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Kernel Panic On OVS after hitting the Bug "kernel BUG at drivers/pci/msi.c:395!" (Doc ID 2330295.1)

Last updated on AUGUST 04, 2018

Applies to:

Oracle VM - Version 3.4.4 and later
x86_64

Symptoms

On a dual-socket system, when trying to configure bonding, the OVS restarts when it tries to bring up bond interface with the following error:

kernel BUG at drivers/pci/msi.c:395! and below is the screen shot for the error being received:

But, OVS server boots up without any exceptions after the following changes:

1. If we disable one of the Ethernet port which was used in bond configuration.

Or

2. When we reduced the number of cores per socket.

Cause

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