Exadata Oracle VM - IB network not started on guest "slave is currently in the middle of FLR. retrying"

(Doc ID 2316320.1)

Last updated on OCTOBER 12, 2017

Applies to:

Oracle VM - Version 3.2.1 and later
Linux x86-64

Symptoms

On Exadata with Oracle VM server installed, IB network's are not starting on guest and it reports following error's in system log file, few other guest which are attached with IB network's works fine with same OS configuration.

And guest messages shows below messages:

Sep 27 10:47:36 vm-guest kernel: mlx4_core 0000:00:04.0: slave is currently in the middle of FLR. retrying...(try num:10)
Sep 27 10:47:36 vm-guest kernel: mlx4_core 0000:00:04.0: Communication channel is not idle. my toggle is 0 (cmd:0x1)
Sep 27 10:47:36 vm-guest kernel: mlx4_core 0000:00:04.0: slave driver version is not supported by the master
Sep 27 10:47:36 vm-guest kernel: mlx4_core 0000:00:04.0: Communication channel is not idle. my toggle is 0 (cmd:0x1)
Sep 27 10:47:36 vm-guest kernel: mlx4_core 0000:00:04.0: Failed to initialize slave 

 

 

Changes

 

Cause

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