Updated qemu-kvm-rhev packages that fix two bugs and add one enhancement are nowavailable for Red Hat Enterprise Virtualization Hypervisor 7.
KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linuxon AMD64 and Intel 64 systems.

The qemu-kvm-rhev packages provide the user-spacecomponent for running virtual machines using KVM in environments managed by RedHat Enterprise Virtualization Manager.This update fixes the following bugs:* The fix for CVE-2016-5403 caused migrating guest instances to fail with a”Virtqueue size exceeded” error message. With this update, the value of thevirtualization queue is recalculated after the migration, and the describedproblem no longer occurs. (BZ#1374623)* Due to a race condition in the virtio-blk dataplane, live migration of a guestin some cases failed with a “Virtqueue size exceeded” error message.

This updateprevents the race condition from occurring, and thus allows live migration towork more reliably. (BZ#1380320)In addition, this update adds the following enhancement:* It is now possible to specify the virtio data buffer limit between a guest andthe QEMU emulator.

To do this, change the value of the <driverrx_queue_size=’N’/> parameter in the guest’s domain XML file, where N can befrom 256 to 1024. (BZ#1375642)Users of qemu-kvm-rhev are advised to upgrade to these updated packages, whichfix these bugs.

After installing this update, shut down all running virtualmachines. Once all virtual machines have shut down, start them again for thisupdate to take effect.
Before applying this update, make sure all previously released erratarelevant to your system have been applied.For details on how to apply this update, refer to:https://access.redhat.com/articles/11258Red Hat Virtualization ( v.4 for RHEL 7)

SRPMS:
qemu-kvm-rhev-2.3.0-31.el7_2.23.src.rpmFile outdated by:  RHBA-2016:2673
    MD5: 445e1bbf6cdba60ffcfd199a7b03212dSHA-256: a020e85100802fa2a7d53d8ef32e046234e44bd8782f4b4ac9e553836bd4e2fb
 
x86_64:
libcacard-devel-rhev-2.3.0-31.el7_2.23.x86_64.rpm
    MD5: 955d22794521189bac78beb4bdfd0677SHA-256: 549ac627db645908035be76c390398512daa5afd26aa22547bb1445741a2d179
libcacard-rhev-2.3.0-31.el7_2.23.x86_64.rpm
    MD5: 8c5f07edcdabba61912a9ccd3d23c24eSHA-256: cc89da466898746bef068e21c38795d4e6b6fe6ae342068e9107c3cc28a101a3
libcacard-tools-rhev-2.3.0-31.el7_2.23.x86_64.rpm
    MD5: 96d3419c1102c1ce381837f16fbf22e8SHA-256: 0c15e94faba3736c95b20af77ee1a3ad4c1d75ed45eba5dd1b8eda353bd8c160
qemu-img-rhev-2.3.0-31.el7_2.23.x86_64.rpmFile outdated by:  RHBA-2016:2673
    MD5: aa1c1993dc405fb3be0d689ebc815f20SHA-256: 555ac212e75147ebbc5fa966455dfcad9957f8dcbd8d312a7a99bed3a8790311
qemu-kvm-common-rhev-2.3.0-31.el7_2.23.x86_64.rpmFile outdated by:  RHBA-2016:2673
    MD5: b5eb187f17a6aaf487cc4be17b93e8e0SHA-256: c6f9ece721acf2586d2d1e6d5600a0166efed27797c31334f7f8c718fdd3cb0f
qemu-kvm-rhev-2.3.0-31.el7_2.23.x86_64.rpmFile outdated by:  RHBA-2016:2673
    MD5: ef7e49de53ea0566234c450f6b6e2d5bSHA-256: ece0f9dcaba2ec275728a9435afd35970206a351a0ccbd6a21f791296737d05b
qemu-kvm-tools-rhev-2.3.0-31.el7_2.23.x86_64.rpmFile outdated by:  RHBA-2016:2673
    MD5: 2af92351f986a08ae03443bfb37327cbSHA-256: 259991a03211ab83e58ecc587f422ceff4a19fde89a9785026cb05d79eb8c402
 
(The unlinked packages above are only available from the Red Hat Network)

1374623 – RHSA-2016-1756 breaks migration of instances1380310 – match the OEM ID and OEM Table ID fields of the FADT and the RSDT to those of the SLIC [7.2.z]1380320 – Race condition during virtio-blk dataplane stop triggers “Virtqueue size exceeded”

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