Oracle Linux, VM: After Patching To UEK2 Kernel 2.6.39-400.250.6.el5uek Transfers Over InfiniBand (IB) Stall

(Doc ID 2167471.1)

Last updated on AUGUST 22, 2016

Applies to:

Linux OS - Version Oracle Linux 5.0 to Oracle Linux 5.11 with Unbreakable Enterprise Kernel [2.6.39] [Release OL5 to OL5U11]
Information in this document applies to any platform.


After patching, customer is facing performance degradation issues using scp(1).


 Prior to patching, GRO was off. After patching Ethernet network card had Generic Receive Offload (GRO) option enabled.


Sign In with your My Oracle Support account

Don't have a My Oracle Support account? Click to get started

My Oracle Support provides customers with access to over a
Million Knowledge Articles and hundreds of Community platforms