Why does my Xen dom0 detect only 32GB of RAM?
Issue
- While installing xen on hardware with more than 32GB memory the OS detects only 32GB memory.
dmesg
output shows all memory present, butfree
output does not.- Red Hat Enterprise Linux (RHEL) does not show total available memory when booting into a xen kernel.
Environment
- Red Hat Enterprise Linux 5.3+
- Xen kernel
Subscriber exclusive content
A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.