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https://rhn.redhat.com/errata/RHBA-2016-2673.html
Description of problem: Client info doesn't vanish after client disconnect when using vnc display Version-Release number of selected component (if applicable): qemu-kvm-rhev-2.6.0-11.el7.x86_64 How reproducible: 100% Steps to Reproduce: 1.Use vnc with cmd: # /usr/libexec/qemu-kvm -vnc :0 -monitor stdio -qmp tcp:localhost:4444,server,nowait 2.Connect vnc display from local: # vncviewer 127.0.0.1:5900 -Shared & And query vnc client info from hmp: { "execute": "query-vnc" } 3.Establish another connection to vnc display from local: # vncviewer 127.0.0.1:5900 & Client from step 2 is disconnected and query vnc client info again from hmp: { "execute": "query-vnc" } Actual results: After step 3, both vnc clients info can be queried from hmp: { "execute": "query-vnc" } {"return": {"enabled": true, "auth": "none", "family": "ipv4", "clients": [{"family": "ipv4", "service": "57104", "host": "10.66.10.63", "websocket": false}, {"family": "ipv4", "service": "57100", "host": "10.66.10.63", "websocket": false}], "service": "5900", "host": "0.0.0.0"}} Expected results: After step 3, only client info from step 3 exists and can be queried from hmp, this should like: { "execute": "query-vnc" } {"return": {"enabled": true, "auth": "none", "family": "ipv4", "clients": [{"family": "ipv4", "service": "57104", "host": "10.66.10.63", "websocket": false}], "service": "5900", "host": "0.0.0.0"}} Additional info: Try same steps on qemu-kvm-rhev-2.3.0-31.el7_2.16.x86_64, no such issue happen. After step2, query from hmp: { "execute": "query-vnc" } {"return": {"enabled": true, "auth": "none", "family": "ipv4", "clients": [{"family": "ipv4", "service": "37606", "host": "127.0.0.1", "websocket": false}], "service": "5900", "host": "0.0.0.0"}} After step 3, query from hmp: { "execute": "query-vnc" } {"return": {"enabled": true, "auth": "none", "family": "ipv4", "clients": [{"family": "ipv4", "service": "37608", "host": "127.0.0.1", "websocket": false}], "service": "5900", "host": "0.0.0.0"}}