mlx5_ib_mcg_attach:3083: failed attaching QPN
Issue
- Mellanox ConnectX 5 interface in InfiniBand mode reports driver error:
mlx5_core: mlx5_cmd_check:711:(pid XXX): ATTACH_TO_MCG(0x806) op_mod(0x0) failed, status bad resource state(0x9), syndrome (0x42d2bf)
mlx5_1:mlx5_ib_mcg_attach:3083:(pid XXX): failed attaching QPN 0x999, MGID ffff:aaaa:0000:0000:0000:aaaa:eeee:8888
Environment
- Red Hat Enterprise Linux 7.6 (
kernel-3.10.0-957.5.1.el7
) and earlier - Mellanox ConnectX 5 using
mlx5
driver in InfiniBand Mode
Subscriber exclusive content
A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.