Bug 234144 - iwlwifi messages: long/short preample handling
iwlwifi messages: long/short preample handling
Status: CLOSED RAWHIDE
Product: Fedora
Classification: Fedora
Component: kernel (Show other bugs)
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All Linux
medium Severity medium
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Assigned To: John W. Linville
Brian Brock
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Depends On:
Blocks: 237760
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Reported: 2007-03-27 10:09 EDT by Tom London
Modified: 2007-11-30 17:12 EST (History)
2 users (show)

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Fixed In Version:
Doc Type: Bug Fix
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Clone Of:
Environment:
Last Closed: 2007-05-17 14:03:40 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description Tom London 2007-03-27 10:09:37 EDT
Description of problem:
Get lots of the following messages when wifi is 'turned on' (ipw3945 on thinkpad
X60):

Mar 27 06:57:24 localhost kernel: iwlwifi: XXXY start rate scale
Mar 27 06:57:32 localhost NetworkManager: <info>  wlan0: Device is
fully-supported using driver 'iwlwifi'. 
Mar 27 06:57:32 localhost kernel: iwlwifi: TODO: Look into long/short preamble
change handling.
Mar 27 06:57:32 localhost kernel: iwlwifi: TODO: Look into long/short preamble
change handling.
Mar 27 06:57:32 localhost kernel: iwlwifi: TODO: Look into long/short preamble
change handling.


Version-Release number of selected component (if applicable):
kernel-PAE-2.6.20-1.3023.fc7

How reproducible:
every time

Steps to Reproduce:
1.
2.
3.
  
Actual results:


Expected results:


Additional info:
Comment 1 Tom London 2007-04-01 22:02:47 EDT
This problem continues wit .3038.

Any useful info I can provide?
Comment 2 Dave Jones 2007-04-04 01:05:58 EDT
yes, this one is particularly easy to trigger it seems.
John, shall we just disable that particular IPW_WARNING for now?
Comment 3 Bryan O'Sullivan 2007-04-12 02:55:55 EDT
FWIW, in at least some cases, the warning seems to be strongly correlated with
actual problems, for example association flapping with WEP (see bug 235247).
Comment 4 John W. Linville 2007-04-12 09:14:51 EDT
FWIW, iwlwifi had IPW_WARNING set to use KERN_ERR (which IPW_ERROR uses) 
instead of KERN_WARNING.  I put a patch in rawhide (kernel 3057) to correct 
that apparent typo.  Does this quiet things down a bit?
Comment 5 Tom London 2007-04-12 09:40:05 EDT
I downloaded/installed .3059 this morning.

No change, noisy as ever.  Same frequent error messages.  

Here are some falling right in the middle of WEP authentication dance....

Apr 12 06:34:13  localhost wpa_supplicant[3577]: Trying to associate with
00:12:17:46:42:51 (SSID='free4all' freq=2457 MHz) 
Apr 12 06:34:13  localhost wpa_supplicant[3577]: Association request to the
driver failed 
Apr 12 06:34:13  localhost kernel: hwcrypto disabled!
Apr 12 06:34:13  localhost kernel: iwlwifi: TODO: Look into long/short preamble
change handling.
Apr 12 06:34:13  localhost kernel: iwlwifi: Network RSSI: -39
Apr 12 06:34:13  localhost kernel: iwlwifi: REPLY_ADD_STA failed
Apr 12 06:34:13  localhost kernel: iwlwifi: Network RSSI: -39
Apr 12 06:34:13  localhost kernel: iwlwifi: REPLY_ADD_STA failed
Apr 12 06:34:13  localhost kernel: iwlwifi: Network RSSI: -40
Apr 12 06:34:15  localhost NetworkManager: <info>  Old device 'eth0' activating,
won't change. 
Apr 12 06:34:28  localhost wpa_supplicant[3577]: Authentication with
00:00:00:00:00:00 timed out. 
Apr 12 06:34:28  localhost kernel: iwlwifi: TODO: Look into long/short preamble
change handling.
Comment 6 John W. Linville 2007-04-25 14:47:54 EDT
Tom, I think the "iwlwifi: REPLY_ADD_STA failed" messages should be handled in 
bug 235247.
Comment 7 John W. Linville 2007-05-17 14:03:40 EDT
The "long/short preamble" message is no longer in the sources...

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