On 12/05/2016 00:39, Eric Blake wrote: > - If we report an error to NBD_CMD_READ, we are not writing out > any data payload; but the protocol says that a client can expect > to read the payload no matter what (and must instead ignore it), > which means the client will start reading our next replies as > its data payload. Fix by disconnecting (an alternative fix of > sending bogus payload would be trickier to implement).
This is an error in the spec. The Linux driver doesn't expect to read the payload here, and neither does block/nbd-client.c. Paolo
