[haiku-bugs] Re: [Haiku] #12885: XHCI page fault under skylake

  • From: "korli" <trac@xxxxxxxxxxxx>
  • Date: Thu, 28 Jul 2016 08:13:31 -0000

#12885: XHCI page fault under skylake
--------------------------------+----------------------------
   Reporter:  kallisti5         |      Owner:  korli
       Type:  bug               |     Status:  new
   Priority:  normal            |  Milestone:  Unscheduled
  Component:  Drivers/USB/XHCI  |    Version:  R1/Development
 Resolution:                    |   Keywords:  skylake
 Blocked By:                    |   Blocking:
Has a Patch:  0                 |   Platform:  All
--------------------------------+----------------------------

Comment (by korli):

 Just a guess, it could be that the USB 2.0 stick comes in the last port of
 the hub, and because we use then the next out of bound index
 [https://github.com/haiku/haiku/blob/master/src/add-
 ons/kernel/bus_managers/usb/Hub.cpp#L279 here].
 You could try to increase the value
 [https://github.com/haiku/haiku/blob/master/src/add-
 ons/kernel/bus_managers/usb/usbspec_private.h#L19 USB_MAX_PORT_COUNT] to
 32 for instance, and see what happens.
 (the lsusb output doesn't list the usb2 stick, so it's not clear what
 happens).

--
Ticket URL: <https://dev.haiku-os.org/ticket/12885#comment:6>
Haiku <https://dev.haiku-os.org>
Haiku - the operating system.

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