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[Anton Blanchard <anton@xxxxxxxxx>]

Talking to benh, the main issue in the PCIE hotplug driver.
Unfortunately that is not a module:

CONFIG_HOTPLUG_PCI_PCIE=y

Could we get that disabled in the ppc64le defconfig? We don't have any
hardware that needs it.

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https://bugs.launchpad.net/bugs/1374440

Title:
  power-nv ppc64el need to blacklist shpchp

Status in “linux” package in Ubuntu:
  Fix Committed
Status in “linux” source package in Utopic:
  Fix Committed

Bug description:
  The shpchp module seems to be causing issues on some ppc64el hardware.
  We're able to work around the issue by blacklisting it as:

  $ cat /etc/modprobe.d/blacklist-ppc64el.conf
  blacklist shpchp

  I've discussed this with Anton, and we came up with the above work around.
  I'll attach a log of the failed boot.   Note, that the shpchp.blacklist=yes command line parameters seem not to do anything (ie, just ignore them).

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: linux-image-3.16.0-17-generic 3.16.0-17.23
  ProcVersionSignature: Ubuntu 3.16.0-17.23-generic 3.16.3
  Uname: Linux 3.16.0-17-generic ppc64le
  AlsaDevices: Error: command ['ls', '-l', '/dev/snd/'] failed with exit code 2: ls: cannot access /dev/snd/: No such file or directory
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.14.7-0ubuntu2
  Architecture: ppc64el
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  Date: Fri Sep 26 12:54:29 2014
  Lsusb:
   Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: root=UUID=aad7f49b-45f2-42ec-83b9-3233a014bae6 ro console=hvc0
  ProcLoadAvg: 6.42 2.15 0.79 1/1156 5938
  ProcLocks:
   1: FLOCK  ADVISORY  WRITE 2515 00:11:45214 0 EOF
   2: POSIX  ADVISORY  WRITE 2369 00:11:50266 0 EOF
   3: POSIX  ADVISORY  WRITE 2567 00:11:47202 0 EOF
  ProcSwaps:
   Filename				Type		Size	Used	Priority
   /swap.img                               file		8388544	0	-1
  ProcVersion: Linux version 3.16.0-17-generic (buildd@fisher03) (gcc version 4.9.1 (Ubuntu 4.9.1-15ubuntu1) ) #23-Ubuntu SMP Fri Sep 19 16:54:14 UTC 2014
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-17-generic N/A
   linux-backports-modules-3.16.0-17-generic  N/A
   linux-firmware                             1.134
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  cpu_cores: Number of cores present = 20
  cpu_coreson: Number of cores online = 19
  cpu_dscr: DSCR is 0
  cpu_runmode:
   Could not retrieve current diagnostics mode,
   No firmware implementation of function
  cpu_smt: SMT is on

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