Kernel-2.6.6 boot message??

[Ishwar Rattan <ishwar@pali.cps.cmich.edu>]

I just compiled kernel-2.6.6, it compiles (saw lots of warnings!)
and boots fine. I saw this message in 'dmesg' output:

---
...
hdb: max request size: 128KiB
hdb: 60074784 sectors (30758 MB) w/2048KiB Cache, CHS=59598/16/63
 hdb: hdb1 hdb2 < hdb5 hdb6 hdb7 hdb8 >
kobject_register failed for ide (-17)
Call Trace:
 [<c01b7b0e>] kobject_register+0x3a/0x40
 [<c01f9694>] bus_add_driver+0x30/0x64
 [<c01f9920>] driver_register+0x34/0x38
 [<c01de478>] pnp_register_driver+0x28/0x58
 [<c0231653>] pnpide_init_module+0x7/0xc
 [<c0394887>] do_initcalls+0x27/0xa4
 [<c0100349>] init+0x55/0x164
 [<c01002f4>] init+0x0/0x164
 [<c0104221>] kernel_thread_helper+0x5/0xc

mice: PS/2 mouse device common for all mice
...
---

What could be causing this message to be generated?

-ishwar