FS#46531 - [linux] unable to connect to wireless network with 4.2.2

Attached to Project: Arch Linux
Opened by Sami B. (spider-mario) - Friday, 02 October 2015, 11:48 GMT
Last edited by Doug Newgard (Scimmia) - Saturday, 13 August 2016, 23:28 GMT
Task Type Bug Report
Category Kernel
Status Closed
Assigned To Tobias Powalowski (tpowa)
Architecture All
Severity High
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

Since upgrading to Linux 4.2.2, I cannot connect to my Wi-Fi network anymore. NetworkManager is still able to list available networks, but any attempt to connect to one just hangs until NM gives up.

It works correctly with the LTS kernel (4.1.8).

My wi-fi driver module is ath9k (attached is the output of lshw for my wireless interface).
   wlan.txt (0.6 KiB)
This task depends upon

Closed by  Doug Newgard (Scimmia)
Saturday, 13 August 2016, 23:28 GMT
Reason for closing:  Fixed
Comment by Sami B. (spider-mario) - Friday, 02 October 2015, 12:00 GMT
Here is the output from dmesg when it works (4.1.8, relevant messages start at 17s) and when it does not (4.2.2, relevant messages start around 18s).
   dmesg-4.1.8.txt (60.7 KiB)
   dmesg-4.2.2.txt (66.6 KiB)
Comment by Sami B. (spider-mario) - Friday, 09 October 2015, 08:03 GMT
This thread seems related to this issue: https://bbs.archlinux.org/viewtopic.php?id=203027
Comment by David Bailey (tech4david) - Sunday, 11 October 2015, 16:25 GMT
I'm getting a similar problem on 4.2.2; Wi-Fi is working but very slowly. Works fine on LTS kernel version.
   lspci.txt (2 KiB)
Comment by Sami B. (spider-mario) - Friday, 16 October 2015, 16:50 GMT
It seems not to work anymore with the lts kernel either (4.1.10-2). The regression appears to have been backported.

Edit: it hasn’t. Never mind. Sorry.
Comment by Sami B. (spider-mario) - Saturday, 13 August 2016, 23:15 GMT
Update: it finally works again with 4.7.

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