Am Wednesday 29 April 2009 12:50:04 schrieb Christoph Hellwig: > On Tue, Apr 28, 2009 at 09:09:52PM +0200, Christian Borntraeger wrote: > > Yes, virtio-scsi is also something we were thinking of. The last time we > > discussed this idea of SCSI passthrough internally, we stumbled over error > > recovery. Who is responsible for the error recovery? The host, the guest, > > or both? Are there problems, which will trigger error recovery in the guest > > and host midlayer at the same time? To be honest, my scsi knowledge is very > > limited, so I dont know if that is a real problem. > > I'm not that far with planning yet. The best way would be to do real > error handling in the host probably.
Yes, that was my impression too. The tricky part is the timeout based recovery found in the scsi midlayer (e.g. scsi-error.c). In case of a timeout the guest and the host will start recovery at the same time. Christian -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
