Kernel does not honour option "transparent_hugepage=always" when little RAM is installed to the system
Issue
- Appending transparent_hugepage=always at kernel command line in grub.conf does not work, transparent_hugepage remains disabled:
# cat /sys/kernel/mm/redhat_transparent_hugepage/enabled
always [never]
- However following command enables it:
echo always > /sys/kernel/mm/redhat_transparent_hugepage/enabled
Environment
- Red Hat Enterprise Linux 6
- Architecture x86_64
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