pptdevs option crashes system

[Vesselin Mirewski]

Hi,
I'm trying to bring up an excellent PCIe Fusion board which has no driver
for FreeBSD. I used bhyve to bring up an ubuntu server ( which has an
original driver by the manufacturer )
All went just fine, till I tried to pass through the board to the linux.
My CPUs support all that's needed by bhyve: Xeon X5675.

The board ( pciconf -lv ) :

none3 at pci0:11:0:0: class=0x018000 card=0x178d103c chip=0x10051aed rev=0x01
hdr=0x00
    vendor     = 'Fusion-io'
    device     = 'ioDimm3'
    class      = mass storage
none4 at pci0:12:0:0: class=0x018000 card=0x178d103c chip=0x10051aed rev=0x01
hdr=0x00
    vendor     = 'Fusion-io'
    device     = 'ioDimm3'
    class      = mass storage

my /boot/loader.conf has ( bhyve part ):
vmm_load="YES"
nmdm_load="YES"

*pptdevs="11/0/0 12/0/0"*

The last line crashes the system - "Interrupt trap" and the system starts
to shutdown the cpus ( which gets an ugly loop till it finally reboots )

Then single user,  set pptdevs="" , boot and everything is fine again.

The board is an HP accelerator board with 2x160GB SLC SSDs with ( according
to specifications ) 150PB lifetime and the amazing 230,000 IOPs - I'm dying
to do some benchmarks with PostgreSQL ...

Any advice will be highly appreciated. Thanks in advance for your time.

-- 
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В. Миревски
+359 884 63 74 64