Am Wednesday 16 March 2011 schrieb Stefan Hajnoczi:
> On Tue, Mar 15, 2011 at 1:20 PM, Guido Winkelmann
>
> <[email protected]> wrote:
> > 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...
>
> The LSI controller is the only available PCI SCSI HBA. Are you able
> to try the patch I linked?
> http://patchwork.ozlabs.org/patch/63926/
I haven't tried the patch yet. At work, it was decided that we are not going to
use a manually patch version of qemu-kvm unless absolutely necessary, and at
home, I'm unlikely to ever want to virtualize an OS without virtio-drivers.
I can still try the patch on my home machine, if you want me to.
Guido
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