While running xfstests on an NFS/RDMA mount, I see this in
the client's /var/log/messages multiple times:
Jun 22 14:13:45 manet kernel: mlx5_0:dump_cqe:275:(pid 0): dump error cqe
Jun 22 14:13:45 manet kernel: 00000000 00000000 00000000 00000000
Jun 22 14:13:45 manet kernel: 00000000 00000000 00000000 00000000
Jun 22 14:13:45 manet kernel: 00000000 00000000 00000000 00000000
Jun 22 14:13:45 manet kernel: 00000000 08007806 250000cd 024027d3
Jun 22 14:13:45 manet kernel: rpcrdma: fastreg: memory management operation error (6/0x78)
As far as I can tell the client is able to recover and continue
the test. However, this error is not supposed to happen in normal
operation.
This is with a Mellanox CX4 in RoCEv1 mode, v4.12-rc2.
Is this a regression? What kernel version are you running?
FW revision?
Is the below commit applied?
commit 6e8484c5cf07c7ee632587e98c1a12d319dacb7c
Author: Max Gurtovoy <maxg@xxxxxxxxxxxx>
Date: Sun May 28 10:53:11 2017 +0300
RDMA/mlx5: set UMR wqe fence according to HCA cap
Cache the needed umr_fence and set the wqe ctrl segmennt
accordingly.
Signed-off-by: Max Gurtovoy <maxg@xxxxxxxxxxxx>
Acked-by: Leon Romanovsky <leon@xxxxxxxxxx>
Reviewed-by: Sagi Grimberg <sagi@xxxxxxxxxxx>
Signed-off-by: Doug Ledford <dledford@xxxxxxxxxx>
This is the only thing that changed in that area
lately...
Can you try without it?
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