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[Xen-devel] Dom0 Memory

  • To: <xen-devel@xxxxxxxxxxxxx>
  • From: Jonathan Tripathy <jonnyt@xxxxxxxxxxx>
  • Date: Fri, 31 Aug 2012 10:52:02 +0100
  • Delivery-date: Fri, 31 Aug 2012 09:52:25 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xen.org>

Hi Everyone,

I have set dom0_mem=2048M in grub2, set dom0 minimum memory to 2048 in xend-config (and also disabled ballooning). However, when I do "free -m" in the Dom0, I only see 1567 total RAM (xentop reports 2048ish).

Is this a known issue? I am also aware that this problem occurs in the DomUs as well, but never a discrepancy that big.

The kernel I'm using is 3.2.28. Xen is version 4.1.3 (although I'm using a hack in setup.c where I changed the order of the if block is give priority to the 802 memory map. I needed to do this as my motherboard uses UEFI. Keir made a patch for this for unstable recently).

Any help is appreciated.


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