In article <cn2acfmbdli.fsf@tille.pvv.ntnu.no>,
Steinar Hamre  <steinarh@pvv.ntnu.no> wrote:
>mlelstv@serpens.de (Michael van Elst) writes:
>
>> On shutdown however we do:
>> 
>> swap1                   remove swap from block devices
>
>Why?  Doing this at shutdown makes no sense to me.
>It *anything* using swap is left, it may be costly, or even harmful.
>
>There is no consistency to care for on swap. Crashdumps are the only
>thing swap may be used for when going down, but rc.d won't be used
>anyway if there is a panic.
>
>It seems FreeBSD is *not* removing swap from block devices at shutdown.

There is another reason to remove swap from block devices at shutdown:
raidframe. I am not advocating that this is a good thing or a good reason
to do it, just that there is other precedence. Ideally the kernel should
be automatically taking care of this.

christos