[-rt BUG] scheduling with irqs disabled: swapper

Hey Ingo, All,
	We had the following bug reported on bootup on one of our boxes (it
was a 4way I believe) running -rt22. So far it seems to be a one-off
but I figured I'd post it to see if anyone had a clue.

thanks
-john

...
usbmon: debugfs is not available
usbcore: registered new driver hiddev
usbcore: registered new driver usbhid
drivers/usb/input/hid-core.c: v2.6:USB HID core driver
mice: PS/2 mouse device common for all mice
md: md driver 0.90.3 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: bitmap version 4.39
NET: Registered protocol family 2
BUG: scheduling with irqs disabled: swapper/0x00010002/0
caller is rt_lock_slowlock+0xd2/0x139
[<c030fb85>] schedule+0x60/0xd0 (8)
[<c0310787>] rt_lock_slowlock+0xd2/0x139 (12)
[<c0310e2d>] __lock_text_start+0x1d/0x1e (72)
[<c022a57f>] i8042_interrupt+0x2c/0x1f0 (4)
[<c013edb1>] misrouted_irq+0x85/0x118 (36)
[<c013ef08>] note_interrupt+0x43/0x9f (36)
[<c013e395>] __do_IRQ+0xc2/0xf9 (16)
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