Comment 0 for bug 1699892

Revision history for this message
Norbert (nrbrtx) wrote : linux-image-4.4.0-81-generic cause scilab-5.5.2 to crash with "Segmentation fault (core dumped)"

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".

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)