On 04/16/2018 11:58 AM, Rafael J. Wysocki wrote:
> On Mon, Apr 16, 2018 at 5:31 PM, Joseph Salisbury
> <joseph.salisb...@canonical.com> wrote:
>> On 04/13/2018 05:34 PM, Rafael J. Wysocki wrote:
>>> On Fri, Apr 13, 2018 at 7:56 PM, Joseph Salisbury
>>> <joseph.salisb...@canonical.com> wrote:
>>>> Hi Rafael,
>>>>
>>>> A kernel bug report was opened against Ubuntu [0].  After a kernel
>>>> bisect, it was found that reverting the following two commits resolved
>>>> this bug:
>>>>
>>>> 0ce3fcaff929 ("PCI / PM: Restore PME Enable after config space 
>>>> restoration")
>>>> 0847684cfc5f("PCI / PM: Simplify device wakeup settings code")
>>>>
>>>> This is a regression introduced in v4.13-rc1 and still exists in
>>>> mainline.  The bug causes the battery to drain when the system is
>>>> powered down and unplugged, which does not happed prior to these two
>>>> commits.
>>> What system and what do you mean by "powered down"?  How much time
>>> does it take for the battery to drain now?
>> By powered down, the bug reporter is saying physically powered off and
>> unplugged.  The system is a HP laptop:
>>
>> dmi.chassis.vendor: HP
>> dmi.product.family: 103C_5335KV HP Notebook
>> dmi.product.name: HP Notebook
>> vendor_id    : GenuineIntel
>> cpu family    : 6
>>
>>
>>>> The bisect actually pointed to commit de3ef1e, but reverting
>>>> these two commits fixes the issue.
>>>>
>>>> I was hoping to get your feedback, since you are the patch author.  Do
>>>> you think gathering any additional data will help diagnose this issue,
>>>> or would it be best to submit a revert request?
>>> First, reverting these is not an option or you will break systems
>>> relying on them now.  4.13 is three releases back at this point.
>>>
>>> Second, your issue appears to be related to the suspend/shutdown path
>>> whereas commit 0ce3fcaff929 is mostly about resume, so presumably the
>>> change in pci_enable_wake() causes the problem to happen.  Can you try
>>> to revert this one alone and see if that helps?
>> A test kernel with commits 0ce3fcaff929 and de3ef1eb1cd0 reverted was
>> tested.  However, the test kernel still exhibited the bug.
> So essentially the bisection result cannot be trusted.

We performed some more testing and confirmed just a revert of the
following commit resolves the bug:

0847684cfc5f0 ("PCI / PM: Simplify device wakeup settings code")

Can you think of any suggestions to help debug further?

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https://bugs.launchpad.net/bugs/1745646

Title:
  Battery drains when laptop is off  (shutdown)

Status in Linux:
  Unknown
Status in acpi package in Ubuntu:
  Confirmed
Status in linux package in Ubuntu:
  In Progress
Status in acpi source package in Artful:
  New
Status in linux source package in Artful:
  In Progress
Status in acpi source package in Bionic:
  Confirmed
Status in linux source package in Bionic:
  In Progress

Bug description:
  I am using hp AY008tx laptop , and many other laptop users (HP) are also 
facing the same issue . The problem don't occur when i install windows 10 . 
Now, only ubuntu is installed.
  i am using latest bios insyde20 rev 5.(latest)
  WOL disabled and no usb device connected
  checked my battery .
  it don't happen when i remove battery and plug it again after shutdown.
  tried laptop_mode_tools and tpl too

  
  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.13.0-31-generic 4.13.0-31.34~16.04.1
  ProcVersionSignature: Ubuntu 4.13.0-31.34~16.04.1-generic 4.13.13
  Uname: Linux 4.13.0-31-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.20.1-0ubuntu2.15
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Fri Jan 26 22:50:53 2018
  InstallationDate: Installed on 2018-01-25 (1 days ago)
  InstallationMedia: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 
(20170801)
  SourcePackage: linux-hwe
  UpgradeStatus: No upgrade log present (probably fresh install)
  ---
  ApportVersion: 2.20.1-0ubuntu2.15
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  gopal      2391 F.... pulseaudio
  DistroRelease: Ubuntu 16.04
  HibernationDevice: RESUME=UUID=0bf03973-049c-480e-9e14-7596bf68d994
  InstallationDate: Installed on 2018-01-25 (1 days ago)
  InstallationMedia: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 
(20170801)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 04f2:b56c Chicony Electronics Co., Ltd
   Bus 001 Device 002: ID 0a5c:216d Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: HP HP Notebook
  NonfreeKernelModules: wl
  Package: linux (not installed)
  ProcEnviron:
   LANGUAGE=en_IN:en
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_IN
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-31-generic.efi.signed 
root=UUID=3a4ef59e-130a-4ce0-92d3-2fc42f5c9f59 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 4.13.0-31.34~16.04.1-generic 4.13.13
  PulseList:
   Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not 
accessible: Permission denied
   No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-4.13.0-31-generic N/A
   linux-backports-modules-4.13.0-31-generic  N/A
   linux-firmware                             1.157.15
  Tags:  xenial
  Uname: Linux 4.13.0-31-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:

  _MarkForUpload: True
  dmi.bios.date: 11/01/2017
  dmi.bios.vendor: Insyde
  dmi.bios.version: F.40
  dmi.board.asset.tag: Type2 - Board Asset Tag
  dmi.board.name: 81EC
  dmi.board.vendor: HP
  dmi.board.version: 61.58
  dmi.chassis.type: 10
  dmi.chassis.vendor: HP
  dmi.chassis.version: Chassis Version
  dmi.modalias: 
dmi:bvnInsyde:bvrF.40:bd11/01/2017:svnHP:pnHPNotebook:pvrType1ProductConfigId:rvnHP:rn81EC:rvr61.58:cvnHP:ct10:cvrChassisVersion:
  dmi.product.family: 103C_5335KV HP Notebook
  dmi.product.name: HP Notebook
  dmi.product.version: Type1ProductConfigId
  dmi.sys.vendor: HP

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