Message-ID: <0BA3FCBA62E2DC44AF3030971E174FB306318C@HASMSX103.ger.corp.intel.com>
Date:	Wed, 11 Jan 2012 05:31:17 +0000
From:	"Grumbach, Emmanuel" <emmanuel.grumbach@...el.com>
To:	Dave Jones <davej@...hat.com>
CC:	Dan Williams <dcbw@...hat.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"Guy, Wey-Yi W" <wey-yi.w.guy@...el.com>,
	Linux Wireless <linux-wireless@...r.kernel.org>
Subject: RE: iwlwifi worse than ever in current git.

> From boot to first hang..
> 
> [   24.874236] Intel(R) Wireless WiFi Link AGN driver for Linux, in-tree:d
> [   24.875980] Copyright(c) 2003-2011 Intel Corporation
> [   24.877877] iwlwifi 0000:04:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ
> 17
> [   24.879733] iwlwifi 0000:04:00.0: setting latency timer to 64
> [   24.879847] iwlwifi 0000:04:00.0: pci_resource_len = 0x00002000
> [   24.881528] iwlwifi 0000:04:00.0: pci_resource_base = ffffc9001155c000
> [   24.883276] iwlwifi 0000:04:00.0: HW Revision ID = 0x0
> [   24.885297] iwlwifi 0000:04:00.0: irq 46 for MSI/MSI-X
> [   24.885766] iwlwifi 0000:04:00.0: CONFIG_IWLWIFI_DEBUG enabled
> [   24.887414] iwlwifi 0000:04:00.0: CONFIG_IWLWIFI_DEBUGFS enabled
> [   24.889060] iwlwifi 0000:04:00.0: CONFIG_IWLWIFI_DEVICE_TRACING enabled
> [   24.890740] iwlwifi 0000:04:00.0: CONFIG_IWLWIFI_DEVICE_TESTMODE enabled
> [   24.892371] iwlwifi 0000:04:00.0: CONFIG_IWLWIFI_P2P disabled
> [   24.893963] iwlwifi 0000:04:00.0: Detected Intel(R) Ultimate N WiFi Link
> 5300 AGN, REV=0x24
> [   24.896234] iwlwifi 0000:04:00.0: L1 Enabled; Disabling L0S
> [   24.919869] iwlwifi 0000:04:00.0: device EEPROM VER=0x120, CALIB=0x4
> [   24.921403] iwlwifi 0000:04:00.0: Device SKU: 0xF0
> [   24.922924] iwlwifi 0000:04:00.0: Tunable channels: 13 802.11bg, 24 802.11a
> channels
> [   24.943679] iwlwifi 0000:04:00.0: loaded firmware version 8.83.5.1 build
> 33692
> [   24.946313] Registered led device: phy0-led
> [   24.978763] ieee80211 phy0: Selected rate control algorithm 'iwl-agn-rs'
> [   25.032235] cfg80211: Calling CRDA for country: US
> [   25.083063] cfg80211: Regulatory domain changed to country: US
> [   25.084776] cfg80211:   (start_freq - end_freq @ bandwidth),
> (max_antenna_gain, max_eirp)
> [   25.086556] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi,
> 2700 mBm)
> [   25.088280] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi,
> 1700 mBm)
> [   25.089954] cfg80211:   (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi,
> 2000 mBm)
> [   25.091618] cfg80211:   (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi,
> 2000 mBm)
> [   25.093234] cfg80211:   (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi,
> 2000 mBm)
> [   25.095115] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi,
> 3000 mBm)
> 
> [   36.649871] iwlwifi 0000:04:00.0: L1 Enabled; Disabling L0S
> [   36.662470] iwlwifi 0000:04:00.0: Radio type=0x0-0x2-0x0
> [   36.825012] iwlwifi 0000:04:00.0: U iwl_trans_set_wr_ptrs Q 4  WrPtr: 0
> [   36.825012] iwlwifi 0000:04:00.0: U iwl_trans_tx_queue_set_status Activate
> AC/CMD Queue 0 on FIFO 3
> [   36.830829] iwlwifi 0000:04:00.0: U iwl_trans_tx_queue_set_status Activate
> AC/CMD Queue 1 on FIFO 2
> [   36.830829] iwlwifi 0000:04:00.0: U iwl_trans_tx_queue_set_status Activate
> AC/CMD Queue 2 on FIFO 1
> [   36.830829] iwlwifi 0000:04:00.0: U iwl_trans_tx_queue_set_status Activate
> AC/CMD Queue 3 on FIFO 0
> [   36.830829] iwlwifi 0000:04:00.0: U iwl_trans_tx_queue_set_status Activate
> AC/CMD Queue 4 on FIFO 7
> [   37.023008] iwlwifi 0000:04:00.0: L1 Enabled; Disabling L0S
> [   37.033727] iwlwifi 0000:04:00.0: Radio type=0x0-0x2-0x0
> [   37.215009] iwlwifi 0000:04:00.0: U iwl_trans_set_wr_ptrs Q 4  WrPtr: 0
> [   37.215009] iwlwifi 0000:04:00.0: U iwl_trans_tx_queue_set_status Activate
> AC/CMD Queue 0 on FIFO 3
> [   37.215009] iwlwifi 0000:04:00.0: U iwl_trans_tx_queue_set_status Activate
> AC/CMD Queue 1 on FIFO 2
> [   37.215009] iwlwifi 0000:04:00.0: U iwl_trans_tx_queue_set_status Activate
> AC/CMD Queue 2 on FIFO 1
> [   37.222439] iwlwifi 0000:04:00.0: U iwl_trans_tx_queue_set_status Activate
> AC/CMD Queue 3 on FIFO 0
> [   37.222439] iwlwifi 0000:04:00.0: U iwl_trans_tx_queue_set_status Activate
> AC/CMD Queue 4 on FIFO 7
> [   37.321187] ADDRCONF(NETDEV_UP): wlan0: link is not ready
> [   44.614100] wlan0: authenticate with b8:c7:5d:0c:39:88 (try 1)
> [   44.815110] wlan0: authenticate with b8:c7:5d:0c:39:88 (try 2)
> [   44.817695] wlan0: authenticated
> [   44.839289] wlan0: associate with b8:c7:5d:0c:39:88 (try 1)
> [   44.842270] wlan0: RX AssocResp from b8:c7:5d:0c:39:88 (capab=0x511
> status=0 aid=3)
> [   44.842270] wlan0: associated
> [   44.842270] wlan0: moving STA b8:c7:5d:0c:39:88 to state 1
> [   44.842270] wlan0: moving STA b8:c7:5d:0c:39:88 to state 2
> [   44.862870] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
> [   44.866222] cfg80211: Calling CRDA for country: US
> [   44.869918] iwlwifi 0000:04:00.0: I iwl_stop_queue Stop hwq 0 ac 0 stop
> count 1. Tx on passive channel
> [   44.904744] cfg80211: Regulatory domain changed to country: US
> [   44.905049] cfg80211:   (start_freq - end_freq @ bandwidth),
> (max_antenna_gain, max_eirp)
> [   44.905435] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi,
> 2700 mBm)
> [   44.905788] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi,
> 1700 mBm)
> [   44.906167] cfg80211:   (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi,
> 2000 mBm)
> [   44.906524] cfg80211:   (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi,
> 2000 mBm)
> [   44.906879] cfg80211:   (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi,
> 2000 mBm)
> [   44.907312] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi,
> 3000 mBm)
> [   44.937401] iwlwifi 0000:04:00.0: I iwl_trans_pcie_wake_any_queue Queue
> Status: Q[0] stopped
> [   44.937789] iwlwifi 0000:04:00.0: I iwl_wake_queue Wake hwq 0 ac 0. channel
> got active
> [   44.938089] iwlwifi 0000:04:00.0: I iwl_trans_pcie_wake_any_queue Queue
> Status: Q[1] awake
> [   44.938089] iwlwifi 0000:04:00.0: I iwl_trans_pcie_wake_any_queue Queue
> Status: Q[2] awake
> [   44.938089] iwlwifi 0000:04:00.0: I iwl_trans_pcie_wake_any_queue Queue
> Status: Q[3] awake
> [   45.891438] wlan0: moving STA b8:c7:5d:0c:39:88 to state 3
> [   56.018088] wlan0: no IPv6 routers present
> [   97.157673] iwlwifi 0000:04:00.0: U iwlagn_tx_agg_start Can proceed: ssn =
> next_recl = 137
> [   97.159663] iwlwifi 0000:04:00.0: U iwl_trans_set_wr_ptrs Q 11  WrPtr: 137
> [   97.159932] iwlwifi 0000:04:00.0: U iwl_trans_tx_queue_set_status Activate
> BA Queue 11 on FIFO 1
> [   97.160516] iwlwifi 0000:04:00.0: Tx aggregation enabled on ra =
> b8:c7:5d:0c:39:88 tid = 0
> [  111.136741] iwlwifi 0000:04:00.0: U iwlagn_tx_agg_stop Can proceed: ssn =
> next_recl = 194
> [  111.137162] iwlwifi 0000:04:00.0: U iwl_trans_set_wr_ptrs Q 11  WrPtr: 0
> [  111.137531] iwlwifi 0000:04:00.0: U iwl_trans_tx_queue_set_status
> Deactivate AC/CMD Queue 11 on FIFO 0
> 
> [  147.455293] iwlwifi 0000:04:00.0: U iwlagn_tx_agg_start Can proceed: ssn =
> next_recl = 264
> [  147.456993] iwlwifi 0000:04:00.0: U iwl_trans_set_wr_ptrs Q 11  WrPtr: 8
> [  147.457027] iwlwifi 0000:04:00.0: U iwl_trans_tx_queue_set_status Activate
> BA Queue 11 on FIFO 1
> [  147.457830] iwlwifi 0000:04:00.0: Tx aggregation enabled on ra =
> b8:c7:5d:0c:39:88 tid = 0
> [  164.513842] iwlwifi 0000:04:00.0: U iwlagn_tx_agg_stop Can proceed: ssn =
> next_recl = 816
> [  164.514282] iwlwifi 0000:04:00.0: U iwl_trans_set_wr_ptrs Q 11  WrPtr: 0
> [  164.514664] iwlwifi 0000:04:00.0: U iwl_trans_tx_queue_set_status
> Deactivate AC/CMD Queue 11 on FIFO 0
> [  173.145695] iwlwifi 0000:04:00.0: U iwlagn_tx_agg_start Can proceed: ssn =
> next_recl = 869
> [  173.147133] iwlwifi 0000:04:00.0: U iwl_trans_set_wr_ptrs Q 11  WrPtr: 101
> [  173.147545] iwlwifi 0000:04:00.0: U iwl_trans_tx_queue_set_status Activate
> BA Queue 11 on FIFO 1
> [  173.148050] iwlwifi 0000:04:00.0: Tx aggregation enabled on ra =
> b8:c7:5d:0c:39:88 tid = 0
> [  192.805102] wlan0: authenticate with b8:c7:5d:0c:39:87 (try 1)
> [  192.807392] wlan0: authenticated
> [  192.814840] iwlwifi 0000:04:00.0: U iwlagn_tx_agg_stop Can't proceed: ssn
> 1633, next_recl = 139
> [  192.818669] wlan0: moving STA b8:c7:5d:0c:39:88 to state 2
> [  192.818939] wlan0: moving STA b8:c7:5d:0c:39:88 to state 1
> [  192.819206] wlan0: moving STA b8:c7:5d:0c:39:88 to state 0
> [  192.824157] wlan0: associate with b8:c7:5d:0c:39:87 (try 1)
> [  192.828014] wlan0: RX ReassocResp from b8:c7:5d:0c:39:87 (capab=0x431
> status=0 aid=3)
> [  192.828372] wlan0: associated
> [  192.828515] wlan0: moving STA b8:c7:5d:0c:39:87 to state 1
> [  192.828713] wlan0: moving STA b8:c7:5d:0c:39:87 to state 2
> [  193.853664] wlan0: moving STA b8:c7:5d:0c:39:87 to state 3
> [  278.421399] iwlwifi 0000:04:00.0: U iwlagn_tx_agg_start Can proceed: ssn =
> next_recl = 165
> [  278.423946] iwlwifi 0000:04:00.0: U iwl_trans_set_wr_ptrs Q 12  WrPtr: 165
> [  278.424007] iwlwifi 0000:04:00.0: U iwl_trans_tx_queue_set_status Activate
> BA Queue 12 on FIFO 1
> [  278.424835] iwlwifi 0000:04:00.0: Tx aggregation enabled on ra =
> b8:c7:5d:0c:39:87 tid = 0
> [  285.176431] iwlwifi 0000:04:00.0: I iwl_stop_queue Stop hwq 12 ac 2 stop
> count 1. Queue is full
> [  290.304163] iwlwifi 0000:04:00.0: U iwlagn_tx_agg_stop Can't proceed: ssn
> 397, next_recl = 174
> 
> 
> At this point I unloaded, and reloaded the module.
> I had to do this several times until it finally came back up.
> 
> Shortly afterwards..
> 
> [  599.752969] wlan0: authenticate with b8:c7:5d:0c:39:87 (try 1)
> [  599.755359] wlan0: authenticated
> [  599.762131] iwlwifi 0000:04:00.0: I iwl_stop_queue Stop hwq 0 ac 0 stop
> count 1. Tx on passive channel
> [  599.774132] iwlwifi 0000:04:00.0: U iwl_trans_pcie_wake_any_queue Queue
> Status: Q[0] stopped
> [  599.774551] iwlwifi 0000:04:00.0: U iwl_wake_queue Wake hwq 0 ac 0.
> Disassoc: flush queue
> [  599.774921] iwlwifi 0000:04:00.0: U iwl_trans_pcie_wake_any_queue Queue
> Status: Q[1] awake
> [  599.775779] iwlwifi 0000:04:00.0: U iwl_trans_pcie_wake_any_queue Queue
> Status: Q[2] awake
> [  599.776515] iwlwifi 0000:04:00.0: U iwl_trans_pcie_wake_any_queue Queue
> Status: Q[3] awake
> [  599.777198] iwlwifi 0000:04:00.0: I iwl_stop_queue Stop hwq 0 ac 0 stop
> count 1. Tx on passive channel
> [  599.782692] wlan0: moving STA b8:c7:5d:0c:39:88 to state 2
> [  599.782964] wlan0: moving STA b8:c7:5d:0c:39:88 to state 1
> [  599.783538] wlan0: moving STA b8:c7:5d:0c:39:88 to state 0
> [  599.790449] wlan0: associate with b8:c7:5d:0c:39:87 (try 1)
> [  599.990029] wlan0: associate with b8:c7:5d:0c:39:87 (try 2)
> [  600.190028] wlan0: associate with b8:c7:5d:0c:39:87 (try 3)
> [  600.390029] wlan0: association with b8:c7:5d:0c:39:87 timed out
> [  608.005916] wlan0: authenticate with b8:c7:5d:0c:39:87 (try 1)
> [  608.206036] wlan0: authenticate with b8:c7:5d:0c:39:87 (try 2)
> [  608.406036] wlan0: authenticate with b8:c7:5d:0c:39:87 (try 3)
> [  608.607032] wlan0: authentication with b8:c7:5d:0c:39:87 timed out
> [  616.193769] wlan0: authenticate with b8:c7:5d:0c:39:87 (try 1)
> [  616.394070] wlan0: authenticate with b8:c7:5d:0c:39:87 (try 2)
> [  616.594039] wlan0: authenticate with b8:c7:5d:0c:39:87 (try 3)
> [  616.794053] wlan0: authentication with b8:c7:5d:0c:39:87 timed out
> [  619.373114] wlan0: authenticate with b8:c7:5d:0c:39:87 (try 1)
> [  619.573124] wlan0: authenticate with b8:c7:5d:0c:39:87 (try 2)
> [  619.773146] wlan0: authenticate with b8:c7:5d:0c:39:87 (try 3)
> [  619.973146] wlan0: authentication with b8:c7:5d:0c:39:87 timed out
> [  627.666387] wlan0: authenticate with b8:c7:5d:0c:39:87 (try 1)
> [  627.866077] wlan0: authenticate with b8:c7:5d:0c:39:87 (try 2)
> [  628.066146] wlan0: authenticate with b8:c7:5d:0c:39:87 (try 3)
> [  628.266121] wlan0: authentication with b8:c7:5d:0c:39:87 timed out
> [  635.854105] wlan0: authenticate with b8:c7:5d:0c:39:87 (try 1)
> [  636.054043] wlan0: authenticate with b8:c7:5d:0c:39:87 (try 2)
> [  636.254134] wlan0: authenticate with b8:c7:5d:0c:39:87 (try 3)
> [  636.454125] wlan0: authentication with b8:c7:5d:0c:39:87 timed out
> 
Ok, I see several issues. Will get back to you
In the meantime: disable11n=1 will help (not sure it is the correct syntax, check out the modinfo please. I am in a hurry now :-))

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