OK, this is all boiling down to 8c/gcc differences of opinion.
Interesting, as things were designed in the Xen communications with the
reasonable expectation that on the same architecture you ought to be able
to pass around binary structs in event channels without standard RPC
marshall/de-marshall guck. That's how I read it anyway.
It's portable on same machine, same compiler, even to different OSes, but
not to same machine, different compiler. Interesting. So I am having to
put marshall/demarshall code into the Plan 9 code that sends messages to
Xen.
And yes, I'm well aware that kencc isn't C9x, but ... it's a nice C
anyway.
Now, I am getting back a nonsensical result for the disk size.
The partition in question is /dev/hda1, which is this:
Disk /dev/hda: 60.0 GB, 60011642880 bytes
240 heads, 63 sectors/track, 7752 cylinders
Units = cylinders of 15120 * 512 = 7741440 bytes
Device Boot Start End Blocks Id System
/dev/hda1 * 1 1324 10009408+ 7 HPFS/NTFS
/dev/hda2 1325 7154 44074800 83 Linux
/dev/hda3 7155 7287 1005480 82 Linux swap
(yes, I plan to wipe out Windows/XP in favor of Plan 9 on Xen).
The info packet for that partition comes back as this:
0x0: 02 4f 6e 00 00 00 00 00 01 03 e0 00
translated, it is 0x6e4f02 of capacity, 0x301 device (hda1! yay!), flags
e0 (DISK, VIRTUAL, READONLY) (all of which I understand save VIRTUAL -- I
guess that means a partition, not the whole disk).
0x6e4f02 is in decimal 7229186. That number makes no sense. It's not the
number of blocks, or the number of bytes per unit, or ...
Can somebody clear me up on this simple algebra problem?
thanks
ron
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