My Oracle Support Banner

Oracle VM: MTU error - swiotlb buffer is full (Doc ID 1962450.1)

Last updated on MAY 26, 2021

Applies to:

Oracle VM - Version 3.3.1 and later
Oracle Cloud Infrastructure - Version N/A and later
Linux x86-64


Please note the workaround may or may not work on other setups as we are still determining whether it is a code bug in the kernel or problem from the Broadcom side.

Hence we have captured a few important information (on which this issue was reproduced) of the OVM Setup as below:

BNX module used is bnx2x

Module Version - 1.78.80

Firmware Version - bc 7.10.37

PHY Server: HP ProLiant BL465c Gen8


Cannot change the MTU size of a bond in an OVS server in 3.3.1. While changing the MTU, gets the following error:


To view full details, sign in with your My Oracle Support account.

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

In this Document

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.