Why is flush-0:XY process consuming CPU?

Solution Verified - Updated -

Issue

In top output I can see process flush-0:XY consuming a lot of CPU:

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
12345 root      20   0     0    0    0 R 74.3  0.0   0:19.99 flush-0:XY

Environment

  • Red Hat Enterprise Linux 6

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