Oracle Linux and Oracle VM: Infiniband Connections Fail After Working Correctly "kernel: ibX: ipoib_cm_handle_tx_wc: failed cm @ send event (status=12, wrid=440 vend_err=81)"
(Doc ID 1986044.1)
Last updated on OCTOBER 25, 2023
Applies to:
Linux OS - Version Oracle Linux 5.0 and laterOracle VM - Version 3.2.9 to 3.2.9 [Release OVM32]
Oracle Cloud Infrastructure - Version N/A and later
Linux x86
Linux x86-64
Symptoms
After a period of error-free activity, the InfiniBand (IB) traffic slows to zero. Examining the /var/log/messages file shows a flood of:
alerts.
Rebooting the client does not correct the issue.
Changes
None
Cause
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In this Document
| Symptoms |
| Changes |
| Cause |
| Solution |
| References |