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[Bug 1562618] Re: whole OS freezes seemingly randomly


the saga continues. I am on this now:
Linux vincent-Lenovo-Yoga-2-11 4.2.0-040200-generic #201510260713 SMP Mon Oct 26 11:14:43 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

The bcmwl driver did not work, so I had to use this solution to make it work as a workaround:

Before that I watched video and did some downloads, without issues.

I saw this in dmesg which worried me a bit, but I have no freezes so

[48898.144263] ata1.00: exception Emask 0x10 SAct 0x40 SErr 0x40c0000 action 0xe frozen
[48898.144276] ata1.00: irq_stat 0x00000040, connection status changed
[48898.144285] ata1: SError: { CommWake 10B8B DevExch }
[48898.144293] ata1.00: failed command: READ FPDMA QUEUED
[48898.144308] ata1.00: cmd 60/08:30:38:5b:57/00:00:01:00:00/40 tag 6 ncq 4096 in
                        res 40/00:34:38:5b:57/00:00:01:00:00/40 Emask 0x10 (ATA bus error)
[48898.144316] ata1.00: status: { DRDY }
[48898.144328] ata1: hard resetting link
[48898.868269] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[48898.949146] ata1.00: configured for UDMA/133
[48898.949224] ata1: EH complete

could that be something that later kernels choke on?
It is still to early to be further conclusive so I'll keep on testing.

Please let me know if there is anything I can do to speed this up.
Thank you

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  whole OS freezes seemingly randomly

Status in linux package in Ubuntu:

Bug description:
  I had some random freezes of the whole operating system.
  No caps lock response or terminal switching, nothng.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-15-generic 4.4.0-15.31
  ProcVersionSignature: Ubuntu 4.4.0-15.31-generic 4.4.6
  Uname: Linux 4.4.0-15-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
   /dev/snd/controlC0:  vincent    1714 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sun Mar 27 23:46:02 2016
  HibernationDevice: RESUME=UUID=8180a7b6-a1c0-494a-9f65-99a7b54f6deb
  InstallationDate: Installed on 2015-11-01 (147 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  MachineType: LENOVO 20332
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-15-generic.efi.signed root=UUID=44fb018f-3dbd-4eb6-ab9a-6668de8d13d2 ro quiet splash vt.handoff=7
   linux-restricted-modules-4.4.0-15-generic N/A
   linux-backports-modules-4.4.0-15-generic  N/A
   linux-firmware                            1.157
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-03-25 (2 days ago)
  dmi.bios.date: 12/26/2013
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 92CN26WW(V1.06)
  dmi.board.asset.tag: NO Asset Tag
  dmi.board.name: AIUU1
  dmi.board.vendor: LENOVO
  dmi.board.version: 31900042STD
  dmi.chassis.asset.tag: NO Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Lenovo Yoga 2 11
  dmi.modalias: dmi:bvnLENOVO:bvr92CN26WW(V1.06):bd12/26/2013:svnLENOVO:pn20332:pvrLenovoYoga211:rvnLENOVO:rnAIUU1:rvr31900042STD:cvnLENOVO:ct10:cvrLenovoYoga211:
  dmi.product.name: 20332
  dmi.product.version: Lenovo Yoga 2 11
  dmi.sys.vendor: LENOVO

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