svn commit: r294329 - in head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs: . sys

[Stefan Esser]

Am 19.01.2016 um 18:08 schrieb Kurt Lidl:
> Removing the ability to run different zpools on top of a zvol is
> a significant reduction in functionality of the entire system, and a
> huge violation of the POLA.
> 
> At the very least, can you not add a sysctl that allows the
> dangerous behavior (even if it defaults to off)?  Myself
> and certainly others rely on having being able to use a zpool
> installed into a zvol for hosting bhyve virtual machines.
> 
> I've managed to deadlock the system when experimenting with this,
> but for the normal course of operations, it works just fine.
> 
> -Kurt

I already sent a private message to Alan because I also have
a system that has been running for years with such a setup.

A tunable might be even better than a sysctl (or the sysctl
might be initialized from the tunable) to allow booting with
the old behavior.

Regards, STefan