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[Michael Steenbeek <1328965@xxxxxxxxxxxxxxxxxx>]

In Ubuntu Wily, this seems to have regressed:

 michael@Hadrianus:~$ sudo -i
 root@Hadrianus:~# echo 1 > /proc/sys/abi/ldt16
 -bash: /proc/sys/abi/ldt16: No such file or directory

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https://bugs.launchpad.net/bugs/1328965

Title:
  3.13.0-29 kernel includes backport of 3.14 16-bit app restrictions but
  not override method causing wine win9x to fail

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Precise:
  Fix Released
Status in linux source package in Trusty:
  Fix Released
Status in linux source package in Utopic:
  Fix Released

Bug description:
  Kernel 3.13.0-29 evidently contains a backport of the 3.14 kernel
  security workaround that disables 16-bit binaries from running.  This
  causes all wine Windows 95 and Windows 98 applications to fail.  The
  3.14 kernel also includes a feature to re-enable support for 16-bit
  binaries by providing the /proc/sys/abi/ldt16 interface.  This part of
  the kernel patch was evidently not backported, so this ability to
  override the 16-bit application prohibition is not available.

  For this reason, I cannot move forward to new kernel releases until
  this is fixed.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-29-generic 3.13.0-29.53
  ProcVersionSignature: Ubuntu 3.13.0-27.50-generic 3.13.11
  Uname: Linux 3.13.0-27-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  soup       1783 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Wed Jun 11 12:01:26 2014
  HibernationDevice: RESUME=UUID=8dcf6a87-59e8-4af8-9e1f-cbbcc64ca7a4
  InstallationDate: Installed on 2014-04-26 (46 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  MachineType: Hewlett-Packard HP ProBook 4530s
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-27-generic root=UUID=b0984c90-6bc2-4dfb-978b-a508cbaff6a9 ro
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-27-generic N/A
   linux-backports-modules-3.13.0-27-generic  N/A
   linux-firmware                             1.127.2
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/11/2011
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: 68SRR Ver. F.20
  dmi.board.name: 167C
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: KBC Version 22.21
  dmi.chassis.asset.tag: CNU1412MC3
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvr68SRRVer.F.20:bd10/11/2011:svnHewlett-Packard:pnHPProBook4530s:pvrA0001D02:rvnHewlett-Packard:rn167C:rvrKBCVersion22.21:cvnHewlett-Packard:ct10:cvr:
  dmi.product.name: HP ProBook 4530s
  dmi.product.version: A0001D02
  dmi.sys.vendor: Hewlett-Packard

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