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Infiniband (IB) switch shows" Failed To Join Non-existing Multicast Group" (Doc ID 2405519.1)

Last updated on AUGUST 04, 2018

Applies to:

Linux OS - Version Oracle Linux 6.7 with Unbreakable Enterprise Kernel [4.1.12] and later
Linux x86-64

Symptoms

 The Infiniband (IB) switch continues to show "Failed To Join Non-existing Multicast Group" messages after some IB network maintenance was performed.

Apr 16 07:53:49 696118 [B6588B70] 0x02 -> mcmr_rcv_join_mgrp: Port 0x0010e00001d2b3c9 (hostname mlx4_0) failed to join non-existing multicast group with MGID ff12:e01b:7::, insufficient components specified for implicit create (comp_mask 0x10003)
Apr 16 07:53:49 698186 [B6D89B70] 0x02 -> mcmr_rcv_join_mgrp: Port 0x0010e00001d2b3c9 (hostname mlx4_0) failed to join non-existing multicast group with MGID ff12:e01b:6::, insufficient components specified for implicit create (comp_mask 0x10003)
Apr 16 07:53:53 743705 [B6588B70] 0x02 -> mcmr_rcv_join_mgrp: Port 0x0010e00001d2c4e9 (hostname mlx4_0) failed to join non-existing multicast group with MGID ff12:e01b:6::, insufficient components specified for implicit create (comp_mask 0x10003)
Apr 16 07:53:53 744571 [B6D89B70] 0x02 -> mcmr_rcv_join_mgrp: Port 0x0010e00001d2c4e9 (hostname mlx4_0) failed to join non-existing multicast group with MGID ff12:e01b:7::, insufficient components specified for implicit create (comp_mask 0x10003)

Cause

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