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[Bug 1670481] Re: Backport "populate PCI DT in reverse order" patch

 

** Also affects: ubuntu-power-systems
   Importance: Undecided
       Status: New

** Changed in: ubuntu-power-systems
       Status: New => Fix Released

** Changed in: ubuntu-power-systems
   Importance: Undecided => Medium

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https://bugs.launchpad.net/bugs/1670481

Title:
  Backport "populate PCI DT in reverse order" patch

Status in The Ubuntu-power-systems project:
  Fix Released
Status in qemu package in Ubuntu:
  Fix Released
Status in qemu source package in Xenial:
  Invalid
Status in qemu source package in Yakkety:
  Won't Fix
Status in qemu source package in Zesty:
  Fix Released

Bug description:
  == Comment: #0 - MIKHAIL S. MEDVEDEV <mmedvede@xxxxxxxxxx> - 2017-03-03 14:21:43 ==
  ---Problem Description---
  On ppc64el qemu the order of device scanning was recently changed, causing device names to be in reverse order compared to e.g. x86. This is creating a need for all sorts of work arounds to make the code that assumes certain order of devices to work on Power.

  The fix has been proposed and it appears it would go into Qemu 2.9, see [1]. It might be awhile until qemu 2.9 gets widely adopted as default. It would be beneficial if the fix can be backported to an earlier versions of Qemu.
   
  [1] http://patchwork.ozlabs.org/patch/731061/

  ---uname output---
  Linux devstack-xenial-ppc64-84615 4.8.0-39-generic #42~16.04.1-Ubuntu SMP Mon Feb 20 15:09:38 UTC 2017 ppc64le ppc64le ppc64le GNU/Linux
   
  Machine Type = 8247-21L 
   
  ---Debugger---
  A debugger is not configured
   
  ---Steps to Reproduce---

   
  Contact Information = Mikhail Medvedev mmedvede@xxxxxxxxxx / Tiago Rodrigues de Mello tmello@xxxxxxxxxx

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