qemu-kvm guests panic due to hung task time-out caused by a missing memory barrier in QEMU's AIO code
Issue
- qemu-kvm guests panic due to hung task time-out.
- Guests do not restart after the panic.
virsh dumpinitiated on the hypervisor after the panic, does not complete.
Environment
- Red Hat Enterprise Linux.
- Red Hat OpenStack Platform.
- Red Hat Enterprise Virtualisation.
qemu-kvm-rhev-2.1.2-23.el7_1.9.x86_64
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