Red Hat Bugzilla – Bug 1013504
change kernel crashkernel=auto logic in RHEL7 to not scale memory based on physical memory present in the system
Last modified: 2013-11-04 03:10:40 EST
Description of problem:
Currently in rhel7, cyclic mode is set by default in makedumpfile. We need to rewrite memory requirement bits section completely as now with cyclic mode we will not append 2 bits per physical page logic and it's obsolete.
That means we should change kernel crashkernel=auto logic in rhel7 to not scale memory based on physical memory present in the system.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
Per discussion in kdump team. Let's keep the original logic, because for large memory machine adding a bit crash memory will probably improve the speed. Also there's could require more memory if multiple-cpu is supported in future.