On Sat, Oct 24, 2020 at 03:10:05PM +0200, Filippo Valsorda wrote: > >Synopsis: kernel page fault in "sddetach -> bufq_destroy" during "bioctl > >-d" > >Category: kernel > >Environment: > System : OpenBSD 6.8 > Details : OpenBSD 6.8 (GENERIC.MP) #98: Sun Oct 4 18:13:26 MDT 2020 > > dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP > > Architecture: OpenBSD.amd64 > Machine : amd64 > >Description: > Starting with two RAID 1 arrays with a CRYPTO device on top of each (see > "devices" below), I first unmounted the filesystems, then successfully > detached the CRYPTO devices, and then tried to detach the first RAID 1.
Stacking softraid volumes is not supported. That's the best answer at this point in time. It's clear that a raid1+crypto solution is needed, but nobody has done the work to make it happen. As Joel explains here: https://marc.info/?l=openbsd-misc&m=154349798307366&w=2 you get to keep the pieces when it breaks.
