Wind River Support Network


LIN5-5792 : Issues with e1000e driver in intel-xeon-core-32 BSP using WRL5.0.1

Created: Aug 20, 2013    Updated: Dec 19, 2017
Resolved Date: Oct 27, 2013
Found In Version: 5.0.1
Fix Version:
Severity: Severe
Applicable for: Wind River Linux 5
Component/s: Kernel
Host OS: Linux Ubuntu
Architecture: IA32


There are two major symptoms with the driver.

First, the driver is not loading if we PXE boot the image, we get the following during probing, the error being the last line where it fails to load.

[    0.311338] e1000e: Intel(R) PRO/1000 Network Driver - 1.9.5-k
[    0.312288] e1000e: Copyright(c) 1999 - 2012 Intel Corporation.
[    0.313266] e1000e 0000:00:19.0: setting latency timer to 64
[    0.314235] e1000e 0000:00:19.0: (unregistered net_device): Interrupt Throttling Rate (ints/sec) set to dynamic conservative mode
[    0.316166] e1000e 0000:00:19.0: (unregistered net_device): Failed to initialize MSI interrupts.  Falling back to legacy interrupts.
[    0.319286] e1000e: probe of 0000:00:19.0 failed with error -2

If we boot from the hard drive, the driver loads, and the interface comes up, but every 30-45 seconds the link state goes down, and comes back up a few seconds later:

[   41.039502] e1000e: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[   41.040700] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[   43.940907] ADDRCONF(NETDEV_UP): eth0: link is not ready
[   44.316003] e1000e: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx

Steps to Reproduce

The symptoms are reproducible running on the Dell T7600 target we are using for Security Fabric project, either running natively or as an unmodified guest under Hypervisor.  
The 7600 contains a Two Four Core XEON E5-2650, 2.0GHz processors.
(The same symptoms also happen for team members using a Dell 6530 laptop as a target)

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