Am Wednesday 16 March 2011 schrieb Stefan Hajnoczi: > On Tue, Mar 15, 2011 at 1:20 PM, Guido Winkelmann > > <guido-kvml@xxxxxxxxxxxxxxxxx> wrote: > > Am Tuesday 15 March 2011 schrieben Sie: > >> On Mon, Mar 14, 2011 at 10:57 PM, Guido Winkelmann > >> > >> <guido-kvml@xxxxxxxxxxxxxxxxx> wrote: > >> > On Monday 14 March 2011 20:32:23 Stefan Hajnoczi wrote: > >> >> On Mon, Mar 14, 2011 at 6:05 PM, Guido Winkelmann > >> >> > >> >> <guido-kvml@xxxxxxxxxxxxxxxxx> 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 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
