[Foo2zjs-maintainer] Bug#548334: Bug#548334: foo2zjs: Segmentation fault when printing in color

[Michael Koch]

Hello Christoph,


On Mon, Sep 28, 2009 at 11:07:30AM +0200, Christoph Haas wrote:
> Michael,
> 
> thanks for your quick response.
> 
> Michael Koch schrieb:
> >> D [25/Sep/2009:16:35:54 +0200] [Job 110] cat: Schreibfehler:
> >> Daten<C3><BC>bergabe unterbrochen (broken pipe)
> >> D [25/Sep/2009:16:35:54 +0200] [Job 110] Segmentation fault
> >> D [25/Sep/2009:16:35:54 +0200] [Job 110] sed: Kann 65 Elemente nicht auf
> >> stdout schreiben: Daten<C3><BC>bergabe unterbrochen (broken pipe)
> > 
> > This looks like the culprit.
> > 
> >> I'm not sure how to further debug it. I have tried to install the
> >> Lenny versions of "ghostscript" and "foo2zjs" to no avail.
> >>
> >> I'm also not sure if this bug is connected to #534414. The package version
> >> of ghostscript I have installed is "8.70~dfsg-2" and according to the
> >> bug report the issue was resolved in 8.64 already.
> > 
> > I don't think this bug is connected to #534414. I think its a bug in
> > /usr/bin/foo2hp2600-wrapper. This is a shell script. Can you try to
> > to track the bug down in this file a bit? There are not too many places
> > using cat and sed.
> 
> I have set the /usr/bin/foo2hp2600-wrapper script to "-x" in the shebang
> line to see what commands are run:
> 
> D [28/Sep/2009:10:54:14 +0200] [Job 118] + USER=
> D [28/Sep/2009:10:54:14 +0200] [Job 118] + GS=gs -q -dBATCH -dSAFER -dQUIET
> -dNOPAUSE
> D [28/Sep/2009:10:54:14 +0200] [Job 118] + foo2zjs-pstops -n -c -w
> D [28/Sep/2009:10:54:14 +0200] [Job 118] + cat
> D [28/Sep/2009:10:54:14 +0200] [Job 118] + gs -q -dBATCH -dSAFER -dQUIET
> -dNOPAUSE -sPAPERSIZE=letter -g4960x7015 -r600x600 -sDEVICE=bitcmyk
> -dCOLORSCREEN -dMaxBitmap=500000000 -sOutputFile=|cat 1>&3
> /tmp/icc.usecie.ps -_
> D [28/Sep/2009:10:54:14 +0200] [Job 118] + foo2hp -r600x600 -g4960x7015 -p1
> -m1 -n1 -d1 -s7 -c -b1 -u 1x80 -l 1x80 -J  -U  -B -A -D1
> D [28/Sep/2009:10:54:15 +0200] [Job 118] cat: Schreibfehler:
> Daten<C3><BC>bergabe unterbrochen (broken pipe)
> D [28/Sep/2009:10:54:15 +0200] [Job 118] Segmentation fault
> D [28/Sep/2009:10:54:15 +0200] [Job 118] sed: Kann 65 Elemente nicht auf
> stdout schreiben: Daten<C3><BC>bergabe unterbrochen (broken pipe)
> D [28/Sep/2009:10:54:15 +0200] [Job 118] + [ -x /usr/bin/logger ]
> D [28/Sep/2009:10:54:15 +0200] [Job 118] + logger -t foo2hp2600-wrapper -p
> lpr.info -- gs -sPAPERSIZE=letter -g4960x7015 -r600x600 -sDEVICE=bitcmyk
> -dCOLORSCREEN -dMaxBitmap=500000000  /tmp/icc.usecie.ps
> D [28/Sep/2009:10:54:15 +0200] [Job 118] + logger -t foo2hp2600-wrapper -p
> lpr.info -- foo2hp -r600x600 -g4960x7015 -p1 -m1 -n1 -d1 -s7 -c -b1 -u 1x80
> -l 1x80   -B -A
> D [28/Sep/2009:10:54:15 +0200] [Job 118] + [ 1 -eq 0 ]
> D [28/Sep/2009:10:54:15 +0200] [Job 118] + exit 0
> D [28/Sep/2009:10:54:15 +0200] [Job 118] renderer exited with status 0
> D [28/Sep/2009:10:54:15 +0200] [Job 118] kid4 exited with status 0
> D [28/Sep/2009:10:54:15 +0200] [Job 118] kid3 finished
> D [28/Sep/2009:10:54:15 +0200] [Job 118] Read 72 bytes of print data...
> D [28/Sep/2009:10:54:15 +0200] [Job 118] Wrote 72 bytes of print data...
> 
> Sorry for the german output. Not sure how I can set it to english for
> debugging. Anyway it appears like Ghostscript (gs) is called (although I
> wonder why the "letter" format is chosen - I'm using A4 everywhere in my
> settings). And gs pipes to foo2hp. And somehow during this piping something
> unexpected is happening.
> 
> Strangely I can print *some* documents. I have created a new inkscape
> drawing  and put the Debian logo and a few colored circles into it. That
> printed well. However my hardly more complicated image (I wanted to print a
> sign for our office door with our company logo and a little text on it)
> didn't print.
> 
> Any ideas? Thanks!

This looks like the segfault happens in foo2hp or so.

Is it possible that you edit foo2hp2600-wrapper and make a copy of the current
document to some place? Then we can try to execute the steps done by it
manually to reproduce the bug and see where the bug is for real.

Or if this not possible that you create at least a file containing a document
that I can feed here into foo2hp2600-wrapper together with your options.


Cheers,
Michael