[ENBD] New to ENBD, having troubles

[Peter T. Breuer]

"Peter T. Breuer wrote:"
> "A month of sundays ago Christopher Eveland wrote:"
> > nbd-netserver  1178: recv_reply client (1) net_recv_reply reports bad magic
> > 0x0 instead of 0x67446698 with error 0x0 handle 0xbffff1ec flags 134544497
> > cmd 1 len 0 sector 4294967295

This has also been worrying me. Is that sector number 1 less than 4G?
I.e. is it "-1", or 0xffffffff?  Can we be looking at a signedness
issue here? Apart from the bad magic, the request makes sense as being a
write (cmd 1) of zero bytes (len 0) to sector -1.

I wonder if a strace of mke2fs would show it writing at sector -1, i.e.
at the 2TB range. Maybe somebody has decided to start getting ready for
terabyte sized devices.

Groan. Am I going to have to revise everything for signedness near the
2TB point?

Peter