Comment 67 for bug 1913421

Test III:
no extra MP and no MP stacking if already executable

Bionic
ubuntu@qemu-module-bionic:~$ sudo umount /var/run/qemu/; sudo rm -rf /var/run/qemu; sudo mount -o remount,exec /run
ubuntu@qemu-module-bionic:~$ find /var/run/qemu/; findmnt -T /var/run/qemu
find: ‘/var/run/qemu/’: No such file or directory
ubuntu@qemu-module-bionic:~$ sudo apt install --reinstall qemu-block-extra
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 0 not upgraded.
Need to get 41.8 kB of archives.
After this operation, 0 B of additional disk space will be used.
Get:1 http://archive.ubuntu.com/ubuntu bionic-proposed/main amd64 qemu-block-extra amd64 1:2.11+dfsg-1ubuntu7.38 [41.8 kB]
Fetched 41.8 kB in 0s (138 kB/s)
(Reading database ... 125824 files and directories currently installed.)
Preparing to unpack .../qemu-block-extra_1%3a2.11+dfsg-1ubuntu7.38_amd64.deb ...
Unpacking qemu-block-extra:amd64 (1:2.11+dfsg-1ubuntu7.38) over (1:2.11+dfsg-1ubuntu7.38) ...
Setting up qemu-block-extra:amd64 (1:2.11+dfsg-1ubuntu7.38) ...
ubuntu@qemu-module-bionic:~$ find /var/run/qemu/; findmnt -T /var/run/qemu
/var/run/qemu/
/var/run/qemu/_Debian_1_2.11+dfsg-1ubuntu7.38_
/var/run/qemu/_Debian_1_2.11+dfsg-1ubuntu7.38_/block-rbd.so
/var/run/qemu/_Debian_1_2.11+dfsg-1ubuntu7.38_/block-iscsi.so
/var/run/qemu/README
/var/run/qemu/exec
TARGET SOURCE FSTYPE OPTIONS
/run tmpfs tmpfs rw,nosuid,relatime,size=204068k,mode=755

Focal
ubuntu@qemu-module-focal:~$ sudo umount /var/run/qemu/; sudo rm -rf /var/run/qemu; sudo mount -o remount,exec /run
ubuntu@qemu-module-focal:~$ find /var/run/qemu/; findmnt -T /var/run/qemu
find: ‘/var/run/qemu/’: No such file or directory
ubuntu@qemu-module-focal:~$ sudo apt install --reinstall qemu-block-extra
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 0 not upgraded.
Need to get 54.8 kB of archives.
After this operation, 0 B of additional disk space will be used.
Get:1 http://archive.ubuntu.com/ubuntu focal-proposed/main amd64 qemu-block-extra amd64 1:4.2-3ubuntu6.18 [54.8 kB]
Fetched 54.8 kB in 0s (173 kB/s)
(Reading database ... 142014 files and directories currently installed.)
Preparing to unpack .../qemu-block-extra_1%3a4.2-3ubuntu6.18_amd64.deb ...
Unpacking qemu-block-extra:amd64 (1:4.2-3ubuntu6.18) over (1:4.2-3ubuntu6.18) ...
Setting up qemu-block-extra:amd64 (1:4.2-3ubuntu6.18) ...
ubuntu@qemu-module-focal:~$ find /var/run/qemu/; findmnt -T /var/run/qemu
/var/run/qemu/
/var/run/qemu/Debian_1_4.2-3ubuntu6.18
/var/run/qemu/Debian_1_4.2-3ubuntu6.18/block-ssh.so
/var/run/qemu/Debian_1_4.2-3ubuntu6.18/block-rbd.so
/var/run/qemu/Debian_1_4.2-3ubuntu6.18/block-iscsi.so
/var/run/qemu/README
/var/run/qemu/exec
TARGET SOURCE FSTYPE OPTIONS
/run tmpfs tmpfs rw,nosuid,nodev,relatime,size=203516k,mode=755

Hirsute
ubuntu@qemu-module-hirsute:~$ sudo umount /var/run/qemu/; sudo rm -rf /var/run/qemu; sudo mount -o remount,exec /run
ubuntu@qemu-module-hirsute:~$ find /var/run/qemu/; findmnt -T /var/run/qemu
find: ‘/var/run/qemu/’: No such file or directory
ubuntu@qemu-module-hirsute:~$ sudo apt install --reinstall qemu-block-extra
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
The following package was automatically installed and is no longer required:
  net-tools
Use 'sudo apt autoremove' to remove it.
0 upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 0 not upgraded.
Need to get 50.3 kB of archives.
After this operation, 0 B of additional disk space will be used.
Get:1 http://archive.ubuntu.com/ubuntu hirsute-proposed/main amd64 qemu-block-extra amd64 1:5.2+dfsg-9ubuntu3.2 [50.3 kB]
Fetched 50.3 kB in 0s (159 kB/s)
(Reading database ... 148244 files and directories currently installed.)
Preparing to unpack .../qemu-block-extra_1%3a5.2+dfsg-9ubuntu3.2_amd64.deb ...
Unpacking qemu-block-extra (1:5.2+dfsg-9ubuntu3.2) over (1:5.2+dfsg-9ubuntu3.2) ...
Setting up qemu-block-extra (1:5.2+dfsg-9ubuntu3.2) ...
Scanning processes...
Scanning linux images...

No services need to be restarted.

No containers need to be restarted.

No user sessions are running outdated binaries.
ubuntu@qemu-module-hirsute:~$ find /var/run/qemu/; findmnt -T /var/run/qemu
/var/run/qemu/
/var/run/qemu/Debian_1_5.2+dfsg-9ubuntu3.2
/var/run/qemu/Debian_1_5.2+dfsg-9ubuntu3.2/block-ssh.so
/var/run/qemu/Debian_1_5.2+dfsg-9ubuntu3.2/block-rbd.so
/var/run/qemu/Debian_1_5.2+dfsg-9ubuntu3.2/block-iscsi.so
/var/run/qemu/README
/var/run/qemu/exec
TARGET SOURCE FSTYPE OPTIONS
/run tmpfs tmpfs rw,nosuid,nodev,relatime,size=202588k,mode=755,inode64