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[Colin Ian King <1333569@xxxxxxxxxxxxxxxxxx>]

Fix sent upstream for review. https://lkml.org/lkml/2014/9/26/701

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https://bugs.launchpad.net/bugs/1333569

Title:
  Hibernate with fwts will cause hwclock command to time out

Status in Firmware Test Suite:
  In Progress
Status in “linux” package in Ubuntu:
  In Progress

Bug description:
  This issue was found in bug 1327075
  If you hibernate a system with fwts, and run the hwclock command, the hwclock command will complain that it was unable to access /dev/rtc, you have to reboot the system to have it back to normal.

  ubuntu@201401-14542:~$ sudo hwclock -r ; sleep 3;sudo fwts -P s4 --s4-device-check --s4-device-check-delay=45 --s4-sleep-delay=120; sleep 3 ;sudo hwclock -r
  Tue 24 Jun 2014 03:31:27 AM EDT  -0.875913 seconds
  Running 1 tests, results appended to results.log
  Test: S4 hibernate/resume test.                                             
    S4 hibernate/resume test.                               4 passed, 1 failed                                                                                                                                
  hwclock: select() to /dev/rtc to wait for clock tick timed out: No such file or directory
  ubuntu@201401-14542:/dev$ ll rtc
  lrwxrwxrwx 1 root root 4 Jun 23 04:59 rtc -> rtc0

  It can be easily reproduced.

  ubuntu@201401-14542:~$ fwts -v
  fwts, Version V14.05.00, 2014-05-07 01:57:17
  --- 
  ApportVersion: 2.14.1-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  ubuntu     1587 F.... pulseaudio
                        ubuntu     2722 F.... pulseaudio
   /dev/snd/controlC0:  ubuntu     1587 F.... pulseaudio
                        ubuntu     2722 F.... pulseaudio
  CRDA:
   country TW:
   	(2402 - 2472 @ 40), (3, 27)
   	(5270 - 5330 @ 40), (3, 17), DFS
   	(5735 - 5815 @ 40), (3, 30)
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=UUID=c009324a-f03b-4149-a917-82aa1d9d2631
  InstallationDate: Installed on 2014-07-25 (6 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  MachineType: Dell Inc. Inspiron 5547
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic.efi.signed root=UUID=71694704-97cb-4de1-ae78-cea0afb095b7 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-24-generic N/A
   linux-backports-modules-3.13.0-24-generic  N/A
   linux-firmware                             1.127
  StagingDrivers: rts5139
  Tags:  trusty staging
  Uname: Linux 3.13.0-24-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 02/12/2014
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: X18
  dmi.board.name: 08KNCD
  dmi.board.vendor: Dell Inc.
  dmi.board.version: X01
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: X18
  dmi.modalias: dmi:bvnDellInc.:bvrX18:bd02/12/2014:svnDellInc.:pnInspiron5547:pvrX18:rvnDellInc.:rn08KNCD:rvrX01:cvnDellInc.:ct8:cvrX18:
  dmi.product.name: Inspiron 5547
  dmi.product.version: X18
  dmi.sys.vendor: Dell Inc.

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