CentOS6 And Xen4 Dom0 Memory Allocation

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Replying to an old thread.. two things:

1) you might need to use “dom0_mem 48M,max:2048M” parameter for Xen hypervisor to give the maximum upper limit for dom0.

2) (Earlier) there was a bug in the dom0 kernel code where it allocated wrong amount of memory; you had to use “mem 48M” option for Linux dom0 kernel in addition to the dom0_mem= option for Xen to get the correct amount of memory for dom0.

— Pasi

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