Using makedumpfile to drop unneccessary pages during vmcore write is slower when -d30 or -d31 is specified and huge pages are reserved

Solution Verified - Updated -

Issue

  • It seems -d 30 && -d 31 with makedumpfile is much slower with hugepages reserved. Is this expected behaviour?

Environment

  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 5
  • kexec-tools

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.

Current Customers and Partners

Log in for full access

Log In

New to Red Hat?

Learn more about Red Hat subscriptions

Using a Red Hat product through a public cloud?

How to access this content