Hello.
I have been running Ubuntu since 8.10 on my Thinkpad X200. Over the years,
my wifi has been problematic with linux, but the past year or so it's
generally been working well. However, lately I ran into a regression with
a stable rebuild of 3.2 (-35 in ubuntu-land).
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1096294
The information here is generally a bit low on detail because I have
little idea how to collect information suitable for meaningfull debugging.
Short: 3.2 gained a regression about 2 months ago. I usually solved
this by rebooting the AP or doing rmmod/modprobe iwlwifi, or rebooting
into 3.8.0 and then booting back into 3.2.0-34.
Then when I tried -39, my 5GHz wifi stopped working completely (would only
stay associated for a few seconds, then disconnect with local reason 3),
tried rebooting the AP, same thing. I tried 3.8.0 which worked before, it
behaved the same way. I also tried 3.9-rc4, same result. So now I was
without 5GHz for a 1-2 weeks, running only on 2.4GHz.
Then I installed and booted into Win8 to verify my hardware. Worked fine
with 5GHz. Then I booted back into 3.2.0-34, which then all of a sudden
worked fine, and now I am on 3.2.0-39 which is also fine.
Is there anything in Intel 5300 that can survive between cold boots that
booting into Win8 might magically fix, especially something that might
have been touched by recent changes in 3.2 stable and 3.8-3.9 ?
--
Mikael Abrahamsson email: [email protected]
On Fri, 29 Mar 2013, Mikael Abrahamsson wrote:
Another data point.
With 3.2.0-39 with backported 3.6 drivers
(linux-backports-modules-cw-3.6-3.2.0-39-generic-pae).
$ dmesg | egrep -v '(mBi)|(width channel with regulatory)'
[258225.012319] iwlwifi 0000:03:00.0: fail to flush all tx fifo queues
[258227.020323] iwlwifi 0000:03:00.0: fail to flush all tx fifo queues
[258227.032182] ------------[ cut here ]------------
[258227.032212] WARNING: at
/build/buildd/linux-backports-modules-3.2.0-3.2.0/debian/build/build-generic-pae/cw-3.6/drivers/net/wireless/iwlwifi/dvm/tx.c:1187
iwlagn_rx_reply_tx+0x984/0x9b0 [iwldvm]()
[258227.032222] Hardware name: 7454CTO
[258227.032227] Modules linked in: iwldvm(O) iwlwifi(O) pci_stub
vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) rfcomm(O) parport_pc
bnep(O) ppdev binfmt_misc dm_crypt arc4 mac80211(O) dm_multipath
snd_hda_codec_conexant thinkpad_acpi uvcvideo videodev snd_hda_intel
snd_hda_codec snd_hwdep snd_pcm btusb(O) bluetooth(O) snd_seq_midi psmouse
snd_rawmidi serio_raw crystalhd(C) cfg80211(O) snd_seq_midi_event
compat(O) snd_seq snd_timer snd_seq_device snd soundcore snd_page_alloc
nvram tpm_tis mei(C) mac_hid coretemp lp parport raid10 raid456
async_raid6_recov async_pq raid6_pq async_xor xor async_memcpy async_tx
raid1 raid0 multipath linear wmi i915 drm_kms_helper drm i2c_algo_bit
video [last unloaded: iwlwifi]
[258227.032385] Pid: 0, comm: swapper/0 Tainted: G WC O
3.2.0-39-generic-pae #62-Ubuntu
[258227.032392] Call Trace:
[258227.032408] [<c159294f>] ? printk+0x2d/0x2f
[258227.032421] [<c105a5b2>] warn_slowpath_common+0x72/0xa0
[258227.032441] [<f92fad44>] ? iwlagn_rx_reply_tx+0x984/0x9b0 [iwldvm]
[258227.032460] [<f92fad44>] ? iwlagn_rx_reply_tx+0x984/0x9b0 [iwldvm]
[258227.032470] [<c105a602>] warn_slowpath_null+0x22/0x30
[258227.032489] [<f92fad44>] iwlagn_rx_reply_tx+0x984/0x9b0 [iwldvm]
[258227.032513] [<f93043ce>] iwl_rx_dispatch+0x6e/0xe0 [iwldvm]
[258227.032524] [<c15a870d>] ? _raw_spin_lock_irqsave+0x2d/0x40
[258227.032546] [<f9235de1>] iwl_irq_tasklet+0x761/0xe10 [iwlwifi]
[258227.032559] [<c1061270>] ? local_bh_enable_ip+0x90/0x90
[258227.032567] [<c1060d93>] tasklet_action+0x63/0x110
[258227.032576] [<c1061270>] ? local_bh_enable_ip+0x90/0x90
[258227.032584] [<c10612f1>] __do_softirq+0x81/0x1a0
[258227.032593] [<c1061270>] ? local_bh_enable_ip+0x90/0x90
[258227.032599] <IRQ> [<c1061636>] ? irq_exit+0x76/0xa0
[258227.032615] [<c15b00db>] ? do_IRQ+0x4b/0xc0
[258227.032625] [<c1017be8>] ? sched_clock+0x8/0x10
[258227.032636] [<c107ffeb>] ? sched_clock_local+0xcb/0x1c0
[258227.032645] [<c15aff30>] ? common_interrupt+0x30/0x38
[258227.032654] [<c10800d8>] ? sched_clock_local+0x1b8/0x1c0
[258227.032667] [<c132ad49>] ? arch_local_irq_enable+0x7/0xb
[258227.032676] [<c132ba7d>] ? acpi_idle_enter_bm+0x228/0x268
[258227.032688] [<c147e86d>] ? cpuidle_idle_call+0xad/0x250
[258227.032698] [<c101075c>] ? cpu_idle+0x9c/0xe0
[258227.032707] [<c15755a5>] ? rest_init+0x5d/0x68
[258227.032719] [<c1879787>] ? start_kernel+0x352/0x358
[258227.032728] [<c18793c6>] ? pass_bootoption.constprop.2+0xe2/0xe2
[258227.032738] [<c18790ba>] ? i386_start_kernel+0xa9/0xaf
[258227.032744] ---[ end trace feca50f599babef6 ]---
[258227.056390] cfg80211: All devices are disconnected, going to restore regulatory settings
[258227.056403] cfg80211: Restoring regulatory settings
[258227.056457] cfg80211: Calling CRDA to update world regulatory domain
[258227.066918] cfg80211: Ignoring regulatory request Set by core since the driver uses its own custom regulatory domain
[258227.066929] cfg80211: World regulatory domain updated:
[258227.066934] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[258229.064322] iwlwifi 0000:03:00.0: fail to flush all tx fifo queues
[258229.862563] cfg80211: Found new beacon on frequency: 5240 MHz (Ch 48) on phy1
[258232.182146] wlan0: authenticate with 00:21:91:dc:94:57
[258232.189197] wlan0: send auth to 00:21:91:dc:94:57 (try 1/3)
[258232.392066] wlan0: send auth to 00:21:91:dc:94:57 (try 2/3)
[258232.392619] wlan0: authenticated
[258232.396126] wlan0: associate with 00:21:91:dc:94:57 (try 1/3)
[258232.398428] wlan0: RX AssocResp from 00:21:91:dc:94:57 (capab=0x111 status=0 aid=3)
[258232.401793] wlan0: associated
[258232.402327] cfg80211: Calling CRDA for country: GB
[258232.415042] cfg80211: Disabling freq 5745 MHz
[258232.415047] cfg80211: Disabling freq 5765 MHz
[258232.415052] cfg80211: Disabling freq 5785 MHz
[258232.415057] cfg80211: Disabling freq 5805 MHz
[258232.415062] cfg80211: Disabling freq 5825 MHz
[258232.415074] cfg80211: Regulatory domain changed to country: GB
[258232.415079] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[258232.415087] cfg80211: (2402000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm)
[258232.415094] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (N/A, 2000 mBm)
[258232.415101] cfg80211: (5250000 KHz - 5330000 KHz @ 40000 KHz), (N/A, 2000 mBm)
[258232.415109] cfg80211: (5490000 KHz - 5710000 KHz @ 40000 KHz), (N/A, 2700 mBm)
[258232.422442] cfg80211: Found new beacon on frequency: 5240 MHz (Ch 48) on phy1
[258246.404269] iwlwifi 0000:03:00.0: fail to flush all tx fifo queues
[258253.008079] iwlwifi 0000:03:00.0: fail to flush all tx fifo queues
[258255.996296] iwlwifi 0000:03:00.0: fail to flush all tx fifo queues
[258258.004275] iwlwifi 0000:03:00.0: fail to flush all tx fifo queues
[258258.040592] cfg80211: All devices are disconnected, going to restore regulatory settings
[258258.040604] cfg80211: Restoring regulatory settings
[258258.040622] cfg80211: Calling CRDA to update world regulatory domain
[258258.051346] cfg80211: Ignoring regulatory request Set by core since the driver uses its own custom regulatory domain
[258258.051357] cfg80211: World regulatory domain updated:
[258258.051362] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[258260.044161] iwlwifi 0000:03:00.0: fail to flush all tx fifo queues
[258260.889810] cfg80211: Found new beacon on frequency: 5240 MHz (Ch 48) on phy1
[258263.210853] wlan0: authenticate with 00:21:91:dc:94:57
[258263.223043] wlan0: send auth to 00:21:91:dc:94:57 (try 1/3)
[258263.424067] wlan0: send auth to 00:21:91:dc:94:57 (try 2/3)
[258263.475989] wlan0: authenticated
[258263.480083] wlan0: associate with 00:21:91:dc:94:57 (try 1/3)
[258263.481062] wlan0: RX AssocResp from 00:21:91:dc:94:57 (capab=0x111 status=0 aid=3)
[258263.485398] wlan0: associated
[258263.485970] cfg80211: Calling CRDA for country: GB
[258263.500626] cfg80211: Disabling freq 5745 MHz
[258263.500631] cfg80211: Disabling freq 5765 MHz
[258263.500636] cfg80211: Disabling freq 5785 MHz
[258263.500640] cfg80211: Disabling freq 5805 MHz
[258263.500645] cfg80211: Disabling freq 5825 MHz
[258263.500656] cfg80211: Regulatory domain changed to country: GB
[258263.500662] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[258263.500670] cfg80211: (2402000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm)
[258263.500677] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (N/A, 2000 mBm)
[258263.500685] cfg80211: (5250000 KHz - 5330000 KHz @ 40000 KHz), (N/A, 2000 mBm)
[258263.500692] cfg80211: (5490000 KHz - 5710000 KHz @ 40000 KHz), (N/A, 2700 mBm)
[258263.552238] cfg80211: Found new beacon on frequency: 5240 MHz (Ch 48) on phy1
[258366.416322] iwlwifi 0000:03:00.0: fail to flush all tx fifo queues
[258366.416534] wlan0: deauthenticating from 00:21:91:dc:94:57 by local choice (reason=3)
[258368.424282] iwlwifi 0000:03:00.0: fail to flush all tx fifo queues
[258370.432326] iwlwifi 0000:03:00.0: fail to flush all tx fifo queues
[258372.448317] iwlwifi 0000:03:00.0: fail to flush all tx fifo queues
[258372.449675] cfg80211: All devices are disconnected, going to restore regulatory settings
[258372.449687] cfg80211: Restoring regulatory settings
[258372.449699] cfg80211: Calling CRDA to update world regulatory domain
[258372.483302] cfg80211: Ignoring regulatory request Set by core since the driver uses its own custom regulatory domain
[258372.483306] cfg80211: World regulatory domain updated:
[258372.483308] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[258373.783594] iwlwifi 0000:03:00.0: PCI INT A disabled
[258377.916613] Intel(R) Wireless WiFi driver for Linux, in-tree:
[258377.916617] Copyright(c) 2003-2012 Intel Corporation
[258377.916670] iwlwifi 0000:03:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
[258377.916683] iwlwifi 0000:03:00.0: setting latency timer to 64
[258377.916708] iwlwifi 0000:03:00.0: pci_resource_len = 0x00002000
[258377.916710] iwlwifi 0000:03:00.0: pci_resource_base = f8450000
[258377.916713] iwlwifi 0000:03:00.0: HW Revision ID = 0x0
[258377.916799] iwlwifi 0000:03:00.0: irq 46 for MSI/MSI-X
[258377.922557] iwlwifi 0000:03:00.0: loaded firmware version 8.83.5.1 build 33692
[258377.928633] iwldvm: Intel(R) Wireless WiFi Link AGN driver for Linux, in-tree:
[258377.928636] iwldvm: Copyright(c) 2003-2012 Intel Corporation
[258377.928663] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUG disabled
[258377.928665] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUGFS enabled
[258377.928667] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEVICE_TRACING enabled
[258377.928670] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEVICE_TESTMODE disabled
[258377.928672] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_P2P enabled
[258377.928674] iwlwifi 0000:03:00.0: Detected Intel(R) Ultimate N WiFi Link 5300 AGN, REV=0x24
[258377.928736] iwlwifi 0000:03:00.0: L1 Disabled; Enabling L0S
[258377.950610] iwlwifi 0000:03:00.0: device EEPROM VER=0x11f, CALIB=0x4
[258377.950613] iwlwifi 0000:03:00.0: Device SKU: 0xF0
[258377.950615] iwlwifi 0000:03:00.0: Valid Tx ant: 0x7, Valid Rx ant: 0x7
[258377.950754] Registered led device: phy2-led
[258377.950788] cfg80211: Ignoring regulatory request Set by core since the driver uses its own custom regulatory domain
[258377.951642] ieee80211 phy2: Selected rate control algorithm 'iwl-agn-rs'
[258377.963777] iwlwifi 0000:03:00.0: L1 Disabled; Enabling L0S
[258377.966853] iwlwifi 0000:03:00.0: Radio type=0x0-0x2-0x0
[258378.116464] iwlwifi 0000:03:00.0: L1 Disabled; Enabling L0S
[258378.119418] iwlwifi 0000:03:00.0: Radio type=0x0-0x2-0x0
[258378.168759] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[258378.169344] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[258380.186475] cfg80211: Found new beacon on frequency: 5240 MHz (Ch 48) on phy2
[258385.789055] wlan0: authenticate with 00:21:91:dc:94:57
[258385.794819] wlan0: send auth to 00:21:91:dc:94:57 (try 1/3)
[258385.996051] wlan0: send auth to 00:21:91:dc:94:57 (try 2/3)
[258385.996547] wlan0: authenticated
[258386.000041] wlan0: associate with 00:21:91:dc:94:57 (try 1/3)
[258386.000931] wlan0: RX AssocResp from 00:21:91:dc:94:57 (capab=0x111 status=0 aid=3)
[258386.002233] wlan0: associated
[258386.002390] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[258386.002461] cfg80211: Calling CRDA for country: GB
[258386.008598] cfg80211: Disabling freq 5745 MHz
[258386.008600] cfg80211: Disabling freq 5765 MHz
[258386.008603] cfg80211: Disabling freq 5785 MHz
[258386.008605] cfg80211: Disabling freq 5805 MHz
[258386.008607] cfg80211: Disabling freq 5825 MHz
[258386.008613] cfg80211: Regulatory domain changed to country: GB
[258386.008616] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[258386.008620] cfg80211: (2402000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm)
[258386.008623] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (N/A, 2000 mBm)
[258386.008627] cfg80211: (5250000 KHz - 5330000 KHz @ 40000 KHz), (N/A, 2000 mBm)
[258386.008630] cfg80211: (5490000 KHz - 5710000 KHz @ 40000 KHz), (N/A, 2700 mBm)
[258386.023210] cfg80211: Found new beacon on frequency: 5240 MHz (Ch 48) on phy2
On Mon, 2013-04-01 at 19:12 +0200, Mikael Abrahamsson wrote:
> On Fri, 29 Mar 2013, Mikael Abrahamsson wrote:
>
> Another data point.
>
> With 3.2.0-39 with backported 3.6 drivers
> (linux-backports-modules-cw-3.6-3.2.0-39-generic-pae).
I really have no idea what your distro (Ubuntu?) backports into
everything, sorry.
If you can't connect, this might be related:
http://git.kernel.org/cgit/linux/kernel/git/iwlwifi/iwlwifi-fixes.git/commit/?id=b8730b403aee94db4631bfefb546a6ce8c287dc2
johannes