2.5.44: /proc/stat not reporting all disks statistics

HI,

I was modifying xosview to support I/O statistics (one graph for each
disk?) with new
/proc/stat, but then I saw that on my IDE system this file
was not reporting statistics from all disks.

I have on this system two disks, primary master and secondary master,
hda and hdc.

In /proc/stat
i see just:

disk_io: (3,0):(24382,16849,158610,7533,382512)

so, I see 22,0 disk (hdc) is somehow missing.

If needed I can check on a scsi system with three disks.

bests

Luigi