The command 'ceph -s' cause CPU system upto 100.00%

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The ceph version is Octopus.
I enabled the rdma. And setting is the following.

[global]
ms_type = async+rdma
ms_public_type = async+rdma
ms_cluster_type = async+rdma
ms_async_rdma_device_name = mlx5_0
ms_async_rdma_polling_us = 0
ms_async_rdma_local_gid = 0000:0000:0000:0000:0000:ffff:a9a9:a961
ms_async_rdma_roce_ver = 1


When I execute 'ceph -s', the CPU system is 100%.

The sar command info.
11:16:24 AM     CPU     %user     %nice   %system   %iowait    %steal     %idle
11:16:25 AM     all         0.00        0.00     100.00       0.00        0.00        0.00

The top command info.
   PID   USER      PR  NI    VIRT    RES       SHR S   %CPU %MEM     TIME+ COMMAND
  1205  root      20   0  586428      4          4     S   56.5    0.0  48:34.46 tuned
    46    root      20   0       0         0           0     R   55.5    0.0  71:12.94 kswapd0
     1     root      20   0  194120    100     100     R   50.0    0.0  56:18.33 systemd
  1193   root      20   0  226720      0          0     S   37.0    0.0  37:18.04 rsyslogd
179952 root      20   0 1936448 324240      0     S   34.5    4.1   0:12.07 ceph
   875    root      20   0   21544    248      244     R   23.9    0.0  23:19.21 irqbalance


I would very much appreciate any advice.

Best Regards,
GHui
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