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[Xen-changelog] [xen-unstable] xend: Balloon 4MB memory slop when creating a domain



# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1238582791 -3600
# Node ID 5759a5766ccac5612f74567e2427ac8e7e629e16
# Parent  9c552123b130afa2f6477bdf9ef5a00e709fcf0d
xend: Balloon 4MB memory slop when creating a domain

I've found some problems when running 2 guests with and then trying
to install a new machine (no matter whether using virt-manager or
virt-install).

Signed-off-by: Michal Novotny <minovotn@xxxxxxxxxx>
---
 tools/python/xen/xend/XendDomainInfo.py |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff -r 9c552123b130 -r 5759a5766cca tools/python/xen/xend/XendDomainInfo.py
--- a/tools/python/xen/xend/XendDomainInfo.py   Wed Apr 01 11:45:22 2009 +0100
+++ b/tools/python/xen/xend/XendDomainInfo.py   Wed Apr 01 11:46:31 2009 +0100
@@ -2253,8 +2253,9 @@ class XendDomainInfo:
         # There is an implicit memory overhead for any domain creation. This
         # overhead is greater for some types of domain than others. For
         # example, an x86 HVM domain will have a default shadow-pagetable
-        # allocation of 1MB. We free up 2MB here to be on the safe side.
-        balloon.free(2*1024, self) # 2MB should be plenty
+        # allocation of 1MB. We free up 4MB here to be on the safe side.
+        # 2MB memory allocation was not enough in some cases, so it's 4MB now
+        balloon.free(4*1024, self) # 4MB should be plenty
 
         ssidref = 0
         if security.on() == xsconstants.XS_POLICY_USE:

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