Prior to the fix following the tests steps: Focal Jun 23 09:10:03 focal systemd[1]: Started QEMU Guest Agent. Jun 23 09:10:12 focal qemu-ga[2212]: info: guest-shutdown called, mode: (null) Jun 23 09:10:12 focal qemu-ga[2212]: ** Jun 23 09:10:12 focal qemu-ga[2212]: ERROR:/build/qemu-FC5BvZ/qemu-4.2/qga/main.c:532:send_response: assertion failed: (rsp && s->channel) Jun 23 09:10:12 focal qemu-ga[2212]: Bail out! ERROR:/build/qemu-FC5BvZ/qemu-4.2/qga/main.c:532:send_response: assertion failed: (rsp && s->channel) Jun 23 09:10:12 focal systemd[1]: Stopping QEMU Guest Agent... Eoan Jun 23 09:09:56 eoan systemd[1]: Started QEMU Guest Agent. Jun 23 09:10:17 eoan qemu-ga[2177]: info: guest-shutdown called, mode: (null) Jun 23 09:10:17 eoan qemu-ga[2177]: ** Jun 23 09:10:17 eoan qemu-ga[2177]: ERROR:/build/qemu-alOsBA/qemu-4.0+dfsg/qga/main.c:532:send_response: assertion failed: (rsp && s->channel) Jun 23 09:10:17 eoan qemu-ga[2177]: Bail out! ERROR:/build/qemu-alOsBA/qemu-4.0+dfsg/qga/main.c:532:send_response: assertion failed: (rsp && s->channel) Jun 23 09:10:17 eoan systemd[1]: Stopping QEMU Guest Agent... Jun 23 09:10:17 eoan systemd[1]: qemu-guest-agent.service: Main process exited, code=dumped, status=6/ABRT Upgrading to -proposed Focal ubuntu@focal:~$ sudo apt install qemu-guest-agent Reading package lists... Done Building dependency tree Reading state information... Done The following packages will be upgraded: qemu-guest-agent 1 upgraded, 0 newly installed, 0 to remove and 22 not upgraded. Need to get 194 kB of archives. After this operation, 0 B of additional disk space will be used. Get:1 http://archive.ubuntu.com/ubuntu focal-proposed/universe amd64 qemu-guest-agent amd64 1:4.2-3ubuntu6.3 [194 kB] Fetched 194 kB in 0s (1185 kB/s) (Reading database ... 63108 files and directories currently installed.) Preparing to unpack .../qemu-guest-agent_1%3a4.2-3ubuntu6.3_amd64.deb ... Unpacking qemu-guest-agent (1:4.2-3ubuntu6.3) over (1:4.2-3ubuntu6.2) ... Setting up qemu-guest-agent (1:4.2-3ubuntu6.3) ... Processing triggers for man-db (2.9.1-1) ... Processing triggers for systemd (245.4-4ubuntu3.1) ... Eoan ubuntu@eoan:~$ sudo apt install qemu-guest-agent Reading package lists... Done Building dependency tree Reading state information... Done The following packages will be upgraded: qemu-guest-agent 1 upgraded, 0 newly installed, 0 to remove and 25 not upgraded. Need to get 200 kB of archives. After this operation, 0 B of additional disk space will be used. Get:1 http://archive.ubuntu.com/ubuntu eoan-proposed/universe amd64 qemu-guest-agent amd64 1:4.0+dfsg-0ubuntu9.8 [200 kB] Fetched 200 kB in 0s (1284 kB/s) (Reading database ... 61964 files and directories currently installed.) Preparing to unpack .../qemu-guest-agent_1%3a4.0+dfsg-0ubuntu9.8_amd64.deb ... Unpacking qemu-guest-agent (1:4.0+dfsg-0ubuntu9.8) over (1:4.0+dfsg-0ubuntu9.7) ... Setting up qemu-guest-agent (1:4.0+dfsg-0ubuntu9.8) ... Processing triggers for man-db (2.8.7-3) ... Processing triggers for systemd (242-7ubuntu3.9) ... Newly testing the shutdown feature: Focal -- Reboot -- Jun 23 09:10:42 focal systemd[1]: Started QEMU Guest Agent. Jun 23 09:12:49 focal systemd[1]: Stopping QEMU Guest Agent... Jun 23 09:12:49 focal systemd[1]: qemu-guest-agent.service: Succeeded. Jun 23 09:12:49 focal systemd[1]: Stopped QEMU Guest Agent. Jun 23 09:12:49 focal systemd[1]: Started QEMU Guest Agent. Jun 23 09:13:23 focal qemu-ga[1454]: info: guest-shutdown called, mode: (null) Jun 23 09:13:23 focal systemd[1]: Stopping QEMU Guest Agent... Jun 23 09:13:23 focal systemd[1]: qemu-guest-agent.service: Succeeded. Jun 23 09:13:23 focal systemd[1]: Stopped QEMU Guest Agent. -- Reboot -- Eoan: -- Reboot -- Jun 23 09:10:44 eoan systemd[1]: Started QEMU Guest Agent. Jun 23 09:12:41 eoan systemd[1]: Stopping QEMU Guest Agent... Jun 23 09:12:41 eoan systemd[1]: qemu-guest-agent.service: Succeeded. Jun 23 09:12:41 eoan systemd[1]: Stopped QEMU Guest Agent. Jun 23 09:12:41 eoan systemd[1]: Started QEMU Guest Agent. Jun 23 09:13:25 eoan qemu-ga[1458]: info: guest-shutdown called, mode: (null) Jun 23 09:13:25 eoan systemd[1]: Stopping QEMU Guest Agent... Jun 23 09:13:25 eoan systemd[1]: qemu-guest-agent.service: Succeeded. Jun 23 09:13:25 eoan systemd[1]: Stopped QEMU Guest Agent. -- Reboot -- Marking as verified for both releases