kdump hangs after triggering crash using SysRq key on RHEL-7 guest running on Xen-4.3 HVM domU.

Solution Verified - Updated -

Issue

  • RHEL-7 guest hangs when triggering crash using SysRq key with kdump enabled on a Xen4.3 host.
  • Triggering crash on RHEL-7 (Xen HVM domU guest) using SysRq hang with SysRq call trace.

Environment

  • Red Hat Enterprise Linux 7
  • kernel-3.10.0-229.1.2.el7.x86_64
  • Xen HVM domU 4.4.1-xs102077
  • kexec-tools

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