Little update here:
I tried ubuntu server 16.04 with HWE (4.13.0-36-generic) and lxd 3.0 + zfs 0.7.5 (latest from bionic repo) - and it seems there is no such bug with 4.13 kernel.
After that I updated kernel (from bionic repo again - 4.15.0-22-generic) - and but appear again: zfs hangs if my lxd ct restarts (on mount again).
Little update here:
I tried ubuntu server 16.04 with HWE (4.13.0-36-generic) and lxd 3.0 + zfs 0.7.5 (latest from bionic repo) - and it seems there is no such bug with 4.13 kernel.
After that I updated kernel (from bionic repo again - 4.15.0-22-generic) - and but appear again: zfs hangs if my lxd ct restarts (on mount again).
So now I am kind of sure that it is kernel bug. kernel. ubuntu. com/~kernel- ppa/mainline/ v4.16.12/
Also I tried 4.16.12 from here: http://
Same behaviour - zfs hangs.