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Date: Thu, 30 May 2013 11:46:04 -0400
From: Luiz Capitulino <lcapitulino@redhat.com>
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Subject: [Qemu-devel] [BUG]: kvm_set_phys_mem: error unregistering
 overlapping slot: Invalid argument
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To: jordan.l.justen@intel.com
Cc: pbonzini@redhat.com, qemu-devel <qemu-devel@nongnu.org>, xiaoguangrong@linux.vnet.ibm.com

The culprit is commit:

commit 235e8982ad393e5611cb892df54881c872eea9e1
Author: Jordan Justen <jordan.l.justen@intel.com>
Date:   Wed May 29 01:27:26 2013 -0700

    kvm: support using KVM_MEM_READONLY flag for regions

I'm running 3.9.2-200.fc18, btw. And, error checking is missing on the
first call to kvm_vm_ioctl().