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Re: [Pkg-octave-devel] Bug#394982: octave2.9: Crashes on "x(:, :)=speye(
From: |
Rafael Laboissiere |
Subject: |
Re: [Pkg-octave-devel] Bug#394982: octave2.9: Crashes on "x(:, :)=speye(1)" |
Date: |
Tue, 24 Oct 2006 15:24:07 +0200 |
User-agent: |
Mutt/1.5.13 (2006-08-11) |
* David Bateman <address@hidden> [2006-10-24 14:18]:
> Thomas Weber wrote:
> >Hi,
> >
> >Am Dienstag, den 24.10.2006, 12:55 +0200 schrieb Rafael Laboissiere:
> >
> >>>address@hidden:~/orion/trunk/solver$ octave -q
> >>>octave:1> x(:,:)=speye(1);
> >>>panic: Segmentation fault -- stopping myself...
> >>>Segmentation fault
> >>>address@hidden:~/orion/trunk/solver$
> >>>
> >
> >I tried this with CVS and it crashes as well:
> >
> >==================================================================
> >octave-2.9.9+:1> x(:,:)=speye(1);
> >*** glibc detected *** free(): invalid next size (fast):
> >0x0000000001611150 ***
> >panic: Aborted -- stopping myself...
> >attempting to save variables to `octave-core'...
> >save to `octave-core' complete
> >Aborted
> >==================================================================
> >
> > Thomas
> >
> >
>
> I just tried this with a CVS from Sunday on an Mandriva 2006 system and
> could not generate that same error..
This works in my Debian etch system with octave2.9-2.9.9-3::
octave2.9:1> speye (1);
octave2.9:2> x = speye (1);
But this don't:
octave2.9:1> x (:, :) = speye (1);
panic: Segmentation fault -- stopping myself...
*** glibc detected *** malloc(): memory corruption (fast): 0x0904d970 ***
panic: attempted clean up apparently failed -- aborting...
Aborted
There is something weird with the indexing operation on the lefthand side
when the variable being assigned is undefined. For instance, this works:
octave2.9:1> x = speye (1);
octave2.9:2> x (:, :) = speye (1);
At any rate, the malloc problem reported in the error message may indicate
some Debian-specific bug.
--
Rafael
- Re: [Pkg-octave-devel] Bug#394982: octave2.9: Crashes on "x(:, :)=speye(1)", Rafael Laboissiere, 2006/10/24
- Re: [Pkg-octave-devel] Bug#394982: octave2.9: Crashes on "x(:, :)=speye(1)", Thomas Weber, 2006/10/24
- Re: [Pkg-octave-devel] Bug#394982: octave2.9: Crashes on "x(:, :)=speye(1)", David Bateman, 2006/10/24
- Re: [Pkg-octave-devel] Bug#394982: octave2.9: Crashes on "x(:, :)=speye(1)",
Rafael Laboissiere <=
- Re: [Pkg-octave-devel] Bug#394982: octave2.9: Crashes on "x(:, :)=speye(1)", Quentin Spencer, 2006/10/24
- Re: [Pkg-octave-devel] Bug#394982: octave2.9: Crashes on "x(:, :)=speye(1)", John W. Eaton, 2006/10/24
- Re: [Pkg-octave-devel] Bug#394982: octave2.9: Crashes on "x(:, :)=speye(1)", David Bateman, 2006/10/24
- Re: [Pkg-octave-devel] Bug#394982: octave2.9: Crashes on "x(:,, David Bateman, 2006/10/24
- Re: [Pkg-octave-devel] Bug#394982: octave2.9: Crashes on "x(:,, Rafael Laboissiere, 2006/10/24
- Re: [Pkg-octave-devel] Bug#394982: octave2.9: Crashes on "x(:,, John W. Eaton, 2006/10/24
- Re: [Pkg-octave-devel] Bug#394982: octave2.9: Crashes on "x(:,, Kim Hansen, 2006/10/25
- Re: [Pkg-octave-devel] Bug#394982: octave2.9: Crashes on "x(:,, Rafael Laboissiere, 2006/10/25
- Re: [Pkg-octave-devel] Bug#394982: octave2.9: Crashes on "x(:,, David Bateman, 2006/10/25
- Re: [Pkg-octave-devel] Bug#394982: octave2.9: Crashes on "x(:,, John W. Eaton, 2006/10/25