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Old 04-13-2016, 08:50 AM   #16
blnl
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Quote:
Originally Posted by ardvark71 View Post
Hi...

Awesome! If you could identify the culprit, perhaps a patch could be released by the folks who develop/maintain it.

Regards...
Yes, I shall try to do that. It is important to pinpoint the issue because it is already inherited by fc23, which cannot connect to TLS network either, not even from a LiveCD.
Only I need to find the time for debugging. The TLS network in question is a corporate network, so I must do all this experimenting during the work time. The important thing is that I'm mobile again and do not have to boot Windows when going to meetings.
 
Old 04-13-2016, 01:24 PM   #17
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Quote:
Originally Posted by blnl View Post
Yes, I shall try to do that. It is important to pinpoint the issue because it is already inherited by fc23, which cannot connect to TLS network either, not even from a LiveCD.
Only I need to find the time for debugging. The TLS network in question is a corporate network, so I must do all this experimenting during the work time. The important thing is that I'm mobile again and do not have to boot Windows when going to meetings.
Hi...

Let us know what you find out.

Regards...
 
Old 04-14-2016, 06:12 AM   #18
blnl
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At this point in time, as long as the TLS network connection works with kernel version:
Code:
kernel.x86_64                                      4.0.4-301.fc22                                        @fedora
I decided to try out if it still works with the latest kernel. To my surprise and disappointment, it does not.
It does not work with the latest kernel version:
Code:
kernel.x86_64                                      4.4.6-201.fc22                                        @updates
Now I'm totally confused. I do not understand this kernel dependency...


With the latest kernel the wifi interface does not exist at all. Not only TLS network, but any other wireless network is not available. There is nothing to choose from.

This is the iwconfig output with 4.4.6-201.fc22 kernel:
Code:
/boris@E7440 ~/$ iwconfig
virbr0-nic  no wireless extensions.

virbr0    no wireless extensions.

eno1      no wireless extensions.

lo        no wireless extensions.

This is the iwconfig output with 4.0.4-301.fc22 kernel (with wifi turned off):
Code:
[boris@E7440 ~]$ iwconfig
virbr0-nic  no wireless extensions.

virbr0    no wireless extensions.

wlp2s0    IEEE 802.11abgn  ESSID:off/any  
          Mode:Managed  Access Point: Not-Associated   Tx-Power=off   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:on
          
eno1      no wireless extensions.

lo        no wireless extensions.
 
Old 04-14-2016, 08:32 AM   #19
blnl
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For the time being I'm stuck with the 4.0.4-301.fc22 kernel. Now I'm proceeding with the evaluation of the individual packages.

So far, NetworkManager related and gnutls related packages have been eliminated as potential root-cause for this issue.

These are my remaining suspects...
Code:
[root@E7440 boris]# dnf update
Last metadata expiration check performed 1:21:56 ago on Thu Apr 14 13:03:42 2016.
Dependencies resolved.
==============================================================================================================================================
 Package                                Arch                      Version                                    Repository                  Size
==============================================================================================================================================
Upgrading:
 iwl100-firmware                        noarch                    39.31.5.1-61.fc22                          updates                    154 k
 iwl1000-firmware                       noarch                    1:39.31.5.1-61.fc22                        updates                    217 k
 iwl105-firmware                        noarch                    18.168.6.1-61.fc22                         updates                    238 k
 iwl135-firmware                        noarch                    18.168.6.1-61.fc22                         updates                    247 k
 iwl2000-firmware                       noarch                    18.168.6.1-61.fc22                         updates                    241 k
 iwl2030-firmware                       noarch                    18.168.6.1-61.fc22                         updates                    250 k
 iwl3160-firmware                       noarch                    1:25.30.13.0-61.fc22                       updates                    979 k
 iwl3945-firmware                       noarch                    15.32.2.9-61.fc22                          updates                     92 k
 iwl4965-firmware                       noarch                    228.61.2.24-61.fc22                        updates                    105 k
 iwl5000-firmware                       noarch                    8.83.5.1_1-61.fc22                         updates                    298 k
 iwl5150-firmware                       noarch                    8.24.2.2-61.fc22                           updates                    151 k
 iwl6000-firmware                       noarch                    9.221.4.1-61.fc22                          updates                    171 k
 iwl6000g2a-firmware                    noarch                    18.168.6.1-61.fc22                         updates                    314 k
 iwl6000g2b-firmware                    noarch                    18.168.6.1-61.fc22                         updates                    314 k
 iwl6050-firmware                       noarch                    41.28.5.1-61.fc22                          updates                    247 k
 iwl7260-firmware                       noarch                    1:25.30.13.0-61.fc22                       updates                    2.5 M
 wpa_supplicant                         x86_64                    1:2.4-7.fc22                               updates                    1.0 M

Transaction Summary
==============================================================================================================================================
Upgrade  17 Packages

Total download size: 7.5 M
Is this ok [y/N]: n
Operation aborted.
 
Old 04-14-2016, 03:53 PM   #20
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This is some excellent detective work.

Regards...
 
Old 04-19-2016, 05:11 AM   #21
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At last, all firmware (iwl*-firmware) packages have been upgraded, TLS wifi network still works (also with the latest kernel version).
There is only one package left, wpa_supplicant...


So the conclusion of this exercise is following:

TLS network connection works fine:
Code:
[root@E7440 ~]# dmesg | tail -n 15
[  222.992544] iwlwifi 0000:02:00.0: RF_KILL bit toggled to enable radio.
[  222.992865] iwlwifi 0000:02:00.0: L1 Enabled - LTR Enabled
[  222.993194] iwlwifi 0000:02:00.0: L1 Enabled - LTR Enabled
[  223.201102] iwlwifi 0000:02:00.0: L1 Enabled - LTR Enabled
[  223.201429] iwlwifi 0000:02:00.0: L1 Enabled - LTR Enabled
[  223.219686] IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready
[  223.240283] IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready
[  225.748795] wlp2s0: authenticate with 84:b8:02:de:99:11
[  225.751748] wlp2s0: send auth to 84:b8:02:de:99:11 (try 1/3)
[  225.752802] wlp2s0: authenticated
[  225.753297] wlp2s0: associate with 84:b8:02:de:99:11 (try 1/3)
[  225.755509] wlp2s0: RX AssocResp from 84:b8:02:de:99:11 (capab=0x431 status=0 aid=22)
[  225.756869] wlp2s0: associated
[  225.756900] IPv6: ADDRCONF(NETDEV_CHANGE): wlp2s0: link becomes ready
It works with the latest kernel version too:
Code:
[root@E7440 ~]# uname -a
Linux E7440.DELL 4.4.6-201.fc22.x86_64 #1 SMP Wed Mar 30 18:30:16 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
The system is fully updated, except for the wpa_supplicant package.
Code:
[root@E7440 ~]# dnf update 
Last metadata expiration check performed 0:21:56 ago on Tue Apr 19 10:40:34 2016.
Dependencies resolved.
=========================================================================================================================
 Package                         Arch                    Version                          Repository                Size
=========================================================================================================================
Upgrading:
 wpa_supplicant                  x86_64                  1:2.4-7.fc22                     updates                  1.0 M

Transaction Summary
=========================================================================================================================
Upgrade  1 Package

Total download size: 1.0 M
Is this ok [y/N]: n
Operation aborted.
Hence, the wpa_supplicant is the root-cause for the TLS network connection issue.

Before filing a bug report, I'm going to verify this by upgrading the wpa_supplicant...
 
Old 04-19-2016, 03:08 PM   #22
ardvark71
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Quote:
Originally Posted by blnl View Post
Before filing a bug report, I'm going to verify this by upgrading the wpa_supplicant...
Hi...

If you would, if you make a bug report, please post the link to it.

Regards...
 
Old 04-20-2016, 11:52 AM   #23
blnl
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Post

Quote:
Originally Posted by ardvark71 View Post
Hi...

If you would, if you make a bug report, please post the link to it.

Regards...
The bug report can be found at:
  • Bug 1328927 - wpa_supplicant TLS network connection issue
So, that is done, now we wait ...
 
Old 04-20-2016, 12:29 PM   #24
ardvark71
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Quote:
Originally Posted by blnl View Post
The bug report can be found at:
  • Bug 1328927 - wpa_supplicant TLS network connection issue
So, that is done, now we wait ...
Thank you. Just as a suggestion, I wonder if including a link to this thread might be helpful.

Regards...
 
Old 04-21-2016, 05:49 AM   #25
blnl
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Quote:
Originally Posted by ardvark71 View Post
Thank you. Just as a suggestion, I wonder if including a link to this thread might be helpful.

Regards...
I'm not sure, it might just confuse the conversation. In the bug report, I have given the essential details of the issue. The given information should be sufficient for the developers to reproduce the issue (the debugging process described in the thread is not relevant).

If I can find the source code for the two wpa_supplicant versions, I will diff them to see if something interesting/obvious pops up. That could be more useful for the bug report...
 
  


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