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#1 2013-04-09 19:35:42

x2b
Member
Registered: 2012-05-13
Posts: 19

Wired and wireless networking not working properly

Hello all,

I have the following problem: Recently both my wired and wireless network interface stopped working properly, which is a big problem for me:
My ethernet device "Intel Corporation 82567LM Gigabit Network Connection (rev 03)" using the e1000e module: The device does not recognize whether or not the cable is plugged in, "cat /sys/class/net/eth0/{carrier,operstate}" gives me 0 /down no matter whether the cable is plugged. For this reason I can't connect to any wired network using NetworkManager (If I bring the device up manually I still loose every packet I send).

Wifi does work, except for the facts that NetworkManager always shows a connection strength of zero, which is a bit annoying. Also I get kernel panics occasionally which look something like this

[155206.941244] WARNING: at net/mac80211/driver-ops.h:12 ieee80211_bss_info_change_notify+0x335/0x340 [mac80211]()
[155206.941246] Hardware name: 7450AC7
[155206.941248] wlan0:  Failed check-sdata-in-driver check, flags: 0x4

...

[155206.941320] Pid: 1243, comm: NetworkManager Tainted: G        W    3.8.4-1-ARCH #1
[155206.941322] Call Trace:
[155206.941329]  [<c013c122>] warn_slowpath_common+0x72/0xa0
[155206.941339]  [<f8d90a15>] ? ieee80211_bss_info_change_notify+0x335/0x340 [mac80211]
[155206.941347]  [<f8d90a15>] ? ieee80211_bss_info_change_notify+0x335/0x340 [mac80211]
[155206.941351]  [<c013c1f3>] warn_slowpath_fmt+0x33/0x40
[155206.941360]  [<f8d90a15>] ieee80211_bss_info_change_notify+0x335/0x340 [mac80211]
[155206.941369]  [<f8d90ae5>] ieee80211_ifa_changed+0xc5/0xf0 [mac80211]
[155206.941374]  [<c0511b83>] notifier_call_chain+0x43/0x60
...

Is there any way that I can fix these problems? I really need a working kernel...

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#2 2013-04-09 20:18:54

jacobopantoja
Member
From: Madrid
Registered: 2011-03-16
Posts: 44

Re: Wired and wireless networking not working properly

It would be useful to know which kernel are you using. Try downgrading it.

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#3 2013-04-09 22:13:30

x2b
Member
Registered: 2012-05-13
Posts: 19

Re: Wired and wireless networking not working properly

Well, granted, downgrading from 3.8.6 to 3.8.3 seems to resolve the issues, but this seems to me to be more of a workaround that a fix. Why does archlinux come with so much broken software... sad

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#4 2013-04-09 22:50:55

ewaller
Administrator
From: Pasadena, CA
Registered: 2009-07-13
Posts: 12,735

Re: Wired and wireless networking not working properly

x2b wrote:

Well, granted, downgrading from 3.8.6 to 3.8.3 seems to resolve the issues, but this seems to me to be more of a workaround that a fix. Why does archlinux come with so much broken software... sad

Hold on, Back the truck up....   

First off, it is almost guaranteed to be an upstream problem -- if it is a problem.

Is there any chance you somehow managed to end up running a different kernel than the one installed by Pacman?  If so (and there are ways for it to happen) then the kernel may not have been able to locate the correct kernel modules.    One should compare the outputs of uname -a[/] and of [pacman -Qi linux

I'm just saying,,.


EDIT:  For example 'splain that:

[155206.941320] Pid: 1243, comm: NetworkManager Tainted: G        W    3.8.4-1-ARCH #1

Edit:  And correlate it with that:

downgrading from 3.8.6 to 3.8.3 seems to resolve the issues

Last edited by ewaller (2013-04-09 22:53:21)


Nothing is too wonderful to be true, if it be consistent with the laws of nature -- Michael Faraday
Like you, I have no idea what you are doing, but I am pretty sure it is wrong...Jasonwryan
----
How to Ask Questions the Smart Way

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#5 2013-04-10 12:38:01

x2b
Member
Registered: 2012-05-13
Posts: 19

Re: Wired and wireless networking not working properly

Agreed, the fact that a kernel update breaks my system is just another delightful feature of archlinux. smile

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