I've seen in a post from January that someone already had this problem
but couldn't reproduce it.
I can't reliably reproduce, but I see this more often than I like.
When this happens, it usually doesn't help to reload the kernel
module. Sometimes it helps to use the rfkill switch though.
Here's a log with debug=0x43fff:
Feb 6 21:32:20 tank kernel: [11142.667719] iwlagn 0000:0c:00.0:
Microcode SW error detected. Restarting 0x2000000.
Feb 6 21:32:20 tank kernel: [11142.725640] Registered led device:
iwl-phy0::radio
Feb 6 21:32:20 tank kernel: [11142.725789] Registered led device:
iwl-phy0::assoc
Feb 6 21:32:20 tank kernel: [11142.725840] Registered led device:
iwl-phy0::RX
Feb 6 21:32:20 tank kernel: [11142.725876] Registered led device:
iwl-phy0::TX
That's unfortunately not more than without debug.
Here are follow-up retries from the module to restart itself:
Feb 6 21:38:31 tank kernel: [11514.361232] wlan0: deauthenticated (Reason: 2)
Feb 6 21:38:31 tank kernel: [11514.361257] HW problem - can not stop
rx aggregation for tid 0
Feb 6 21:38:31 tank kernel: [11514.372228] mac80211-phy0: failed to
remove key(0, ffff8800d9100b40) from hardware (-22)
Feb 6 21:38:32 tank kernel: [11515.360263] wlan0: direct probe to AP
ffff880119882a20 try 1
Feb 6 21:38:32 tank kernel: [11515.362305] wlan0 direct probe responded
Feb 6 21:38:32 tank kernel: [11515.362315] wlan0: authenticate with
AP ffff880119882a20
Feb 6 21:38:32 tank kernel: [11515.364878] wlan0: authenticated
Feb 6 21:38:32 tank kernel: [11515.364885] wlan0: associate with AP
ffff880119882a20
Feb 6 21:38:32 tank kernel: [11515.368128] wlan0: RX ReassocResp from
ffff8800cac28016 (capab=0x431 status=0 aid=1)
Feb 6 21:38:32 tank kernel: [11515.368137] wlan0: associated
Feb 6 21:38:34 tank kernel: [11517.377006] iwlagn 0000:0c:00.0:
Microcode SW error detected. Restarting 0x2000000.
Feb 6 21:38:34 tank kernel: [11517.421241] Registered led device:
iwl-phy0::radio
Feb 6 21:38:34 tank kernel: [11517.421711] Registered led device:
iwl-phy0::assoc
Feb 6 21:38:34 tank kernel: [11517.422034] Registered led device:
iwl-phy0::RX
Feb 6 21:38:34 tank kernel: [11517.422336] Registered led device:
iwl-phy0::TX
Feb 6 21:48:31 tank kernel: [12114.362612] wlan0: deauthenticated (Reason: 2)
Feb 6 21:48:31 tank kernel: [12114.362636] HW problem - can not stop
rx aggregation for tid 0
Feb 6 21:48:31 tank kernel: [12114.381137] mac80211-phy0: failed to
remove key(0, ffff88002e06a740) from hardware (-22)
Feb 6 21:48:32 tank kernel: [12115.360108] wlan0: direct probe to AP
ffff880119882a20 try 1
Feb 6 21:48:32 tank kernel: [12115.361948] wlan0 direct probe responded
Feb 6 21:48:32 tank kernel: [12115.361957] wlan0: authenticate with
AP ffff880119882a20
Feb 6 21:48:32 tank kernel: [12115.372072] wlan0: authenticated
Feb 6 21:48:32 tank kernel: [12115.372082] wlan0: associate with AP
ffff880119882a20
Feb 6 21:48:32 tank kernel: [12115.375111] wlan0: RX ReassocResp from
ffff8800bfb0c016 (capab=0x431 status=0 aid=1)
Feb 6 21:48:32 tank kernel: [12115.375123] wlan0: associated
Feb 6 21:48:34 tank kernel: [12116.976224] iwlagn 0000:0c:00.0:
Microcode SW error detected. Restarting 0x2000000.
Feb 6 21:48:34 tank kernel: [12117.025630] Registered led device:
iwl-phy0::radio
Feb 6 21:48:34 tank kernel: [12117.027965] Registered led device:
iwl-phy0::assoc
Feb 6 21:48:34 tank kernel: [12117.030202] Registered led device:
iwl-phy0::RX
Feb 6 21:48:34 tank kernel: [12117.032351] Registered led device:
iwl-phy0::TX
This happens every 10 minutes.
Jan.
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