Airport Extreme WiFi Broken in FreeBSD 10.2

[Curtis Hamilton]

Has anyone else tried to load the BWI module in 10.2?  I attempted to load
the kernel module and build a new kernel with the module built-in.  In both
cases the boot process freezes with the following errors:

 

ata2: <ATA channel > at channel0 on atapci0

ata2: WARNING DMA initialization failed, disabling DMA

ata2: FAILURE - alloc sg_map

ata2: WARNING DMA allocation failed, disabling DMA

 

A few lines before this the following error is shown:

 

bwi0: can't allocate DMA mem

bwi0: 0th TX ring DMA alloc-failed

 

Everything works fine in 10.1