question about mplib/mkiv

question about mplib/mkiv

[Thomas A. Schmitz]

Hi,

for my presentations, I have a graphical counter on every slide, so  
metapost has to write a graphic for every slide/page that ConTeXt  
produces. This works with mkii, but when I process my file in mkiv, I  
get this error after page 16:

report >> error: 15 output files written:  ..
Transcript written on mpout.log.

Memory size overflow!
[15.15]
report >> error: no-term
no-error
report >> error: no-term
no-error
report >> error: no-term
no-error
report >> error: no-term
no-error
report >> error: no-term
no-error [16.16]
report >> error: no-term
no-error
report >> error: no-term
no-error
report >> error: no-term
no-error
report >> error: no-term
no-error
report >> error: no-term
no-error [17.17]

Is there any way that I can influence the memory size? 15 doesn't seem  
like a whole lot...

Best

Thomas
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Re: question about mplib/mkiv

[Hans Hagen]

Thomas A. Schmitz wrote:
> Hi,
> 
> for my presentations, I have a graphical counter on every slide, so  
> metapost has to write a graphic for every slide/page that ConTeXt  
> produces. This works with mkii, but when I process my file in mkiv, I  
> get this error after page 16:
> 
> report >> error: 15 output files written:  ..
> Transcript written on mpout.log.
> 
> Memory size overflow!
> [15.15]
> report >> error: no-term
> no-error
> report >> error: no-term
> no-error
> report >> error: no-term
> no-error
> report >> error: no-term
> no-error
> report >> error: no-term
> no-error [16.16]
> report >> error: no-term
> no-error
> report >> error: no-term
> no-error
> report >> error: no-term
> no-error
> report >> error: no-term
> no-error
> report >> error: no-term
> no-error [17.17]
> 
> Is there any way that I can influence the memory size? 15 doesn't seem  
> like a whole lot...

hm, maybe something messy with the graphic ... i allocate 2MB of memory 
for metafun so ...

anyhow,

\appendtoks\ctxlua{metapost.reset("metafun")}\to\everyshipout

or so, may help, although it's better to see what's the real reason

does

texexec --pdftex --automp yourfile.tex

run ok?

-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
      tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com
                                              | www.pragma-pod.nl
-----------------------------------------------------------------
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___________________________________________________________________________________

Re: question about mplib/mkiv

[Thomas A. Schmitz]

On Apr 24, 2008, at 1:44 AM, Hans Hagen wrote:

> hm, maybe something messy with the graphic ... i allocate 2MB of  
> memory
> for metafun so ...
>
> anyhow,
>
> \appendtoks\ctxlua{metapost.reset("metafun")}\to\everyshipout
>
> or so, may help, although it's better to see what's the real reason
>
> does
>
> texexec --pdftex --automp yourfile.tex
>
> run ok?

Yes, that runs OK. If I insert the \appendtoks... command into the  
preamble, I get errors while processing, so there appears to be  
something wrong with my graphic. I'll see whether I can nail it down  
this afternoon.

Thanks, and best

Thomas
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___________________________________________________________________________________

Re: question about mplib/mkiv

[Taco Hoekwater]

Hans Hagen wrote:
> Thomas A. Schmitz wrote:
>> Hi,
>>
>> for my presentations, I have a graphical counter on every slide, so  
>> metapost has to write a graphic for every slide/page that ConTeXt  
>> produces. This works with mkii, but when I process my file in mkiv, I  
>> get this error after page 16:
>>
>> report >> error: 15 output files written:  ..
>> Transcript written on mpout.log.
>>
>> Memory size overflow!
>> [15.15]

That error indeed comes from mplib, but from the overflow test in
realloc(), not the memory array "overflow" function. You get this
error when you attempt to allocate more than 2^31 bytes. Since that
clearly should not happen, there is a bug somewhere in MPlib. But
I'll need your source to dig it out. (likely you do something we
have never tested yet).


Best wishes,
Taco


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___________________________________________________________________________________

Re: question about mplib/mkiv

[Thomas Schmitz]

On Thu, 24 Apr 2008 08:38:51 +0200
  Taco Hoekwater <taco@elvenkind.com> wrote:

> 
> That error indeed comes from mplib, but from the 
>overflow test in
> realloc(), not the memory array "overflow" function. You 
>get this
> error when you attempt to allocate more than 2^31 bytes. 
>Since that
> clearly should not happen, there is a bug somewhere in 
>MPlib. But
> I'll need your source to dig it out. (likely you do 
>something we
> have never tested yet).
> 

Thanks Taco. I will try to produce a minimal example this 
afternoon/evening. The problem occurs with one of my 
presentation modes, but I have other documents with the 
same module which don't trigger the error, so I'll have to 
spend some time debugging.

Thomas
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___________________________________________________________________________________

Re: question about mplib/mkiv

[Thomas A. Schmitz]

On Apr 24, 2008, at 8:38 AM, Taco Hoekwater wrote:

> That error indeed comes from mplib, but from the overflow test in
> realloc(), not the memory array "overflow" function. You get this
> error when you attempt to allocate more than 2^31 bytes. Since that
> clearly should not happen, there is a bug somewhere in MPlib. But
> I'll need your source to dig it out. (likely you do something we
> have never tested yet).
>

Just for the record: Taco found and squished this bug; the new luatex  
trunk doesn't have it anymore. Thanks for the swift action!

Best

Thomas
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___________________________________________________________________________________

Re: question about mplib/mkiv

[Hans Hagen]

Thomas A. Schmitz wrote:
> On Apr 24, 2008, at 8:38 AM, Taco Hoekwater wrote:
> 
>> That error indeed comes from mplib, but from the overflow test in
>> realloc(), not the memory array "overflow" function. You get this
>> error when you attempt to allocate more than 2^31 bytes. Since that
>> clearly should not happen, there is a bug somewhere in MPlib. But
>> I'll need your source to dig it out. (likely you do something we
>> have never tested yet).
>>
> 
> Just for the record: Taco found and squished this bug; the new luatex  
> trunk doesn't have it anymore. Thanks for the swift action!

the next mkiv upload will have a bit better reporter for such cases


-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
      tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com
                                              | www.pragma-pod.nl
-----------------------------------------------------------------
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : https://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________