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Oracle Linux: Infiniband Device Occasionally Shows "failed To Send RTU" (Doc ID 2496719.1)

Last updated on JUNE 24, 2020

Applies to:

Linux OS - Version Oracle Linux 6.6 to Oracle Linux 6.10 [Release OL6U6 to OL6U10]
Information in this document applies to any platform.

Symptoms

 Occasionally some warnings are logged onto /var/log/messagss:

/var/log/messages
2018-12-15T21:43:30 hostname kernel: [kern.warning] [4217150.723935] ib0: failed to send RTU: -22
2018-12-15T21:43:32 hostname kernel: [kern.warning] [4217152.112106] ib0: failed to send RTU: -22
2018-12-20T21:56:27 hostname kernel: [kern.warning] [3541934.250189] ib0: failed to send RTU: -22

 
However, there are no error-level messages reported.

Cause

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In this Document
Symptoms
Cause
Solution


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