[SPDK] CQ error

Ramaraj Pandian nr.pandian at samsung.com
Thu Jun 22 16:02:41 PDT 2017


When I run my app (many threads generate io and only one thread submits io to SQ) through nvmf, I get the following error:

Target (SPDK tgt app):
mlx5: msl-dsma-sierra24.msl.lab: got completion with error:
00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000
00000002 00000000 00000000 00000000
00000000 00008716 0a000486 07c9c8d3
rdma.c:1473:spdk_nvmf_rdma_poll: ***ERROR*** CQ error on Connection 0x7f8524004f30, Request 0x140209811671856 (13): RNR retry counter exceeded
session.c: 638:spdk_nvmf_session_poll: ***ERROR*** Transport poll failed for conn 0x7f8524004f30; closing connection

Initiator:

-        Hangs because of the above error

And I come across in the web suggesting to do "set up the gid in the global routing header in queue attributes"

Any insights will be appreciated.

Thanks
Ram
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