[mapserver-users] crash mapserver with some specific jpeg output and truetype symbol over raster

[Oliver Christen]

thank you Steve
I will do it

best regards
Oliver

On Tue, Nov 15, 2011 at 11:48 PM, Lime, Steve D (DNR)
<Steve.Lime at state.mn.us> wrote:
> This is enough to open a bug, can you do that? -Steve
>
> -----Original Message-----
> From: mapserver-users-bounces at lists.osgeo.org [mailto:mapserver-users-bounces at lists.osgeo.org] On Behalf Of Oliver Christen
> Sent: Tuesday, November 15, 2011 7:15 AM
> To: mapserver-users at lists.osgeo.org
> Subject: [mapserver-users] crash mapserver with some specific jpeg output and truetype symbol over raster
>
> hi all
>
> Im experimenting some weird behavior with some jpeg output on a
> Mapserver 6.0.0
>
> I have two layers: a raster layer and a watermark using a truetype
> symbol over it.
> When requesting the jpeg output, at the very specific FORMATOPTION
> QUALITY=88, Mapserver crash with a "Floating point exception".
>
> The image is still generated (???), but the error make it impossible to
> server the image with fastcgi, as the Mapserver error trigger an error
> 500 in apache.
>
> I DONT have any problem if:
> 1) I request a png image
> 2) I change the FORMATOPTION QUALITY=88 to 87 or 89
>
> I have prepared a minimal testcase which allow to reproduce the problem:
>
> http://publicshare.camptocamp.com/mapserver/testcase.zip
>
> which can be triggered with:
>
> shp2img -m testcase.map -l "ch.swisstopo.pixelkarte-farbe-pk200.noscale
> ch.swisstopo.watermark" -i jpeg -s 256 256 -e 624800.0 132400.0 625440.0
> 133040.0 > test.jpg
>
> or:
>
> /usr/lib/cgi-bin/mapserv -nh
> "QUERY_STRING=map=testcase.map&mode=map&layers=ch.swisstopo.pixelkarte-farbe-pk200.noscale+ch.swisstopo.watermark&mapext=624800.0+132400.0+625440.0+133040.0&mapsize=256+256"
>  > test2.jpeg
>
> I just had a look using gdb (but I dont have enough knowledge to get any
> info from this sadely):
>
> gdb /usr/lib/cgi-bin/mapserv
> GNU gdb (GDB) 7.0.1-debian
> Copyright (C) 2009 Free Software Foundation, Inc.
> License GPLv3+: GNU GPL version 3 or later
> <http://gnu.org/licenses/gpl.html>
> This is free software: you are free to change and redistribute it.
> There is NO WARRANTY, to the extent permitted by law. Type "show copying"
> and "show warranty" for details.
> This GDB was configured as "x86_64-linux-gnu".
> For bug reporting instructions, please see:
> <http://www.gnu.org/software/gdb/bugs/>...
> Reading symbols from /usr/lib/cgi-bin/mapserv...(no debugging symbols
> found)...done.
> (gdb) run -nh
> "QUERY_STRING=map=testcase.map&mode=map&layers=ch.swisstopo.pixelkarte-farbe-pk200.noscale+ch.swisstopo.watermark&mapext=624800.0+132400.0+625440.0+133040.0&mapsize=256+256"
>  > test2.jpeg
> Starting program: /usr/lib/cgi-bin/mapserv -nh
> "QUERY_STRING=map=testcase.map&mode=map&layers=ch.swisstopo.pixelkarte-farbe-pk200.noscale+ch.swisstopo.watermark&mapext=624800.0+132400.0+625440.0+133040.0&mapsize=256+256"
>  > test20.jpeg
> [Thread debugging using libthread_db enabled]
>
> Program received signal SIGFPE, Arithmetic exception.
> 0x00000000004e20dd in ?? ()
> (gdb) backtrace
> #0 0x00000000004e20dd in ?? ()
> #1 0x000000000051401e in jpeg_stream_term_destination ()
> #2 0x00007ffff74dac6f in jpeg_finish_compress () from /usr/lib/libjpeg.so.62
> #3 0x00000000005144af in ?? ()
> #4 0x00000000005168ea in ?? ()
> #5 0x0000000000454fbf in ?? ()
> #6 0x000000000041e1bb in main ()
>
> I had a look at Mapserver 6.0.1 changelog but I couldnt find a bug which
> may be similar.
> Is this a known issue?
> Could someone tell me if it is "enough" to open a bug?
>
> Thanks in advance
> best regards
> Oliver
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>
>