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[Owen Dunn <1457852@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Description:    Ubuntu 14.04.2 LTS
Release:        14.04

linux-image-3.13.0-49-generic version 3.13.0-49.83

I have a large number of Dell Optiplex 9020 machines, and when they are
asked to shutdown with e.g. shutdown -h now, they shut down successfully
and then approximately four seconds later they start up again.

This problem only happens if the system's USB3 ports are enabled.

If I reinstate the code removed from xhci-pci.c in the diff.gz:

        if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
-           (pdev->device == PCI_DEVICE_ID_INTEL_LYNXPOINT_XHCI ||
-            pdev->device == PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI)) {
-               /* Workaround for occasional spurious wakeups from S5 (or
-                * any other sleep) on Haswell machines with LPT and LPT-LP
-                * with the new Intel BIOS
-                */
-               /* Limit the quirk to only known vendors, as this triggers
-                * yet another BIOS bug on some other machines
-                * https://bugzilla.kernel.org/show_bug.cgi?id=66171
-                */
-               if (pdev->subsystem_vendor == PCI_VENDOR_ID_HP)
-                       xhci->quirks |= XHCI_SPURIOUS_WAKEUP;
+               pdev->device == PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI) {
+               xhci->quirks |= XHCI_SPURIOUS_REBOOT;
        }

and add msleep(1000) to xhci.c as suggested at http://www.gossamer-
threads.com/lists/linux/kernel/1713011

...shutdown shuts the machine down as expected.

I attach the output of lspci -mnn.

(S)

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

** Attachment added: "lspci -mnn > lspci.txt"
   https://bugs.launchpad.net/bugs/1457852/+attachment/4402307/+files/lspci.txt

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https://bugs.launchpad.net/bugs/1457852

Title:
  Optiplex 9020 reboots rather than shutting down if USB3 enabled

Status in linux package in Ubuntu:
  New

Bug description:
  Description:    Ubuntu 14.04.2 LTS
  Release:        14.04

  linux-image-3.13.0-49-generic version 3.13.0-49.83

  I have a large number of Dell Optiplex 9020 machines, and when they
  are asked to shutdown with e.g. shutdown -h now, they shut down
  successfully and then approximately four seconds later they start up
  again.

  This problem only happens if the system's USB3 ports are enabled.

  If I reinstate the code removed from xhci-pci.c in the diff.gz:

          if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
  -           (pdev->device == PCI_DEVICE_ID_INTEL_LYNXPOINT_XHCI ||
  -            pdev->device == PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI)) {
  -               /* Workaround for occasional spurious wakeups from S5 (or
  -                * any other sleep) on Haswell machines with LPT and LPT-LP
  -                * with the new Intel BIOS
  -                */
  -               /* Limit the quirk to only known vendors, as this triggers
  -                * yet another BIOS bug on some other machines
  -                * https://bugzilla.kernel.org/show_bug.cgi?id=66171
  -                */
  -               if (pdev->subsystem_vendor == PCI_VENDOR_ID_HP)
  -                       xhci->quirks |= XHCI_SPURIOUS_WAKEUP;
  +               pdev->device == PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI) {
  +               xhci->quirks |= XHCI_SPURIOUS_REBOOT;
          }

  and add msleep(1000) to xhci.c as suggested at http://www.gossamer-
  threads.com/lists/linux/kernel/1713011

  ...shutdown shuts the machine down as expected.

  I attach the output of lspci -mnn.

  (S)

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