fop trunk hangs

[Johan Pretorius]

Hi

Downloaded SVN trunk today.
Compiled fine.

I use gentoo and do have fop installed.
I was able to create a few test pdfs but when I tried to create the final version of my pdf it hanged.
I enabled debug logging with log4j and saw a StackOverFlow error.
That is when I started using the trunk version.

No more StackOverFlow errors but the pdf creation process hangs before completion. CPU usage 100%.

I tried the -fo -pdf AND the -xsl -xml -pdf route for fop from commandline and an ant script.

No luck.

I added debugging statements with XSLT function extension when using the -xsl -xml -pdf route.
I have chapters and paragraphs in them. I print the number of paragraphs when I enter a chapter and count them down as they are processed. It get to the last paragraph then hangs.

If I alter my source xml to include more than the one test chapter it hangs at the last paragraph without going on to the next chapter.

[Tom Browder]

On Tue, Jun 23, 2009 at 09:23, Johan
Pretorius<johanpretorius@...> wrote:
...
> No more StackOverFlow errors but the pdf creation process hangs before
> completion. CPU usage 100%.

Is it possible you are out of RAM?  fop takes a large amount of heap
space I've found (I had to set my java to use a max of 256 Mb to get
through a pdf creation).

Regards,

-Tom

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[Andreas Delmelle-2]

On 23 Jun 2009, at 16:23, Johan Pretorius wrote:


Hi

> Downloaded SVN trunk today.
> Compiled fine.
>
> I use gentoo and do have fop installed.
> I was able to create a few test pdfs but when I tried to create the  
> final
> version of my pdf it hanged.
> I enabled debug logging with log4j and saw a StackOverFlow error.
> That is when I started using the trunk version.
>
> No more StackOverFlow errors but the pdf creation process hangs before
> completion. CPU usage 100%.

Which Java (version+vendor) are you using? Did you try a different one?

Can you post the FO file in question, so we can check this on our end?


Thanks in advance,

Andreas


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[Johan Pretorius]

Hi

I did increase my heapspace to a 512mb like so in the fop bash file:
fop_exec_command="exec \"$JAVACMD\" -Xmx512m $LOGCHOICE $LOGLEVEL -classpath \"$LOCALCLASSPATH\" $FOP_OPTS org.apache.fop.cli.Main $fop_exec_args"

Secondly:
java version "1.6.0_13"
Java(TM) SE Runtime Environment (build 1.6.0_13-b03)
Java HotSpot(TM) 64-Bit Server VM (build 11.3-b02, mixed mode)

Thirdly attached is my fo file.fo-da.fo

Dankie

Andreas Delmelle-2 wrote:

On 23 Jun 2009, at 16:23, Johan Pretorius wrote:

Hi

> Downloaded SVN trunk today.
> Compiled fine.
>
> I use gentoo and do have fop installed.
> I was able to create a few test pdfs but when I tried to create the  
> final
> version of my pdf it hanged.
> I enabled debug logging with log4j and saw a StackOverFlow error.
> That is when I started using the trunk version.
>
> No more StackOverFlow errors but the pdf creation process hangs before
> completion. CPU usage 100%.

Which Java (version+vendor) are you using? Did you try a different one?

Can you post the FO file in question, so we can check this on our end?


Thanks in advance,

Andreas

[Andreas Delmelle-2]

On 24 Jun 2009, at 13:11, Johan Pretorius wrote:

Hi

> I did increase my heapspace to a 512mb like so in the fop bash file:
> fop_exec_command="exec \"$JAVACMD\" -Xmx512m $LOGCHOICE $LOGLEVEL -
> classpath
> \"$LOCALCLASSPATH\" $FOP_OPTS org.apache.fop.cli.Main $fop_exec_args"
>
> Secondly:
> java version "1.6.0_13"
> Java(TM) SE Runtime Environment (build 1.6.0_13-b03)
> Java HotSpot(TM) 64-Bit Server VM (build 11.3-b02, mixed mode)

Which vendor? Is it a Sun VM? I tried your FO file on Apple Java 1.5  
and 1.6, and encountered no problem whatsoever. It races through, and  
produces a neat 40-page document...


Regards

Andreas


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[Vincent Hennebert-2]

Hi Johan,

Johan Pretorius wrote:

> Hi
>
> I did increase my heapspace to a 512mb like so in the fop bash file:
> fop_exec_command="exec \"$JAVACMD\" -Xmx512m $LOGCHOICE $LOGLEVEL -classpath
> \"$LOCALCLASSPATH\" $FOP_OPTS org.apache.fop.cli.Main $fop_exec_args"
>
> Secondly:
> java version "1.6.0_13"
> Java(TM) SE Runtime Environment (build 1.6.0_13-b03)
> Java HotSpot(TM) 64-Bit Server VM (build 11.3-b02, mixed mode)
>
> Thirdly attached is my fo file.
> http://www.nabble.com/file/p24182803/fo-da.fo fo-da.fo

There’s a bug in the handling of footnotes that triggers an infinite
loop in some conditions, which your FO file appears to meet. Can you
please create a bug report on Bugzilla, attaching the FO file? This will
help us keep track of the issue.
https://issues.apache.org/bugzilla/enter_bug.cgi?product=Fop

<snip/>


Thanks,
Vincent

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[Andreas Delmelle-2]

On 25 Jun 2009, at 12:18, Vincent Hennebert wrote:

>>
>> Thirdly attached is my fo file.
>> http://www.nabble.com/file/p24182803/fo-da.fo fo-da.fo
>
> There’s a bug in the handling of footnotes that triggers an infinite
> loop in some conditions, which your FO file appears to meet.

Confirmed. Seems I tried my local sandbox yesterday, where the issue  
appears to be fixed. Trying again with a fresh checkout indeed  
exhibits the described behavior...


Regards

Andreas
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