[haiku-bugs] Re: [Haiku] #8241: Can't boot on Sandy Bridge PC.

#8241: Can't boot on Sandy Bridge PC.
-----------------------------+------------------------------------------
   Reporter:  xeon3d         |      Owner:  axeld
       Type:  bug            |     Status:  new
   Priority:  normal         |  Milestone:  R1
  Component:  System/Kernel  |    Version:  R1/alpha3
 Resolution:                 |   Keywords:  sandy bridge,core,boot,stall
 Blocked By:                 |   Blocking:
Has a Patch:  0              |   Platform:  All
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Comment (by mmlr):

 Looking at the logs and the pictures there are a couple of things to note:
 * There are a couple of PCIe ports with devices on them
 * There is a non-PCIe bridge (Intel) that hosts another non-PCIe bridge
 (ITE) that hosts the firewire controller
 * The picture shows the last bridge (PCIe port hosting external second
 Marvell SATA controller) was configured before things stop

 That can mean a couple of things: It might mean that the problem is with
 that PCIe port or a device behind it. Or it might mean that the init of
 the bridges actually runs through but it's a device init that causes the
 stall. Or it might mean nothing and the reason is somewhere else entirely.

 The only more exotic thing is the double PCI bridges for the firewire
 controller. What I'd try therefore is disabling firewire in the firmware
 if possible to see what changes in the device layout. Then I'd go for just
 disabling anything you can one by one (USB 3.0, USB 2.0, graphics,
 networking, ...). Note that xHCI doesn't do legacy support via companion
 host controllers, hence you can't use any of the USB 3.0 ports as we don't
 yet have a driver for that.

-- 
Ticket URL: <http://dev.haiku-os.org/ticket/8241#comment:5>
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