This bug has been copied from bug #1245864 and has been proposed
to be backported to 7.2 z-stream (EUS).
Fix included in qemu-kvm-rhev-2.3.0-31.el7_2.5
Summary: After testing with the latest versions, the results below can prove that this bug has been fixed well.
1. Boot guest.
</usr/libexec/qemu-kvm command> \
-m 1G,slots=256,maxmem=40G -numa node \
2. Hotplug 10M memory 13 times using below script.
while [ $i -lt $num ]
echo "object_add memory-backend-ram,id=mem$i,size=10M"|nc -U /tmp/socket
echo "device_add pc-dimm,id=dimm$i,memdev=mem$i,slot=$i"|nc -U /tmp/socket
3. Reboot guest several times.
4. Check status of qemu. Qemu keeps working.
# echo "info version" |nc -U /tmp/socket
QEMU 2.3.0 monitor - type 'help' for more information
(qemu) info version
5. Also tested 'hotplug 256 times' with same steps 1~4. Qemu also keeps working.
So this bug has been fixed well.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.