Debian/texlive/context: Segfault in mpost

Debian/texlive/context: Segfault in mpost

[Johan Sandblom]

On Debian testing/unstable with
texlive-metapost/testing uptodate 2005.dfsg.2-2
texlive-base/testing uptodate 2005.dfsg.2-3
texlive-common/testing uptodate 2005.dfsg.2-3
texlive-base-bin/testing uptodate 2005.dfsg.2-2

and the new context package from www.tug.org/texlive/Debian version
2006.08.08 the following text file processes without error but has no
graphic

\starttext
\startuseMPgraphic{test}
draw (0,0)..(1,0)..(1,1)..(1,0)..cycle scaled 5cm withcolor black ;
\stopuseMPgraphic
\useMPgraphic{test}
\stoptext

Further investigation revealed that

johans@smoke:~$ mpost -progname=metafun -mem=metafun mptest-mpgraph.mp
This is MetaPost, Version 0.901 (Web2C 7.5.5)
(mptest-mpgraph.mpSegmentation fault

Mpost segfaulted, which I have never seen and have no idea how to
pursue. More details:

johans@smoke:~$ mpost --version
MetaPost 0.901 (Web2C 7.5.5)
kpathsea version 3.5.5
Copyright 2005 AT&T Bell Laboratories.
Kpathsea is copyright 2005 Karl Berry and Olaf Weber.
There is NO warranty.  Redistribution of this software is
covered by the terms of both the MetaPost copyright and
the Lesser GNU General Public License.
For more information about these matters, see the file
named COPYING and the MetaPost source.
Primary author of MetaPost: John Hobby.
Kpathsea written by Karl Berry, Olaf Weber, and others.


johans@smoke:~$ locate metafun.mem
/etc/texmf/web2c/metafun.mem
/var/lib/texmf/web2c/metafun.mem
-- 
Johan Sandblom  N8, MRC, Karolinska sjh
t +46851776108  17176 Stockholm
m +46735521477  Sweden
"What is wanted is not the will to believe, but the
will to find out, which is the exact opposite"
- Bertrand Russell

Re: Debian/texlive/context: Segfault in mpost

[Norbert Preining]

On Mit, 08 Nov 2006, Johan Sandblom wrote:
> johans@smoke:~$ locate metafun.mem
> /etc/texmf/web2c/metafun.mem
> /var/lib/texmf/web2c/metafun.mem

The mem file in /etc/texmf/web2c seems VERY FISHY!!! Please remove it.
Probably metapost loads a wrong metafun.mem file.

Best wishes

Norbert

-------------------------------------------------------------------------------
Dr. Norbert Preining <preining@logic.at>                    Università di Siena
Debian Developer <preining@debian.org>                         Debian TeX Group
gpg DSA: 0x09C5B094      fp: 14DF 2E6C 0307 BE6D AD76  A9C0 D2BF 4AA3 09C5 B094
-------------------------------------------------------------------------------
AMERSHAM (n.)
The sneeze which tickles but never comes. (Thought to derive from the
Metropolitan Line tube station of the same name where the rails always
rattle but the train never arrives.)
			--- Douglas Adams, The Meaning of Liff


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Re: Debian/texlive/context: Segfault in mpost

[Johan Sandblom]

I did. No change.

Regards, Johan

2006/11/8, Norbert Preining <preining@logic.at>:
> On Mit, 08 Nov 2006, Johan Sandblom wrote:
> > johans@smoke:~$ locate metafun.mem
> > /etc/texmf/web2c/metafun.mem
> > /var/lib/texmf/web2c/metafun.mem
>
> The mem file in /etc/texmf/web2c seems VERY FISHY!!! Please remove it.
> Probably metapost loads a wrong metafun.mem file.
>
> Best wishes
>
> Norbert
>
> -------------------------------------------------------------------------------
> Dr. Norbert Preining <preining@logic.at>                    Università di Siena
> Debian Developer <preining@debian.org>                         Debian TeX Group
> gpg DSA: 0x09C5B094      fp: 14DF 2E6C 0307 BE6D AD76  A9C0 D2BF 4AA3 09C5 B094
> -------------------------------------------------------------------------------
> AMERSHAM (n.)
> The sneeze which tickles but never comes. (Thought to derive from the
> Metropolitan Line tube station of the same name where the rails always
> rattle but the train never arrives.)
>                         --- Douglas Adams, The Meaning of Liff
>


-- 
Johan Sandblom  N8, MRC, Karolinska sjh
t +46851776108  17176 Stockholm
m +46735521477  Sweden
"What is wanted is not the will to believe, but the
will to find out, which is the exact opposite"
- Bertrand Russell

Re: Debian/texlive/context: Segfault in mpost

[Norbert Preining]

On Mit, 08 Nov 2006, Johan Sandblom wrote:
> texlive-metapost/testing uptodate 2005.dfsg.2-2
> texlive-base/testing uptodate 2005.dfsg.2-3
> texlive-common/testing uptodate 2005.dfsg.2-3
> texlive-base-bin/testing uptodate 2005.dfsg.2-2
> 
> and the new context package from www.tug.org/texlive/Debian version
> 2006.08.08 the following text file processes without error but has no
> graphic

Strange enough, on my computer I don't see this problem. The file
contains the graphics.

> johans@smoke:~$ mpost -progname=metafun -mem=metafun mptest-mpgraph.mp
> This is MetaPost, Version 0.901 (Web2C 7.5.5)
> (mptest-mpgraph.mpSegmentation fault

> johans@smoke:~$ locate metafun.mem
> /etc/texmf/web2c/metafun.mem
> /var/lib/texmf/web2c/metafun.mem

Maybe some other files in /etc/texmf/web2c are interfering. metapost
pool files would be an idea. Can you send me the list of files in
/etc/texmf/web2c?

I have thee ONLY mktex.cnf!!!


Best wishes

Norbert

-------------------------------------------------------------------------------
Dr. Norbert Preining <preining@logic.at>                    Università di Siena
Debian Developer <preining@debian.org>                         Debian TeX Group
gpg DSA: 0x09C5B094      fp: 14DF 2E6C 0307 BE6D AD76  A9C0 D2BF 4AA3 09C5 B094
-------------------------------------------------------------------------------
DUNGENESS (n.)
The uneasy feeling that the plastic handles of the overloaded
supermarket carrier bag you are carrying are getting steadily longer.
			--- Douglas Adams, The Meaning of Liff

Re: [NTG-context] Debian/texlive/context: Segfault in mpost

[Tobias Burnus]

Hi,

Norbert Preining wrote:
> On Mit, 08 Nov 2006, Johan Sandblom wrote:
>   
>> johans@smoke:~$ locate metafun.mem
>> /etc/texmf/web2c/metafun.mem
>> /var/lib/texmf/web2c/metafun.mem
>>     
> The mem file in /etc/texmf/web2c seems VERY FISHY!!! Please remove it.
> Probably metapost loads a wrong metafun.mem file.
>   
Not necessarily. One might actually be a symbolic link to the other.
Try the following to check this
  ls -l /etc/texmf/web2c/metafun.mem /var/lib/texmf/web2c/metafun.mem
and just to make sure also:
 ls -ld /etc/texmf/web2c /var/lib/texmf/web2c

The file used by TeX can actually found using:
   kpsewhich metafun.mem
and gives here:
  /var/lib/texmf/web2c/metafun.mem

Tobias

Re: Debian/texlive/context: Segfault in mpost

[Johan Sandblom]

Hi,

2006/11/8, Norbert Preining <preining@logic.at>:
> On Mit, 08 Nov 2006, Johan Sandblom wrote:
> > texlive-metapost/testing uptodate 2005.dfsg.2-2
> > texlive-base/testing uptodate 2005.dfsg.2-3
> > texlive-common/testing uptodate 2005.dfsg.2-3
> > texlive-base-bin/testing uptodate 2005.dfsg.2-2
> >
> > and the new context package from www.tug.org/texlive/Debian version
> > 2006.08.08 the following text file processes without error but has no
> > graphic
>
> Strange enough, on my computer I don't see this problem. The file
> contains the graphics.
>
> > johans@smoke:~$ mpost -progname=metafun -mem=metafun mptest-mpgraph.mp
> > This is MetaPost, Version 0.901 (Web2C 7.5.5)
> > (mptest-mpgraph.mpSegmentation fault
>
> > johans@smoke:~$ locate metafun.mem
> > /etc/texmf/web2c/metafun.mem
> > /var/lib/texmf/web2c/metafun.mem
>
> Maybe some other files in /etc/texmf/web2c are interfering. metapost
> pool files would be an idea. Can you send me the list of files in
> /etc/texmf/web2c?
>
> I have thee ONLY mktex.cnf!!!
>

There were several other files, among them a highly suspicious
plain.mem. However, removing all of them, and reinstalling the context
debian package (and thereby rebuilding the formats) did not solve the
problem. No new files ended up in /etc/texmf/web2c.

>
> Best wishes
>
> Norbert
>
> -------------------------------------------------------------------------------
> Dr. Norbert Preining <preining@logic.at>                    Università di Siena
> Debian Developer <preining@debian.org>                         Debian TeX Group
> gpg DSA: 0x09C5B094      fp: 14DF 2E6C 0307 BE6D AD76  A9C0 D2BF 4AA3 09C5 B094
> -------------------------------------------------------------------------------
> DUNGENESS (n.)
> The uneasy feeling that the plastic handles of the overloaded
> supermarket carrier bag you are carrying are getting steadily longer.
>                         --- Douglas Adams, The Meaning of Liff
>


-- 
Johan Sandblom  N8, MRC, Karolinska sjh
t +46851776108  17176 Stockholm
m +46735521477  Sweden
"What is wanted is not the will to believe, but the
will to find out, which is the exact opposite"
- Bertrand Russell

Re: [NTG-context] Debian/texlive/context: Segfault in mpost

[Johan Sandblom]

Hi,

2006/11/8, Tobias Burnus <burnus@net-b.de>:
> Hi,
>
> Norbert Preining wrote:
> > On Mit, 08 Nov 2006, Johan Sandblom wrote:
> >
> >> johans@smoke:~$ locate metafun.mem
> >> /etc/texmf/web2c/metafun.mem
> >> /var/lib/texmf/web2c/metafun.mem
> >>
> > The mem file in /etc/texmf/web2c seems VERY FISHY!!! Please remove it.
> > Probably metapost loads a wrong metafun.mem file.
> >
> Not necessarily. One might actually be a symbolic link to the other.
> Try the following to check this
>   ls -l /etc/texmf/web2c/metafun.mem /var/lib/texmf/web2c/metafun.mem
> and just to make sure also:
>  ls -ld /etc/texmf/web2c /var/lib/texmf/web2c

They were not links. No idea where they came from. Removing them did
not solve anything.

> The file used by TeX can actually found using:
>    kpsewhich metafun.mem
> and gives here:
>   /var/lib/texmf/web2c/metafun.mem

johans@smoke:~$ kpsewhich metafun.mem
/var/lib/texmf/web2c/metafun.mem

Regards, Johan

>
> Tobias
>


-- 
Johan Sandblom  N8, MRC, Karolinska sjh
t +46851776108  17176 Stockholm
m +46735521477  Sweden
"What is wanted is not the will to believe, but the
will to find out, which is the exact opposite"
- Bertrand Russell

Re: Debian/texlive/context: Segfault in mpost

[taco]

On Wed, Nov 08, 2006 at 07:01:00PM +0100, Johan Sandblom wrote:
> I did. No change.

I suspect this is 'the' mismatched array bug in web2c. 

If you have both main_memory.mpost and|or main_memory.metafun
in your texmf.cnf, and they are not the same value(s), then you 
can get segfaults (as well as various other bugs).

It is hard to be more verbose right now because my connection is
awful, but there should be some more info on this in the 
mailinglist archive.


Greetings, Taco

Re: Debian/texlive/context: Segfault in mpost

[Johan Sandblom]

2006/11/8, taco@glenfiddich.elvenkind.com <taco@glenfiddich.elvenkind.com>:
> On Wed, Nov 08, 2006 at 07:01:00PM +0100, Johan Sandblom wrote:
> > I did. No change.
>
> I suspect this is 'the' mismatched array bug in web2c.
>
> If you have both main_memory.mpost and|or main_memory.metafun
> in your texmf.cnf, and they are not the same value(s), then you
> can get segfaults (as well as various other bugs).

No, that does not appear to be it:

root@smoke:/etc/texmf# grep main_memory `kpsewhich texmf.cnf`
% main_memory.hugetex = 20000000
% main_memory is relevant only to initex, extra_mem_* only to non-ini.
% Thus, have to redump the .fmt file after changing main_memory; to add
main_memory = 1000000 % words of inimemory available; also applies to inimf&mp
main_memory.context = 1500000
main_memory.mpost = 1500000
main_memory.lambda = 2200000

> It is hard to be more verbose right now because my connection is
> awful, but there should be some more info on this in the
> mailinglist archive.
>
>
> Greetings, Taco
>
>
>


-- 
Johan Sandblom  N8, MRC, Karolinska sjh
t +46851776108  17176 Stockholm
m +46735521477  Sweden
"What is wanted is not the will to believe, but the
will to find out, which is the exact opposite"
- Bertrand Russell

Re: [NTG-context] Debian/texlive/context: Segfault in mpost

[Johan Sandblom]

It was the crucial clue, however, since I found

/usr/share/texmf-texlive/web2c/texmf.cnf

and removed it, which solved the problem!

Thank you all, Johan Sandblom

2006/11/8, Johan Sandblom <jsandblom@gmail.com>:
> 2006/11/8, taco@glenfiddich.elvenkind.com <taco@glenfiddich.elvenkind.com>:
> > On Wed, Nov 08, 2006 at 07:01:00PM +0100, Johan Sandblom wrote:
> > > I did. No change.
> >
> > I suspect this is 'the' mismatched array bug in web2c.
> >
> > If you have both main_memory.mpost and|or main_memory.metafun
> > in your texmf.cnf, and they are not the same value(s), then you
> > can get segfaults (as well as various other bugs).
>
> No, that does not appear to be it:
>
> root@smoke:/etc/texmf# grep main_memory `kpsewhich texmf.cnf`
> % main_memory.hugetex = 20000000
> % main_memory is relevant only to initex, extra_mem_* only to non-ini.
> % Thus, have to redump the .fmt file after changing main_memory; to add
> main_memory = 1000000 % words of inimemory available; also applies to inimf&mp
> main_memory.context = 1500000
> main_memory.mpost = 1500000
> main_memory.lambda = 2200000
>
> > It is hard to be more verbose right now because my connection is
> > awful, but there should be some more info on this in the
> > mailinglist archive.
> >
> >
> > Greetings, Taco
> >
> >
> >
>
>
> --
> Johan Sandblom  N8, MRC, Karolinska sjh
> t +46851776108  17176 Stockholm
> m +46735521477  Sweden
> "What is wanted is not the will to believe, but the
> will to find out, which is the exact opposite"
> - Bertrand Russell
>


-- 
Johan Sandblom  N8, MRC, Karolinska sjh
t +46851776108  17176 Stockholm
m +46735521477  Sweden
"What is wanted is not the will to believe, but the
will to find out, which is the exact opposite"
- Bertrand Russell

Re: Debian/texlive/context: Segfault in mpost

[taco]

On Wed, Nov 08, 2006 at 08:05:48PM +0100, Johan Sandblom wrote:
> main_memory = 1000000 % words of inimemory available; also applies to inimf&mp
> main_memory.context = 1500000
> main_memory.mpost = 1500000
please try deleting this line and see what happens. If that is not,
then probably your executable is the problem (i cannot reproduce the
crash otherwise, on linux nor windows)

Good luck,
Taco