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Bug 840985 - Kernel problems with iwlwifi driver
Kernel problems with iwlwifi driver
Status: CLOSED WORKSFORME
Product: Fedora
Classification: Fedora
Component: kernel (Show other bugs)
17
x86_64 Linux
unspecified Severity high
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Assigned To: Kernel Maintainer List
Fedora Extras Quality Assurance
:
Depends On:
Blocks:
  Show dependency treegraph
 
Reported: 2012-07-17 15:19 EDT by boblitz13
Modified: 2012-07-17 15:59 EDT (History)
5 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Environment:
Last Closed: 2012-07-17 15:59:03 EDT
Type: Bug
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---


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Description boblitz13 2012-07-17 15:19:40 EDT
Description of problem:
Network Controller:
Intel Centrino N-1000

After resuming from suspend, the wireless connection will not reconnect unless the system is rebooted. Using the $SUSPEND_MODULES variable in pm-utils and the arguments wd_disable=1 and 11n_disable=1 for modprobe iwlwifi have all been ineffective.


Version-Release number of selected component (if applicable):
kernel:
3.4.4-5.fc17.x86_64

iwlwifi firmware:
35138


How reproducible:
100% reproducible


Steps to Reproduce:
1. Boot computer
2. Suspend Fedora
3. Resume Fedora
4. Attempt to connect to wireless network
  
Actual results:
The network will not connect.


Expected results:
Network connection established.


Additional info:
dmesg after boot:

[   15.384312] Linux media interface: v0.10
[   15.666200] Intel(R) Wireless WiFi Link AGN driver for Linux, in-tree:d
[   15.666202] Copyright(c) 2003-2012 Intel Corporation
[   15.666262] iwlwifi 0000:07:00.0: pci_resource_len = 0x00002000
[   15.666264] iwlwifi 0000:07:00.0: pci_resource_base = ffffc900118b0000
[   15.666265] iwlwifi 0000:07:00.0: HW Revision ID = 0x0
[   15.666353] iwlwifi 0000:07:00.0: irq 51 for MSI/MSI-X
[   15.722054] cfg80211: World regulatory domain updated:
[   15.722060] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[   15.722066] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[   15.722071] cfg80211:   (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[   15.722075] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[   15.722080] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[   15.722084] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[   15.742547] Adding 2064380k swap on /dev/mapper/VG1-swap.  Priority:0 extents:1 across:2064380k
[   15.787439] iwlwifi 0000:07:00.0: loaded firmware version 39.31.5.1 build 35138
[   15.787670] iwlwifi 0000:07:00.0: CONFIG_IWLWIFI_DEBUG enabled
[   15.787674] iwlwifi 0000:07:00.0: CONFIG_IWLWIFI_DEBUGFS enabled
[   15.787678] iwlwifi 0000:07:00.0: CONFIG_IWLWIFI_DEVICE_TRACING disabled
[   15.787681] iwlwifi 0000:07:00.0: CONFIG_IWLWIFI_DEVICE_TESTMODE disabled
[   15.787685] iwlwifi 0000:07:00.0: CONFIG_IWLWIFI_P2P disabled
[   15.787690] iwlwifi 0000:07:00.0: Detected Intel(R) Centrino(R) Wireless-N 1000 BGN, REV=0x6C
[   15.787779] iwlwifi 0000:07:00.0: L1 Enabled; Disabling L0S
[   15.811599] iwlwifi 0000:07:00.0: device EEPROM VER=0x15d, CALIB=0x6
[   15.811604] iwlwifi 0000:07:00.0: Device SKU: 0x50
[   15.811608] iwlwifi 0000:07:00.0: Valid Tx ant: 0x1, Valid Rx ant: 0x3
[   15.811626] iwlwifi 0000:07:00.0: Tunable channels: 13 802.11bg, 0 802.11a channels
[   15.811810] Registered led device: phy0-led
[   15.842906] ieee80211 phy0: Selected rate control algorithm 'iwl-agn-rs'

dmesg after successful connection to wireless network:

[   31.849348] 8021q: 802.1Q VLAN Support v1.8
[   31.892151] iwlwifi 0000:07:00.0: L1 Enabled; Disabling L0S
[   31.949519] iwlwifi 0000:07:00.0: L1 Enabled; Disabling L0S
[   32.007121] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[   32.007169] netlink: 12 bytes leftover after parsing attributes.
[   32.007176] netlink: 12 bytes leftover after parsing attributes.
[   32.007715] netlink: 12 bytes leftover after parsing attributes.
[   32.543991] wlan0: authenticate with 30:46:9a:1c:4d:d8
[   32.556734] wlan0: send auth to 30:46:9a:1c:4d:d8 (try 1/3)
[   32.559216] wlan0: authenticated
[   32.560119] wlan0: associate with 30:46:9a:1c:4d:d8 (try 1/3)
[   32.564364] wlan0: RX AssocResp from 30:46:9a:1c:4d:d8 (capab=0x31 status=0 aid=1)
[   32.564374] wlan0: associated
[   32.571538] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[   32.571789] cfg80211: Calling CRDA for country: US
[   32.582700] cfg80211: Regulatory domain changed to country: US
[   32.582708] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[   32.582715] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2700 mBm)
[   32.582722] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 1700 mBm)
[   32.582728] cfg80211:   (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[   32.582733] cfg80211:   (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[   32.582739] cfg80211:   (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[   32.582744] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 3000 mBm)
[   43.241398] wlan0: no IPv6 routers present

dmesg after failed connection:

[11557.027717] iwlwifi 0000:07:00.0: L1 Enabled; Disabling L0S
[11557.090730] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[11557.967719] wlan0: authenticate with 30:46:9a:1c:4d:d8
[11557.978211] wlan0: send auth to 30:46:9a:1c:4d:d8 (try 1/3)
[11558.179006] wlan0: send auth to 30:46:9a:1c:4d:d8 (try 2/3)
[11558.379893] wlan0: send auth to 30:46:9a:1c:4d:d8 (try 3/3)
[11558.580837] wlan0: authentication with 30:46:9a:1c:4d:d8 timed out
[11558.586932] iwlwifi 0000:07:00.0: ACTIVATE a non DRIVER active station id 0 addr 30:46:9a:1c:4d:d8
[11560.588440] iwlwifi 0000:07:00.0: fail to flush all tx fifo queues
[11561.013613] wlan0: authenticate with 30:46:9a:1c:4d:d8
[11563.013717] iwlwifi 0000:07:00.0: fail to flush all tx fifo queues
[11563.025336] wlan0: direct probe to 30:46:9a:1c:4d:d8 (try 1/3)
[11563.225543] wlan0: direct probe to 30:46:9a:1c:4d:d8 (try 2/3)
[11563.426564] wlan0: direct probe to 30:46:9a:1c:4d:d8 (try 3/3)
[11563.627507] wlan0: authentication with 30:46:9a:1c:4d:d8 timed out
Comment 1 boblitz13 2012-07-17 15:59:03 EDT
After 3 months of looking, I finally found the solutions minutes after deciding to post this bug. Sorry for the inconvenience.

rmmod iwlwifi
modprobe iwlagn bt_coex_active=0

solves the problem and wireless connects again.

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