Kdump is not working on Red Hat Enterprise Linux 5 systems with 1TB of memory or more

Updated -


  • The kdump utility in Red Hat Enterprise Linux 5 (RHEL 5) fails on systems with 1TB of memory or more.


  • RHEL5

Root Cause

  • The RHEL 5 kernel can address up to 40 bits (1 TB) of memory; any pages beyond that limit will be discarded. The /proc/vmcore entry will not list any memory above the 40-bit boundary due...

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