[Scilab-users] New computer, graphics(?) crashes

[Tim Wescott]

I'm running Lubuntu 14.04.  I installed fglrx, and the behavior got
worse.  Before, Scilab would run for a while.  Now, it gets to the first
graphics issue and bombs.

I'm going to try uninstalling fglrx and see what happens.  I'm going to
be getting desperate here soon -- this is my work machine, I'm in the
middle of a project for a customer, and I'm stuck here.

(Disabling on-board video and buying a graphics card is an option).

I start scilab from the command line and get:

 libEGL warning: DRI2: failed to authenticate

Then at the Scilab prompt I type

scf(0); clf; plot2d(sin((0:0.01:1) * 4 * %pi))

I get a nice graph.

Then I close the graph window, and Scilab tanks, with the following
message:

#
# A fatal error has been detected by the Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=0xb6ddc289, pid=4421, tid=543931200
#
# JRE version: 6.0_41-b02
# Java VM: Java HotSpot(TM) Server VM (20.14-b01 mixed mode linux-x86 )
# Problematic frame:
# C  [libscilab-cli.so.0+0x185289]  short+0x9f
#
# An error report file with more information is saved as:
# /home/tim/Documents/Customers/Pacesetter/Technical/Software/particle/ScilabCode/hs_err_pid4421.log
#
# If you would like to submit a bug report, please visit:
#   http://java.sun.com/webapps/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#

[error occurred during error reporting (null), id 0xb]

Aborted (core dumped)


On Wed, 2015-05-27 at 08:15 +0300, Nikolay Strelkov wrote:
> Dear Tim!
> 
> For me it seems that you need to use proprietary AMD drivers - fglrx.
> Open drivers are buggy and show low-performance.
> 
> If you want to use open driver on Ubuntu 12.04 LTS (precise) you
> should upgrade its HWE to 14.04 LTS (trusty).
> 
> With best regards,
> Nikolay.
> 
> 
> 27 мая 2015 г. 3:22 пользователь "Tim Wescott" <tim at wescottdesign.com>
> написал:
>         Running a Scilab algorithm that puts up a lot of graphs,
>         Scilab crashes
>         with the report below.  It's only happened with Scilab, but it
>         appears
>         to be the video driver that's complaining, so I don't know if
>         this is a
>         problem with Linux or with Scilab.  The processor is an AMD
>         A10 with
>         on-board video processing which is considerably different from
>         my
>         12-year-old Dell that this computer is replacing.
>         
>         Does anyone have clues for the clueless?  Particularly
>         suggestions for
>         isolating, fixing, or working around the problem?
>         
>         radeon: Failed to allocate a buffer:
>         radeon:    size      : 3328 bytes
>         radeon:    alignment : 256 bytes
>         radeon:    domains   : 2
>         EE ../../../../../../src/gallium/drivers/radeon/r600_texture.c:1012
>         r600_texture_transfer_map - failed to create temporary texture
>         to hold
>         untiled copy
>         radeon: Failed to allocate a buffer:
>         radeon:    size      : 1280 bytes
>         radeon:    alignment : 256 bytes
>         radeon:    domains   : 4
>         radeon: Failed to allocate a buffer:
>         radeon:    size      : 1 bytes
>         radeon:    alignment : 1 bytes
>         radeon:    domains   : 2
>         radeon: Failed to allocate a buffer:
>         radeon:    size      : 1 bytes
>         radeon:    alignment : 1 bytes
>         radeon:    domains   : 2
>         Segmentation fault (core dumped)
>         
>         
>         --
>         
>         Tim Wescott
>         www.wescottdesign.com
>         Control & Communications systems, circuit & software design.
>         Phone: 503.631.7815
>         Cell:  503.349.8432
>         
>         
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-- 

Tim Wescott
www.wescottdesign.com
Control & Communications systems, circuit & software design.
Phone: 503.631.7815
Cell:  503.349.8432