On 1 Apr 2016, at 16:31, Eric Blake <[email protected]> wrote: > When qemu client is talking to a qemu server, there is no > incompatibility between the two - all client commands that set FUA are > sanely handled by the recipient server code. But the same is not true > if you pair a current qemu client with current nbd.git server, as the > qemu will unconditionally set FUA on flush, and the server now rejects > it as an invalid flag (thus making it impossible for qemu to flush). So > we probably ought to fix qemu client to quit unconditionally sending FUA > (no change when qemu client talks to qemu server); and at the same time > out to fix NBD server to silently ignore FUA on flush (fix the breakage > between the pairing).
+1. -- Alex Bligh
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