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| author |   mikeb <mikeb@openbsd.org> | 2017-07-13 11:23:53 +0000 |
|---|---|---|
| committer | mikeb <mikeb@openbsd.org> | 2017-07-13 11:23:53 +0000 |
| commit | 389f05d36ceb7e17444c479faa1eefe29cde2737 (patch) | |
| tree | 33e313097707d0231d91d0257bef1659a42e7ebd | |
| parent | Missing trailing / in url (diff) | |
| download | wireguard-openbsd-389f05d36ceb7e17444c479faa1eefe29cde2737.tar.xz wireguard-openbsd-389f05d36ceb7e17444c479faa1eefe29cde2737.zip | |
Add a comment explaining why pciide(4) must skip attaching disks
Requested by kettenis@.
| -rw-r--r-- | sys/dev/pv/hvs.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/sys/dev/pv/hvs.c b/sys/dev/pv/hvs.c index d8435912d09..0666c432119 100644 --- a/sys/dev/pv/hvs.c +++ b/sys/dev/pv/hvs.c @@ -320,7 +320,13 @@ hvs_attach(struct device *parent, struct device *self, void *aux) saa.saa_sc_link = &sc->sc_link; sc->sc_scsibus = config_found(self, &saa, scsiprint); - if (sc->sc_scsibus) + /* + * If the driver has successfully attached to an IDE + * device, we need to make sure that the same disk is + * not available to the system via pciide(4) causing + * DUID conflicts and preventing system from booting. + */ + if (!(sc->sc_flags & HVSF_SCSI) && sc->sc_scsibus) pciide_skip_ata = 1; } |