Re: virtio scsi under VirtualBox

[Reinoud Zandijk <reinoud%NetBSD.org@localhost>]

On Fri, Jan 22, 2021 at 02:23:46PM +0000, Chavdar Ivanov wrote:
> After the latest virtio commits I no longer get the panic; the
> virtio-scsi device is recognized and the bus is created; however, a
> disk attached to it is not seen at all.

thats interesting, since nothing changed that ought to have had influence; the
only change was for virtio PCI v1.0's i386 compat the bus_space_write_8() was
split into two bus_space_write_4()'s as its allowed by the spec. Since amd64
can write on every alignment, its odd that the write_8 would fail unless its a
VirtualBox emulation error that doesn't expect an 8 byter to be written in one
go. Very strange, i'll see if i can manage that.

But the discs are there in the dmesg! See

sd0 at scsibus1 target 0 lun 0: <VBOX, HARDDISK, 1.0> disk fixed
sd0: fabricating a geometry 
sd0: 16384 MB, 16384 cyl, 64 head, 32 sec, 512 bytes/sect x 33554432 sectors
sd0: fabricating a geometry
sd1 at scsibus1 target 1 lun 0: <VBOX, HARDDISK, 1.0> disk fixed
sd1: fabricating a geometry
sd1: 16384 MB, 16384 cyl, 64 head, 32 sec, 512 bytes/sect x 33554432 sectors
sd1: fabricating a geometry
sd2 at scsibus1 target 2 lun 0: <VBOX, HARDDISK, 1.0> disk fixed
sd2: fabricating a geometry
sd2: 32768 MB, 32768 cyl, 64 head, 32 sec, 512 bytes/sect x 67108864 sectors
sd2: fabricating a geometry

So you can just access them using `disklabel' and fsck'ing and mounting them
etc. Since they don't spawn dk* i presume they are not GPT.

Please let me know if anything is wrong?

Reinoud