Kdump takes a long time to capture the vmcore when "makedumpfile -c" compression algorithm is used.

Solution In Progress - Updated -

Issue

  • Kdump takes around ~50-60 minutes to capture a vmcore when "makedumpfile -c" compression algorithm is used.

Environment

  • Red Hat Enterprise Linux 7
  • FBOxxxx Hardware By Alcatel-Lucent
  • Storage: software raid (mdraid) level 1 setup
  • kexec-tools-2.0.15-33.el7
  • kexec-tools-2.0.15-21.el7
  • kexec-tools-2.0.15-13.el7

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