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b92a003710
Change done by commit f309db1f4d51009bad0d32e12efc75530b66836b wrongly assumes that qemu can start with a combination of NUMA nodes specified with the "memdev" option and the appropriate backends, and the legacy way by specifying only "mem" as a size argument. QEMU rejects such commandline though: $ /usr/bin/qemu-system-x86_64 -S -M pc -m 1024 -smp 2 \ -numa node,nodeid=0,cpus=0,mem=256 \ -object memory-backend-ram,id=ram-node1,size=12345 \ -numa node,nodeid=1,cpus=1,memdev=ram-node1 qemu-system-x86_64: -numa node,nodeid=1,cpus=1,memdev=ram-node1: qemu: memdev option must be specified for either all or no nodes To fix this issue we need to check if any of the nodes requires the new definition with the backend and if so, then all other nodes have to use it too. Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1182467