e1000e integrated laptop NIC loses carrier

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e1000e integrated laptop NIC loses carrier

"Tóth Attila"
I don't know if it's just me, but I noticed, that I cannot connect to my
laptop after a while. It happens using hardened kernel versions 3.8.2 &
3.8.3, however 3.8.0-r1 seems to be free of this problem.
The interface stays up, the LED are showing normal status, but attempts to
use the card are unsuccessful. Ethtool reports no carrier. Therefore I
cannot renew the DHCP address. NIC selftests return without any problem.
It's probably non-hardened-related, but I thought I would communicate my
findings to the list, because others might struggling with it as well. I
cannot find any relevant results on google.
The only message I could discover in my logs is that suddenly the laptop
switches on its wireless card automatically, which happens if there's no
wired connection. Right after that the wireless gets switched off again
immediately. At this time I can no longer use eth0. But still be able to
connect using the wireless interface.
Intel pci-e NICs are so abundant, that I hope others will also experience
these symptoms which will bring the attention of the driver maintainers or
whatever responsible folks.

Regards:
Dw.
--
dr Tóth Attila, Radiológus, 06-20-825-8057
Attila Toth MD, Radiologist, +36-20-825-8057


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Re: e1000e integrated laptop NIC loses carrier

pva0xd
Hi, Tóth.

В Вс, 24/03/2013 в 17:10 +0100, "Tóth Attila" пишет:

> I don't know if it's just me, but I noticed, that I cannot connect to my
> laptop after a while. It happens using hardened kernel versions 3.8.2 &
> 3.8.3, however 3.8.0-r1 seems to be free of this problem.
> The interface stays up, the LED are showing normal status, but attempts to
> use the card are unsuccessful. Ethtool reports no carrier. Therefore I
> cannot renew the DHCP address. NIC selftests return without any problem.
> It's probably non-hardened-related, but I thought I would communicate my
> findings to the list, because others might struggling with it as well. I
> cannot find any relevant results on google.
> The only message I could discover in my logs is that suddenly the laptop
> switches on its wireless card automatically, which happens if there's no
> wired connection. Right after that the wireless gets switched off again
> immediately. At this time I can no longer use eth0. But still be able to
> connect using the wireless interface.
> Intel pci-e NICs are so abundant, that I hope others will also experience
> these symptoms which will bring the attention of the driver maintainers or
> whatever responsible folks.

In my laptop I have following card:

00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network
Connection (rev 04)
        Subsystem: Lenovo Device 21ce
        Flags: bus master, fast devsel, latency 0, IRQ 43
        Memory at f2600000 (32-bit, non-prefetchable) [size=128K]
        Memory at f262b000 (32-bit, non-prefetchable) [size=4K]
        I/O ports at 5080 [size=32]
        Capabilities: [c8] Power Management version 2
        Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+
        Capabilities: [e0] PCI Advanced Features
        Kernel driver in use: e1000e

that works without any problems on 3.8.2-hardened-r1. Also, are you sure
this is hardened issue? Try vanilla sources to check if it's broken
there too...


WBR,
--
Peter.


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Re: e1000e integrated laptop NIC loses carrier

"Tóth Attila"
Hi Peter,

I think it's probably non-hardened related. The only change in my config
was to omit the introduced constify plugin causing problems on my server.
Otherwise the config is the same.
I cannot even remember the last time I ever booted a non-hardened kernel
on any of my machines...

Otherwise the device is probably pretty much similar:
00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network
Connection (rev 04)
        Subsystem: Hewlett-Packard Company Device 1631
        Flags: bus master, fast devsel, latency 0, IRQ 48
        Memory at d4500000 (32-bit, non-prefetchable) [size=128K]
        Memory at d452a000 (32-bit, non-prefetchable) [size=4K]
        I/O ports at 5020 [size=32]
        Capabilities: [c8] Power Management version 2
        Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+
        Capabilities: [e0] PCI Advanced Features
        Kernel driver in use: e1000e
The only difference I can imagine is some firmware code change to make it
vendor specific.

Dwokfur/Attila
--
dr Tóth Attila, Radiológus, 06-20-825-8057
Attila Toth MD, Radiologist, +36-20-825-8057

2013.Március 24.(V) 18:15 időpontban Peter Volkov ezt írta:

> Hi, Tóth.
>
> В Вс, 24/03/2013 в 17:10 +0100, "Tóth Attila" пишет:
>> I don't know if it's just me, but I noticed, that I cannot connect to my
>> laptop after a while. It happens using hardened kernel versions 3.8.2 &
>> 3.8.3, however 3.8.0-r1 seems to be free of this problem.
>> The interface stays up, the LED are showing normal status, but attempts
>> to
>> use the card are unsuccessful. Ethtool reports no carrier. Therefore I
>> cannot renew the DHCP address. NIC selftests return without any problem.
>> It's probably non-hardened-related, but I thought I would communicate my
>> findings to the list, because others might struggling with it as well. I
>> cannot find any relevant results on google.
>> The only message I could discover in my logs is that suddenly the laptop
>> switches on its wireless card automatically, which happens if there's no
>> wired connection. Right after that the wireless gets switched off again
>> immediately. At this time I can no longer use eth0. But still be able to
>> connect using the wireless interface.
>> Intel pci-e NICs are so abundant, that I hope others will also
>> experience
>> these symptoms which will bring the attention of the driver maintainers
>> or
>> whatever responsible folks.
>
> In my laptop I have following card:
>
> 00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network
> Connection (rev 04)
>         Subsystem: Lenovo Device 21ce
>         Flags: bus master, fast devsel, latency 0, IRQ 43
>         Memory at f2600000 (32-bit, non-prefetchable) [size=128K]
>         Memory at f262b000 (32-bit, non-prefetchable) [size=4K]
>         I/O ports at 5080 [size=32]
>         Capabilities: [c8] Power Management version 2
>         Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+
>         Capabilities: [e0] PCI Advanced Features
>         Kernel driver in use: e1000e
>
> that works without any problems on 3.8.2-hardened-r1. Also, are you sure
> this is hardened issue? Try vanilla sources to check if it's broken
> there too...
>
>
> WBR,
> --
> Peter.
>
>
>