File bug in trac

http://trac.osgeo.org/mapserver

With a 5mb attachement, you might need to separately upload it somewhere and 
post a URL, not sure what the attachment max size is for osgeo trac.

P

On 2010-01-29, at 4:40 PM, Roger André wrote:

> Alright, I've clipped the data sets down to areas just slightly larger than 
> the WMS bbox, cleaned up the map file, and replicated the WMS to make sure 
> that it still breaks.  The tgz file that contains the mapfile and 2 
> shapefiles is just under 5 MB.  Where should I file the bug, and can I attach 
> the data to the bug?
> 
> Thanks,
> 
> Roger
> --
> 
> 
> 
> On Fri, Jan 29, 2010 at 2:57 PM, Roger André <ran...@gmail.com> wrote:
> Hi Paul,
> 
> Ok.  I'll see if I can replicate the problem with a single data layer, and 
> will then package everything together so another developer can run it.
> 
> Thanks,
> 
> Roger
> --
> 
> 
> On Fri, Jan 29, 2010 at 2:16 PM, Paul Ramsey <pram...@opengeo.org> wrote:
> Lovely, Another AGG bug. Well the next thing is to package up your 
> environment so a developer can duplicate the problem on their rig. Figure out 
> which layer it is, so you only have to pack that data up. Since the issue is 
> arising in AGG, flag the ticket to the AGG module. When you pack up your map 
> file, remember to also pack up or strip out things like templates, font 
> libraries, symbol libraries, etc. Ideally, copy the whole mess to a new path 
> on your system ensure it does in fact run independently of the rest of your 
> installation.
> 
> Best,
> 
> Paul
> 
> On 2010-01-29, at 2:11 PM, Roger André wrote:
> 
>> Hi Paul,
>> 
>> Thanks for the advice. (Chris Schmidt suggested I do the same thing in IRC 
>> yesterday, and I forgot to try it.)
>> 
>> Below are the results of gdb.  It's fun to run, but uhm... not something I'm 
>> readily able to decipher (yet).
>> 
>> $ gdb /usr/lib/cgi-bin/mapserv
>> GNU gdb (GDB) 7.0-ubuntu
>> 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 "i486-linux-gnu".
>> For bug reporting instructions, please see:
>> <http://www.gnu.org/software/gdb/bugs/>...
>> Reading symbols from /usr/lib/cgi-bin/mapserv...done.
>> (gdb) run 
>> "QUERY_STRING=map=/var/www/mapfiles/seattle.map&layers=roads&styles=&service=WMS&width=256&format=image/png&request=GetMap&height=256&srs=EPSG:4326&version=1.1.1&bbox=-122.338256836,47.6586914062,-122.332763672,47.6641845703"
>> Starting program: /usr/lib/cgi-bin/mapserv 
>> "QUERY_STRING=map=/var/www/mapfiles/seattle.map&layers=roads&styles=&service=WMS&width=256&format=image/png&request=GetMap&height=256&srs=EPSG:4326&version=1.1.1&bbox=-122.338256836,47.6586914062,-122.332763672,47.6641845703"
>> [Thread debugging using libthread_db enabled]
>> 
>> Program received signal SIGSEGV, Segmentation fault.
>> 0x0740bbf2 in ?? () from /lib/tls/i686/cmov/libc.so.6
>> (gdb) bt
>> #0  0x0740bbf2 in ?? () from /lib/tls/i686/cmov/libc.so.6
>> #1  0x0740d868 in malloc () from /lib/tls/i686/cmov/libc.so.6
>> #2  0x006abbb7 in operator new(unsigned int) () from /usr/lib/libstdc++.so.6
>> #3  0x006abced in operator new[](unsigned int) () from 
>> /usr/lib/libstdc++.so.6
>> #4  0x080dbdd5 in void 
>> mapserver::render_scanlines<mapserver::rasterizer_scanline_aa<mapserver::rasterizer_sl_clip<mapserver::ras_conv_int>
>>  >, mapserver::scanline_u8, 
>> mapserver::renderer_scanline_aa_solid<mapserver::renderer_base<mapserver::pixfmt_alpha_blend_rgba<mapserver::blender_rgba_pre<mapserver::rgba8,
>>  mapserver::order_bgra>, mapserv_row_ptr_cache<int>, int> > > 
>> >(mapserver::rasterizer_scanline_aa<mapserver::rasterizer_sl_clip<mapserver::ras_conv_int>
>>  >&, mapserver::scanline_u8&, 
>> mapserver::renderer_scanline_aa_solid<mapserver::renderer_base<mapserver::pixfmt_alpha_blend_rgba<mapserver::blender_rgba_pre<mapserver::rgba8,
>>  mapserver::order_bgra>, mapserv_row_ptr_cache<int>, int> > >&) ()
>> #5  0x080ba7ac in T.1744 ()
>> #6  0x080bdbda in msDrawShadeSymbolAGG ()
>> #7  0x0813b3d2 in msDrawShadeSymbol ()
>> #8  0x0809ff17 in msDrawShape ()
>> #9  0x080a2cfe in msDrawVectorLayer ()
>> #10 0x080a343d in msDrawLayer ()
>> #11 0x080a4fd7 in msDrawMap ()
>> #12 0x08157d82 in msWMSGetMap ()
>> #13 0x0815cf36 in msWMSDispatch ()
>> #14 0x080e9924 in msOWSDispatch ()
>> #15 0x08056583 in main ()
>> (gdb) 
>> 
>> Roger
>> --
>> 
>> On Fri, Jan 29, 2010 at 1:38 PM, Paul Ramsey <pram...@opengeo.org> wrote:
>> Roger,
>> 
>> It looks like you're on Linux, so pull a stacktrace, it's fun!
>> 
>> gdb /path/to/mapserv
>> 
>> ... lots of info ...
>> 
>> (gdb) run 
>> "QUERY_STRING=map=/var/www/mapfiles/seattle.map&layers=roads&styles=&service=WMS&width=256&format=image/png&request=GetMap&height=256&srs=EPSG:4326&version=1.1.1&bbox=-122.338256836,47.6586914062,-122.332763672,47.6641845703"
>> 
>> then when you hit to segfault, do
>> 
>> (gdb) bt
>> 
>> bt stands for backtrace
>> 
>> now you'll have a lot more useful information about what went wrong,
>> 
>> Yours,
>> 
>> Paul
>> 
>> On Fri, Jan 29, 2010 at 1:27 PM, Roger André <ran...@gmail.com> wrote:
>> > Hi All,
>> >
>> > I'm experiencing some strange behavior that I would appreciate some help
>> > testing.  My MapServer 5.6 instance is segfaulting in response to certain
>> > WMS requests it is receiving from TileCache.  Below is one of the specific
>> > requests:
>> >
>> > http://localhost/cgi-bin/mapserv?map=/var/www/mapfiles/seattle.map&layers=roads&styles=&service=WMS&width=256&format=image/png&request=GetMap&height=256&srs=EPSG:4326&version=1.1.1&bbox=-122.338256836,47.6586914062,-122.332763672,47.6641845703
>> >
>> > I'd appreciate it if someone who has a layer that covers Seattle would try
>> > the bbox extents listed above and report back if it causes an error for
>> > them.
>> >
>> > FYI - When I set this bbox as the EXTENTS in my MAP, and the SIZE to 256
>> > 256, Mapserver delivers the image without any problem.
>> >
>> > Thanks,
>> >
>> > Roger
>> >
>> > _______________________________________________
>> > mapserver-users mailing list
>> > mapserver-users@lists.osgeo.org
>> > http://lists.osgeo.org/mailman/listinfo/mapserver-users
>> >
>> >
>> 
> 
> --
> Paul Ramsey
> OpenGeo - http://opengeo.org
> Breath in. Breath out. Ahhh. PostGIS.
> 
> 
> 
> 
> 

--
Paul Ramsey
OpenGeo - http://opengeo.org
PostGIS topical ointment. Cures slow maps.



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