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 majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
