On 04/03/2012 07:49 AM, Aleksey Chudov wrote: > Hello, > > > > I have few identical low end servers with the following integrated NICs: > > > > 02:00.0 Ethernet controller: Intel Corporation 82574L Gigabit Network > Connection > > 03:00.0 Ethernet controller: Intel Corporation 82574L Gigabit Network > Connection > > > > On all servers is constantly increasing counters rx_errors, rx_length_errors > and rx_short_length_errors. > > > I tried the following settings 82574L: > > * Increase Rx and Tx buffers from 256 to 4096 bytes > > * Manual distribution of interrupts among the processors (IRQ Affinity) > > * Disable Active State Power Management (ASPM) in the BIOS and Kernel > > * Update kernel from 2.6.34 to 2.6.39 > > * Different e1000e drivers 1.0.2-k2, 1.3.10-k2, 1.6.3-NAPI, 1.9.5-NAPI > > * Driver settings InterruptThrottleRate = 1,1 > > * Legacy Interrupt Mode IntMode = 1,1 > > * Disable LRO, GRO, GSO, Autonegotiate with ethtool > > * Increase memory limits of the Linux networking stack > > > It seems that the number of errors does not depend on configuration or > driver version or the amount of traffic. > > > > Then I tied to insert in one server additional NIC 82576 connected to the > same switch through the same patch cable and errors completely disappeared.
If you still have this system available for testing, please try completely powering down the system for a minute or two (a reboot is not sufficient) and see if the problems at least temporarily go away after powering back up. Also, try 'ethtool -t' on the interface. We saw some strange errors that were 'fixed' by these actions..but we never found the root cause and mostly we just stopped using those NICs... Thanks, Ben -- Ben Greear <[email protected]> Candela Technologies Inc http://www.candelatech.com ------------------------------------------------------------------------------ Better than sec? Nothing is better than sec when it comes to monitoring Big Data applications. Try Boundary one-second resolution app monitoring today. Free. http://p.sf.net/sfu/Boundary-dev2dev _______________________________________________ E1000-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/e1000-devel To learn more about Intel® Ethernet, visit http://communities.intel.com/community/wired
