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[Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>]

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** Changed in: linux (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1699892

Title:
  linux-image-4.4.0-81-generic cause scilab-5.5.2 to crash with
  "Segmentation fault (core dumped)"

Status in linux package in Ubuntu:
  Confirmed
Status in openjdk-8 package in Ubuntu:
  New
Status in scilab package in Ubuntu:
  New

Bug description:
  Steps to introduce:
  1. Install Ubuntu 16.04 LTS.
  2. Install Scilab 5.5.2 (http://www.scilab.org/, sudo apt-get install scilab).
  3. Install all system upgrades (sudo apt-get update; sudo apt-get upgrade)
  4. Get kernel linux-image-4.4.0-81-generic with new updates.
  5a. Try to start Scilab from GUI - it crashes.
  5b. Try to start Scilab from terminal - it reports "Segmentation fault (core dumped)".

  Expected results:
  * Scilab is working normally with new kernel.

  Actual results:
  * Scilab is crashing with new kernel (linux-image-4.4.0-81-generic), but works with previous one (linux-image-4.4.0-78-generic).

  Notes:
  * First discovered and documented by Philippe Roux on Scilab MailingLists (http://mailinglists.scilab.org/Scilab-users-scilab-gt-Segmentation-fault-td4036624.html).
  * The problem exists on both 32-bit and 64-bit architectures.
  * Temporary solution is to use previous kernel.
  * The problem may be related to these: new "linux-image-4.4.0-81-generic Regression: Oracle Java plugin crashes" (bug 1699772) or old "scilab libraries are heavily underlinked, causing segfaults on load" (bug 1299686).
  * SegvReason is "writing unknown VMA".
  * May be related to CVE-2017-1000364 .

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: scilab 5.5.2-2ubuntu3
  ProcVersionSignature: Ubuntu 4.4.0-81.104-generic 4.4.67
  Uname: Linux 4.4.0-81-generic i686
  NonfreeKernelModules: wl
  ApportVersion: 2.20.1-0ubuntu2.6
  Architecture: i386
  CurrentDesktop: MATE
  Date: Thu Jun 22 23:27:11 2017
  InstallationDate: Installed on 2016-04-21 (427 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release i386 (20160420.1)
  PackageArchitecture: all
  SourcePackage: scilab
  UpgradeStatus: No upgrade log present (probably fresh install)
  ---
  ApportVersion: 2.20.1-0ubuntu2.6
  Architecture: i386
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  nikolay    1885 F.... pulseaudio
  CurrentDesktop: MATE
  DistroRelease: Ubuntu 16.04
  InstallationDate: Installed on 2016-04-21 (427 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release i386 (20160420.1)
  MachineType: ASUSTeK COMPUTER INC. UX32A
  NonfreeKernelModules: wl
  Package: scilab 5.5.2-2ubuntu3
  PackageArchitecture: all
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-81-generic root=UUID=ab9c3c8a-b6dc-40f9-b9a7-eea4950cf89e ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 4.4.0-81.104-generic 4.4.67
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-81-generic N/A
   linux-backports-modules-4.4.0-81-generic  N/A
   linux-firmware                            1.157.11
  Tags:  xenial xenial
  Uname: Linux 4.4.0-81-generic i686
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dialout dip lpadmin plugdev sambashare sudo uucp
  _MarkForUpload: True
  dmi.bios.date: 02/12/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: UX32A.216
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: UX32A
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrUX32A.216:bd02/12/2014:svnASUSTeKCOMPUTERINC.:pnUX32A:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnUX32A:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.name: UX32A
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.

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