-06-14 11:55
Message-ID : 20100614115510.GA7904@guenti-laptop
References : http://marc.info/?l=linux-kernel&m=127651695627147&w=2

This entry is being used for tracking a regression from 2.6.34.  Please don't
close it until the problem is fixed in the mainline.
Comment 1 Reinette Chatre 2010-06-16 20:31:13 UTC
How sporadic are these errors? Do you think you can easily reproduce? Any hints on how I can reproduce here?

Please ensure driver is compiled with debug support (CONFIG_IWLWIFI_DEBUG) and then load driver with "modprobe iwlagn debug=0x443fff" - you may have to redirect it all to syslog if it takes some time to reproduce.
Comment 2 Reinette Chatre 2010-06-16 22:21:44 UTC
Created attachment 26818 [details]
Remove key information during device restart

One scenario in which this can occur is when there are a few device restarts. have you been seeing those? Could you please try this patch?
Comment 3 Mario Guenterberg 2010-06-17 06:42:27 UTC
I will try the patch later this day. The device may be restarting sometimes, yes. The problem occurs intensified at the end of a long session on my laptop, 12 -14 hours. My notebook stands still at this time, I've worked at my office table all the time. I noticed that NetworkManager reconnected from time to time with the wireless network.
Comment 4 Mario Guenterberg 2010-06-21 21:29:21 UTC
I've applied the patch and build a new kernel with it. I have a new long working session tomorrow. I will see wether it help.
Comment 5 Mario Guenterberg 2010-06-23 23:47:42 UTC
I had yesterday no problems with the network device, anyway not this issue related. Works fine.
Comment 6 Reinette Chatre 2010-07-02 20:58:01 UTC
Patch has been submitted for inclusion into linux-2.6 http://article.gmane.org/gmane.linux.kernel.wireless.general/52893
Comment 7 Rafael J. Wysocki 2010-07-08 22:45:48 UTC
Handled-By : Reinette Chatre <reinette.chatre@intel.com>
Patch : http://article.gmane.org/gmane.linux.kernel.wireless.general/52893
Comment 8 Rafael J. Wysocki 2010-07-23 11:26:46 UTC
Fixed by commit e4c064728ca358622918fa69ab2bb05f5a2090a8 .