pptdevs option crashes system

[David Ehrmann]

It sounds like the bug I reported a while ago, but on a different chip
family:

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=207602

On Sunday, April 24, 2016, Vesselin Mirewski <v.mirewski at bugsys.org> wrote:

> 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.
>
> --
> ------------------------------------------------------
> В. Миревски
> +359 884 63 74 64
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