** Also affects: linux (Ubuntu Xenial)
   Importance: Undecided
       Status: New

** Changed in: linux (Ubuntu Xenial)
       Status: New => Fix Committed

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https://bugs.launchpad.net/bugs/1705748

Title:
  Samsung SSD 960 EVO 500GB refused to change power state

Status in linux package in Ubuntu:
  Fix Committed
Status in linux source package in Xenial:
  Fix Committed
Status in linux source package in Artful:
  Fix Committed

Bug description:
  === SRU Justification ===
  [Impact]
  A user reported his NVMe went out to lunch after S3.

  [Fix]
  Disable APST for this particular NVMe + Motherboard setup.

  [Test]
  User confirmed this quirk works for his system.

  [Regression Potential]
  Very Low. This applies to a specific device setup, also user can
  override this quirk by "nvme_core.force_apst=1".

  === Original Bug Report ===
  Originally thought my issue was same as this:
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1678184
  but requested to report as separate bug

  System becomes unusable at seemingly random times but especially after
  resume from suspend due to disk 'disappearing' becoming inaccessible,
  with hundreds of I/O errors logged.

  After viewing the above bug report yesterday as a quick temporary fix I added 
kernel param, updated grub, etc with:
  GRUB_CMDLINE_LINUX_DEFAULT="nvme_core.default_ps_max_latency_us=0"

  System appears to have been stable for the last day, but is presumably
  using more power than it should.

  System, drive details below:

  M2 nvme drive: Samsung SSD 960 EVO 500GB

  Ubuntu 4.10.0-26.30~16.04.1-generic 4.10.17

  M/B Asus Prime B350m-A
  Ryzen 1600 cpu

  Jul 20 16:32:59 phs08 kernel: [ 190.893571] INVALID_DEVICE_REQUEST 
device=00:00.0 address=0xfffffffdf8000000 flags=0x0a00]
  Jul 20 16:33:05 phs08 kernel: [ 197.010928] nvme 0000:01:00.0: controller is 
down; will reset: CSTS=0xffffffff, PCI_STATUS=0xffff
  Jul 20 16:33:05 phs08 kernel: [ 197.046980] pci_raw_set_power_state: 4 
callbacks suppressed
  Jul 20 16:33:05 phs08 kernel: [ 197.046985] nvme 0000:01:00.0: Refused to 
change power state, currently in D3
  Jul 20 16:33:05 phs08 kernel: [ 197.047163] nvme nvme0: Removing after probe 
failure status: -19
  Jul 20 16:33:05 phs08 kernel: [ 197.047182] nvme0n1: detected capacity change 
from 500107862016 to 0
  Jul 20 16:33:05 phs08 kernel: [ 197.047793] blk_update_request: I/O error, 
dev nvme0n1, sector 0

  nvme list

  /dev/nvme0n1 S3EUNX0J305518L Samsung SSD 960 EVO 500GB 1.2 1 125.20 GB
  / 500.11 GB 512 B + 0 B 2B7QCXE7

  sudo nvme id-ctrl /dev/nvme0

  NVME Identify Controller:
  vid : 0x144d
  ssvid : 0x144d
  sn : S3EUNX0J305518L
  mn : Samsung SSD 960 EVO 500GB
  fr : 2B7QCXE7
  rab : 2
  ieee : 002538
  cmic : 0
  mdts : 9
  cntlid : 2
  ver : 10200
  rtd3r : 7a120
  rtd3e : 4c4b40
  oaes : 0
  oacs : 0x7
  acl : 7
  aerl : 3
  frmw : 0x16
  lpa : 0x3
  elpe : 63
  npss : 4
  avscc : 0x1
  apsta : 0x1
  wctemp : 350
  cctemp : 352
  mtfa : 0
  hmpre : 0
  hmmin : 0
  tnvmcap : 500107862016
  unvmcap : 0
  rpmbs : 0
  sqes : 0x66
  cqes : 0x44
  nn : 1
  oncs : 0x1f
  fuses : 0
  fna : 0x5
  vwc : 0x1
  awun : 255
  awupf : 0
  nvscc : 1
  acwu : 0
  sgls : 0
  ps 0 : mp:6.04W operational enlat:0 exlat:0 rrt:0 rrl:0
            rwt:0 rwl:0 idle_power:- active_power:-
  ps 1 : mp:5.09W operational enlat:0 exlat:0 rrt:1 rrl:1
            rwt:1 rwl:1 idle_power:- active_power:-
  ps 2 : mp:4.08W operational enlat:0 exlat:0 rrt:2 rrl:2
            rwt:2 rwl:2 idle_power:- active_power:-
  ps 3 : mp:0.0400W non-operational enlat:210 exlat:1500 rrt:3 rrl:3
            rwt:3 rwl:3 idle_power:- active_power:-
  ps 4 : mp:0.0050W non-operational enlat:2200 exlat:6000 rrt:4 rrl:4
            rwt:4 rwl:4 idle_power:- active_power:-
  ---
  ApportVersion: 2.20.1-0ubuntu2.10
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  drgrumpy   2192 F.... pulseaudio
   /dev/snd/pcmC1D0p:   drgrumpy   2192 F...m pulseaudio
   /dev/snd/controlC1:  drgrumpy   2192 F.... pulseaudio
  DistroRelease: Linux 18.2
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=a6896cdd-6bac-4e7f-9e13-55460859c3ec
  InstallationDate: Installed on 2017-07-06 (15 days ago)
  InstallationMedia: Linux Mint 18.2 "Sonya" - Release amd64 20170628
  IwConfig:
   lo        no wireless extensions.

   enp37s0   no wireless extensions.
  MachineType: System manufacturer System Product Name
  Package: linux (not installed)
  ProcEnviron:
   LANGUAGE=en_GB:en
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 nouveaufb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.10.0-26-generic 
root=UUID=f7ae652b-cbf6-48b8-bc6a-d3963957ab57 ro 
nvme_core.default_ps_max_latency_us=0
  ProcVersionSignature: Ubuntu 4.10.0-26.30~16.04.1-generic 4.10.17
  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-4.10.0-26-generic N/A
   linux-backports-modules-4.10.0-26-generic  N/A
   linux-firmware                             1.157.11
  RfKill:

  Tags:  sonya
  Uname: Linux 4.10.0-26-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:

  _MarkForUpload: True
  dmi.bios.date: 06/20/2017
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 0805
  dmi.board.asset.tag: Default string
  dmi.board.name: PRIME B350M-A
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: Rev X.0x
  dmi.chassis.asset.tag: Default string
  dmi.chassis.type: 3
  dmi.chassis.vendor: Default string
  dmi.chassis.version: Default string
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvr0805:bd06/20/2017:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnPRIMEB350M-A:rvrRevX.0x:cvnDefaultstring:ct3:cvrDefaultstring:
  dmi.product.name: System Product Name
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer

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