Oracle Linux: Many "TX DMA Map Failed" Messages are Logged (Doc ID 2068615.1)

Last updated on OCTOBER 27, 2015

Applies to:

Linux OS - Version Oracle Linux 5.3 to Oracle Linux 6.6 with Unbreakable Enterprise Kernel [3.8.13] [Release OL5U3 to OL6U6]
Linux x86-64


There are messages "DMA map failed" from Intel Network Interface card ( NIC ) driver in /var/log/messages, and occasionally its network transportation speed could be slow.



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