Re: wlan disappeared

On 6 August 2015 at 02:28, Beco <rcb@beco.cc> wrote:
Earlier today I picked at BIOS to see if there was something there I could change. The only reference to network there is to select where to boot from.

But I'll double check to be sure.

Ok, I got some results.

I found on BIOS an option to disable NIC, and I did. Booted to see:

# lspci -v

09:00.0 Network controller: Intel Corporation Centrino Wireless-N 1030 [Rainbow Peak] (rev 34)

Subsystem: Intel Corporation Centrino Wireless-N 1030 BGN

Flags: bus master, fast devsel, latency 0, IRQ 50

Memory at f7e00000 (64-bit, non-prefetchable) [size=8K]

Capabilities: [c8] Power Management version 3

Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+

Capabilities: [e0] Express Endpoint, MSI 00

Capabilities: [100] Advanced Error Reporting

Capabilities: [140] Device Serial Number 4c-eb-42-ff-ff-7b-a0-16

Kernel driver in use: iwlwifi

# rfkill list

0: phy0: Wireless LAN

Soft blocked: no

Hard blocked: yes

Booted again, enabled and things got very weird.

First, the FN+F2 key started working just as rffill block/unblock. So I unblocked it.

At start, the network worked for a minute. I thought that all would be good. But then, NetworkManager told me "wifi connection deactivated".

So I run some tests:

dmesg

[Thu Aug 6 05:17:50 2015] iwlwifi 0000:09:00.0: firmware: direct-loading firmware iwlwifi-6000g2b-6.ucode

[Thu Aug 6 05:17:50 2015] iwlwifi 0000:09:00.0: loaded firmware version 18.168.6.1 op_mode iwldvm

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: Error sending REPLY_TXFIFO_FLUSH: time out after 2000ms.

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: Current CMD queue read_ptr 141 write_ptr 142

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: Loaded firmware version: 18.168.6.1

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: Start IWL Error Log Dump:

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: Status: 0x0000004C, count: -30718

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: 0x14607C40 | ADVANCED_SYSASSERT

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: 0xFFFF8802 | uPc

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: 0x0000000A | branchlink1

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: 0x00000000 | branchlink2

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: 0x00000024 | interruptlink1

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: 0x00000000 | interruptlink2

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: 0x14607C80 | data1

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: 0xFFFF8802 | data2

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: 0xA0557620 | line

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: 0xFFFFFFFF | beacon time

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: 0x16192C14 | tsf low

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: 0xFFFF8802 | tsf hi

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: 0x00000000 | time gp1

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: 0x00000000 | time gp2

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: 0x14607CD8 | time gp3

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: 0xFFFF8802 | uCode version

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: 0xA0416B0A | hw version

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: 0xFFFFFFFF | board version

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: 0xFFFF8802 | hcmd

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: 0x00000020 | isr0

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: 0xFFFF8802 | isr1

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: 0x14607CE8 | isr2

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: 0xFFFF8802 | isr3

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: 0x14607CA8 | isr4

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: 0xFFFF8802 | isr_pref

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: 0x15CB8000 | wait_event

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: 0xFFFF8802 | l2p_control

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: 0x00A01C30 | l2p_duration

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: 0x00000000 | l2p_mhvalid

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: 0x00000001 | l2p_addr_match

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: 0x00000000 | lmpm_pmg_sel

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: 0x00000001 | timestamp

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: 0x00000000 | flow_handler

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: Log capacity -1515870811 is bogus, limit to 1 entries

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: Log write index -1515870811 is bogus, limit to 1

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: Start IWL Event Log Dump: display last 1 entries

[Thu Aug 6 05:22:01 2015] iwlwifi 0000:09:00.0: flush request fail

[Thu Aug 6 05:22:03 2015] iwlwifi 0000:09:00.0: Failing on timeout while stopping DMA channel 0 [0x5a5a5a5a]

[Thu Aug 6 05:22:05 2015] iwlwifi 0000:09:00.0: Failing on timeout while stopping DMA channel 2 [0x5a5a5a5a]

[Thu Aug 6 05:22:07 2015] iwlwifi 0000:09:00.0: Failing on timeout while stopping DMA channel 5 [0x5a5a5a5a]

[Thu Aug 6 05:22:08 2015] iwlwifi 0000:09:00.0: Failing on timeout while stopping DMA channel 7 [0x5a5a5a5a]

[Thu Aug 6 05:22:10 2015] iwlwifi 0000:09:00.0: Fw not loaded - dropping CMD: 18

[Thu Aug 6 05:22:10 2015] wlan0: HW problem - can not stop rx aggregation for f8:d1:11:82:71:f6 tid 0

[Thu Aug 6 05:22:10 2015] ieee80211 phy0: Hardware restart was requested

[Thu Aug 6 05:22:10 2015] iwlwifi 0000:09:00.0: Fw not loaded - dropping CMD: 1e

[Thu Aug 6 05:22:10 2015] iwlwifi 0000:09:00.0: flush request fail

[Thu Aug 6 05:22:10 2015] cfg80211: Calling CRDA to update world regulatory domain

[Thu Aug 6 05:22:10 2015] iwlwifi 0000:09:00.0: L1 Disabled - LTR Disabled

[Thu Aug 6 05:22:10 2015] iwlwifi 0000:09:00.0: Radio type=0x2-0x2-0x1

[Thu Aug 6 05:22:16 2015] iwlwifi 0000:09:00.0: Failed to load firmware chunk!

[Thu Aug 6 05:22:16 2015] iwlwifi 0000:09:00.0: Could not load the [0] uCode section

[Thu Aug 6 05:22:18 2015] iwlwifi 0000:09:00.0: Failing on timeout while stopping DMA channel 0 [0x5a5a5a5a]

[Thu Aug 6 05:22:20 2015] iwlwifi 0000:09:00.0: Failing on timeout while stopping DMA channel 2 [0x5a5a5a5a]

[Thu Aug 6 05:22:22 2015] iwlwifi 0000:09:00.0: Failing on timeout while stopping DMA channel 5 [0x5a5a5a5a]

[Thu Aug 6 05:22:24 2015] iwlwifi 0000:09:00.0: Failing on timeout while stopping DMA channel 7 [0x5a5a5a5a]

[Thu Aug 6 05:22:26 2015] iwlwifi 0000:09:00.0: Failed to run INIT ucode: -110

[Thu Aug 6 05:22:26 2015] [sched_delayed] sched: RT throttling activated

[Thu Aug 6 05:22:26 2015] iwlwifi 0000:09:00.0: Unable to initialize device.

[Thu Aug 6 05:23:58 2015] iwlwifi 0000:09:00.0: Failed to load firmware chunk!

[Thu Aug 6 05:23:58 2015] iwlwifi 0000:09:00.0: Could not load the [0] uCode section

[Thu Aug 6 05:24:00 2015] iwlwifi 0000:09:00.0: Failing on timeout while stopping DMA channel 0 [0x5a5a5a5a]

[Thu Aug 6 05:24:02 2015] iwlwifi 0000:09:00.0: Failing on timeout while stopping DMA channel 2 [0x5a5a5a5a]

[Thu Aug 6 05:24:04 2015] iwlwifi 0000:09:00.0: Failing on timeout while stopping DMA channel 5 [0x5a5a5a5a]

[Thu Aug 6 05:24:05 2015] iwlwifi 0000:09:00.0: Failing on timeout while stopping DMA channel 7 [0x5a5a5a5a]

[Thu Aug 6 05:24:07 2015] iwlwifi 0000:09:00.0: Failed to run INIT ucode: -110

[Thu Aug 6 05:24:07 2015] iwlwifi 0000:09:00.0: Unable to initialize device.

[Thu Aug 6 05:22:26 2015] wlan0: Failed check-sdata-in-driver check, flags: 0x4

Above you can see some failures. Failing to read cuncks of firmware.

Here I decided to reload modules and did:

# lsmod | grep iw

iwldvm 135156 0

mac80211 474277 1 iwldvm

iwlwifi 96547 1 iwldvm

cfg80211 405538 3 iwlwifi,mac80211,iwldvm

# rmmod iwlwifi

rmmod: ERROR: Module iwlwifi is in use by: iwldvm

# rmmod iwldvm

# modprobe iwldvm

# dmesg -T

[Thu Aug 6 05:36:20 2015] iwlwifi 0000:09:00.0: CONFIG_IWLWIFI_DEBUG disabled

[Thu Aug 6 05:36:20 2015] iwlwifi 0000:09:00.0: CONFIG_IWLWIFI_DEBUGFS disabled

[Thu Aug 6 05:36:20 2015] iwlwifi 0000:09:00.0: CONFIG_IWLWIFI_DEVICE_TRACING disabled

[Thu Aug 6 05:36:20 2015] iwlwifi 0000:09:00.0: Detected Intel(R) Centrino(R) Wireless-N 1030 BGN, REV=0xB0

[Thu Aug 6 05:36:20 2015] iwlwifi 0000:09:00.0: L1 Disabled - LTR Disabled

[Thu Aug 6 05:36:20 2015] iwlwifi 0000:09:00.0: bad EEPROM/OTP signature, type=OTP, EEPROM_GP=0x00000007

[Thu Aug 6 05:36:20 2015] iwlwifi 0000:09:00.0: EEPROM not found, EEPROM_GP=0xffffffff

[Thu Aug 6 05:36:20 2015] iwlwifi 0000:09:00.0: Unable to init EEPROM

# rfkill list

3: hci0: Bluetooth

Soft blocked: no

Hard blocked: no

And wlan0 is no more.

More boots, and repetition, gives somewhat near results. Sometimes connect for a minute, then keeps given errors.

Att,

Beco.

PS. Alternating this problem, I'm still having problems keeping USB wlan2 up. Don't know why. Should be working fine.

NetworkManager is slow. The on/off button keeps an eternity to check.

Dr Beco

A.I. researcher

"I know you think you understand what you thought I said but I'm not sure you realize that what you heard is not what I meant" -- Alan Greenspan

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Creation date: pgp.mit.edu ID as of 2014-11-09