Red Hat Bugzilla – Bug 234144
iwlwifi messages: long/short preample handling
Last modified: 2007-11-30 17:12:00 EST
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:
This problem continues wit .3038. Any useful info I can provide?
yes, this one is particularly easy to trigger it seems. John, shall we just disable that particular IPW_WARNING for now?
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).
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?
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.
Tom, I think the "iwlwifi: REPLY_ADD_STA failed" messages should be handled in bug 235247.
The "long/short preamble" message is no longer in the sources...