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Re: INSTALL kernel page fault with SATA port-multiplexer backplanes

On Mon, Jan 30, 2012 at 12:31:11PM -0700, Brook Milligan wrote:
> I am trying to build a system that uses some Syba SY-PEX40008 SATA
> controllers, each backed by port-multiplexers that contain SiL3726
> chipsets.  Unfortunately, the INSTALL kernel page faults when the
> first controller is detected:
>      siisata0 port 0: device present, speed: 3.0Gb/s
>      Followed by:
>      Fatal page fault in supervisor mode.
>      trap type 6 code 0 rip ffffffff802faf80 cs 8 rflags 10202 cr2 50 cpl 6 
> rsp ffff80005580aa38
>      kernel: page fault trap, code=0
>      stopped in pid 0.32 (system) at 0xffffffff802faf80: call *0x50(%r14)


> If the backplanes are removed, the system will boot and install, but I
> am not yet certain whether the installed system will run with the
> backplanes reinstalled.
> Are these (or any?) SATA port-multiplexer backplanes supported in
> NetBSD?

SATA Port Multipliers are not supported.
But they shouldn't present problems like this either.
They should pass the drive on their first port through,
not that that's very useful.

        Jonathan Kollasch

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