Backport of glxsb(4) to RELENG_6

[Patrick Lamaizière]

Le Thu, 12 Feb 2009 22:34:43 +0100,
Lars Engels <lme at FreeBSD.org>:

Hi,

> I just tried it, but I get this message: 
> glxsb0: <AMD Geode LX Security Block (AES-128-CBC, RNG)> mem
> 0xefff4000-0xefff7fff irq 9 at device 1.2 on pci0 

> glxsb0: cannot allocate DMA memory of 32768 bytes (12)

I think you are very low on memory and the driver cannot allocate his
DMA-able buffer (error 12=ENOMEM)

This is not really a bug. But i've found another problem related to the
taskqueue. 

I'm doing a fake driver to be able to test on a vmware machine.