Technical note added. If any revisions are required, please edit the "Technical Notes" field accordingly. All revisions will be proofread by the Engineering Content Services team. New Contents: In the kvm kernel module, some internal KVM memory slots were incorrectly being handled by copy-on-write after a fork() function call, which caused issues when qemu-kvm ran child processes. This update fixes the handling of internal KVM memory slots on fork() to avoid those issues.
verified on # rpm -q kvm kvm-83-207.el5 boot guest with: /usr/libexec/qemu-kvm -name 'vm1' -monitor stdio -drive file='/home/autotest-devel/client/tests/kvm/images/win2008-64-virtio.qcow2',index=0,if=virtio,media=disk,cache=none,boot=on,format=qcow2 -net nic,vlan=0,model=virtio,macaddr='9a:30:70:9c:34:b4' -net tap,vlan=0,ifname='virtio_xxx_5900',script='/home/autotest-devel/client/tests/kvm/scripts/qemu-ifup-switch',downscript='no' -m 2048 -smp 2 -soundhw ac97 -vnc :0 -rtc-td-hack -M rhel5.6.0 -usbdevice tablet migrate with: migrate "exec:gzip -c > /home/mig-xxxx1" boot the dst guest with: /usr/libexec/qemu-kvm -name 'vm1' -monitor stdio -drive file='/home/autotest-devel/client/tests/kvm/images/win2008-64-virtio.qcow2',index=0,if=virtio,media=disk,cache=none,boot=on,format=qcow2 -net nic,vlan=0,model=virtio,macaddr='9a:30:70:9c:34:b4' -net tap,vlan=0,ifname='virtio_xxx_5900',script='/home/autotest-devel/client/tests/kvm/scripts/qemu-ifup-switch',downscript='no' -m 2048 -smp 2 -soundhw ac97 -vnc :0 -rtc-td-hack -M rhel5.6.0 -usbdevice tablet -incoming "exec:gzip -c -d /home/xxxmig" migration finished good, guest is good, too
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on therefore solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHSA-2011-0028.html