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-rw-r--r--pkgs/os-specific/linux/kernel/linux-2.6.32.nix1
1 files changed, 1 insertions, 0 deletions
diff --git a/pkgs/os-specific/linux/kernel/linux-2.6.32.nix b/pkgs/os-specific/linux/kernel/linux-2.6.32.nix
index 7ae765ad1d656..eeb5988ed1671 100644
--- a/pkgs/os-specific/linux/kernel/linux-2.6.32.nix
+++ b/pkgs/os-specific/linux/kernel/linux-2.6.32.nix
@@ -31,6 +31,7 @@ import ./generic.nix (
         KVM_CLOCK y
         KVM_GUEST y
         XEN y
+        KSM y
 
         # We need 64 GB (PAE) support for Xen guest support.
         HIGHMEM64G? y