Am Tuesday 15 March 2011 schrieben Sie:
> On Mon, Mar 14, 2011 at 10:57 PM, Guido Winkelmann
>
> <[email protected]> wrote:
> > On Monday 14 March 2011 20:32:23 Stefan Hajnoczi wrote:
> >> On Mon, Mar 14, 2011 at 6:05 PM, Guido Winkelmann
> >>
> >> <[email protected]> wrote:
> >> > Does anybody have an idea what might cause this or what might be done
> >> > about it?
> >>
> >> The lsi_scsi emulation code is incomplete. It does not handle some
> >> situations like the ORDERED commands or message 0x0c.
> >>
> >> There is a patch to address the message 0xc issue, it has not been
> >> applied to qemu.git or qemu-kvm.git yet:
> >> http://patchwork.ozlabs.org/patch/63926/
> >>
> >> Basically there is no one actively maintaining or reviewing patches
> >> for the lsi53c895a SCSI controller.
> >
> > Does that mean that using the SCSI transport for virtual disks is
> > officially unsupported or deprecated or that it should be?
>
> The LSI SCSI emulation in particular has not seen much attention. As
> for the wider SCSI emulation there has been work over the past few
> months so it's alive and being used.
Well, I cannot find any other HBAs than LSI when I run "qemu -device ?" - or at
least nothing I would recognize as a SCSI HBA. As far as I can see, that pretty
much means I cannot use SCSI disks in KVM at all, unless I'm prepared to live
with the problems described earlier...
Guido
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