Bug 448467 - octave segfaults while executing "clear all"
Summary: octave segfaults while executing "clear all"
Alias: None
Product: Fedora
Classification: Fedora
Component: octave-forge
Version: 11
Hardware: x86_64
OS: Linux
Target Milestone: ---
Assignee: Alex Lancaster
QA Contact: Fedora Extras Quality Assurance
: 517482 (view as bug list)
Depends On:
TreeView+ depends on / blocked
Reported: 2008-05-27 06:28 UTC by Thomas Müller
Modified: 2009-11-04 18:21 UTC (History)
8 users (show)

Fixed In Version: 20090607-15.fc11
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2009-11-04 12:27:19 UTC
Type: ---

Attachments (Terms of Use)

Description Thomas Müller 2008-05-27 06:28:17 UTC
Description of problem:
octave segfaults while executing "clear all".
It does not matter if any variables were defined.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
just execute octave --eval "clear all"

Actual results:
segmentation fault

Expected results:
no segmentation fault ;)

Additional info:
(gdb) run -q --eval "clear all"
Starting program: /usr/bin/octave -q --eval "clear all"
warning: "/usr/lib/debug/usr/lib64/atlas/liblapack.so.3.0.debug": The separate
debug info file has no debug info
warning: "/usr/lib/debug/usr/lib64/atlas/libblas.so.3.0.debug": The separate
debug info file has no debug info
[Thread debugging using libthread_db enabled]
[New Thread 0x7f8ddaa76700 (LWP 5636)]

Program received signal SIGSEGV, Segmentation fault.
0x00000032d95b8496 in symbol_record::clear (this=<value optimized out>) at ov.h:392
392	    { return rep->is_defined (); }
Current language:  auto; currently c++

Comment 1 Thomas Müller 2008-06-02 08:45:49 UTC
The Windows version also segfaults:

C:\Programme\Octave>bin\octave -q --eval "clear -all"
 - Use `pkg list' to see a list of installed packages.
 - SciTE editor installed. Use `edit' to start the editor.
 - MSYS shell available (C:\Programme\Octave\msys).
 - Graphics backend: jhandles.

panic: Segmentation violation -- stopping myself...
attempting to save variables to `octave-core'...
save to `octave-core' complete

Comment 2 Thomas Müller 2008-06-03 09:11:44 UTC
It seems that some SWIG-based packages (ann, ftp) are the cause of this problem,
so this only happens with octave-forge installed.

This is also discussed on octave's mailing list:

Comment 3 Oscar Yanez 2008-09-22 23:46:33 UTC

I followed the suggested link in #2 and ran:

> pkg rebuild -noauto ftp database ann

at the octave command prompt (octave was run as superuser) and the problem went away.... as far as you don't use ann or the other packages.

Hope this helps (and thanks to Thomas)


Comment 4 Rakesh Pandit 2008-09-23 03:23:29 UTC
Thanks folks for input - will look into it this weekend.

Comment 5 Rakesh Pandit 2008-10-23 09:58:06 UTC
Can you folks reproduce for 3.0.2 and give me the input ?

Comment 6 Thomas Müller 2008-10-23 12:39:15 UTC
I just tested the packages in rawhide and it still crashes when the octave-forge packages "ftp" or "ann" are loaded.

$ rpm -q octave octave-forge

$ octave -q
octave:1> clear all
octave:2> pkg load ftp
octave:3> clear all
panic: Segmentation fault -- stopping myself...
attempting to save variables to `octave-core'...
save to `octave-core' complete
Segmentation fault

Comment 7 Rakesh Pandit 2008-10-23 13:39:07 UTC
Thanks for input ... I will get back to it soon.

Comment 8 Alex Lancaster 2008-12-10 10:02:36 UTC
I can verify that this is still present in 3.0.3 release. Seems to be an upstream issue in combination with some octave-forge packages perhaps?

Comment 9 Mark van Rossum 2009-01-25 22:52:29 UTC
I confirm that 
this bugs still occurs with the combination octave-3.0.3-1.fc10.i386
and octave-forge-20080831-2.fc10.i386. 

Luckily the workaround from #3 still works.

Comment 10 Rakesh Pandit 2009-03-06 06:32:32 UTC
I did check mailing list and this issue hasn't been been fixed yet. I have asked for status. Waiting for response.

Comment 11 Rakesh Pandit 2009-03-17 09:04:17 UTC
No response .. this seems to be hanging long!

Comment 12 Mark van Rossum 2009-05-17 11:06:19 UTC
Still in Fedora 11 with Octave 3.0.5 and

Work around still valid.

Comment 13 Bug Zapper 2009-06-10 01:14:02 UTC
This message is a reminder that Fedora 9 is nearing its end of life.
Approximately 30 (thirty) days from now Fedora will stop maintaining
and issuing updates for Fedora 9.  It is Fedora's policy to close all
bug reports from releases that are no longer maintained.  At that time
this bug will be closed as WONTFIX if it remains open with a Fedora 
'version' of '9'.

Package Maintainer: If you wish for this bug to remain open because you
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to a later Fedora version prior to Fedora 9's end of life.

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Comment 14 Mark van Rossum 2009-06-11 10:32:27 UTC
Please update: still present in FC11.

Comment 15 Alex Lancaster 2009-08-14 14:31:24 UTC
*** Bug 517482 has been marked as a duplicate of this bug. ***

Comment 16 Alex Lancaster 2009-08-14 14:33:42 UTC
Can dupe in F-11 when octave-forge is installed and it goes away if octave-forge is removed.  The underlying reason does seem to be described in comment #6.  These are swig-based packages and reports on the upstream mailing lists suggest that they cause problems.  Ideally probably should remove these packages from the octave-forge bundle.   Will look into this soon.

Comment 17 Alex Lancaster 2009-10-30 08:37:55 UTC
At least in the case of the "ann" package, I can't reproduce the error with the update in updates-testing (soon to be pushed to F-11 stable):


octave:1> clear all
octave:2> pkg load ann
octave:3> clear all

However, the "ftp" package has been temporarily removed as it failed to build upstream against Octave 3.2.x.

Comment 18 Fedora Update System 2009-11-04 12:25:31 UTC
mathgl-1.9-6.fc11.1, plplot-5.9.5-1.fc11, pfstools-1.7.0-8.fc11, GMT-4.5.0-4.fc11, octave-forge-20090607-15.fc11, octave-3.2.3-1.fc11 has been pushed to the Fedora 11 stable repository.  If problems still persist, please make note of it in this bug report.

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