Note that these come in pairs, the udev seems to be trying to look at the device the balloon driver is trying to make, so this makes sense:
[ 240.608612] INFO: task kworker/0:2:861 blocked for more than 120 seconds.
[ 240.608705] INFO: task systemd-udevd:1906 blocked for more than 120 seconds.
[ 360.633541] INFO: task kworker/0:2:861 blocked for more than 120 seconds.
[ 360.633724] INFO: task systemd-udevd:1906 blocked for more than 120 seconds.
[ 480.638445] INFO: task kworker/0:2:861 blocked for more than 120 seconds.
[ 480.638628] INFO: task systemd-udevd:1906 blocked for more than 120 seconds.
[ 600.639348] INFO: task kworker/0:2:861 blocked for more than 120 seconds.
[ 600.639531] INFO: task systemd-udevd:1906 blocked for more than 120 seconds.
[ 720.652251] INFO: task kworker/0:2:861 blocked for more than 120 seconds.
[ 720.652434] INFO: task systemd-udevd:1906 blocked for more than 120 seconds.
Can you confirm whether this stops at the 720s point or does it continue indefinatly.
Note that these come in pairs, the udev seems to be trying to look at the device the balloon driver is trying to make, so this makes sense:
[ 240.608612] INFO: task kworker/0:2:861 blocked for more than 120 seconds.
[ 240.608705] INFO: task systemd-udevd:1906 blocked for more than 120 seconds.
[ 360.633541] INFO: task kworker/0:2:861 blocked for more than 120 seconds.
[ 360.633724] INFO: task systemd-udevd:1906 blocked for more than 120 seconds.
[ 480.638445] INFO: task kworker/0:2:861 blocked for more than 120 seconds.
[ 480.638628] INFO: task systemd-udevd:1906 blocked for more than 120 seconds.
[ 600.639348] INFO: task kworker/0:2:861 blocked for more than 120 seconds.
[ 600.639531] INFO: task systemd-udevd:1906 blocked for more than 120 seconds.
[ 720.652251] INFO: task kworker/0:2:861 blocked for more than 120 seconds.
[ 720.652434] INFO: task systemd-udevd:1906 blocked for more than 120 seconds.
Can you confirm whether this stops at the 720s point or does it continue indefinatly.