Re: I think I've found why Xen domUs can't mount some file-backed disk images! (vnd(4) hides labels!)

[Robert Elz <kre%munnari.OZ.AU@localhost>]

    Date:        Sun, 11 Apr 2021 18:14:44 -0000 (UTC)
    From:        mlelstv%serpens.de@localhost (Michael van Elst)
    Message-ID:  <s4veak$cl1$1%serpens.de@localhost>

  | +       spb = vnd->sc_geom.vng_secsize / DEV_BSIZE;

Do we know for sure here that vng_secsize >= DEV_BSIZE ?

When I first used unix (long long ago) the drives I used had a
sector size of 256 bytes (not DEC hardware.)    (Floppies were
128 bytes if I recall correctly).

It would not be good if spb became 0 there.

kre