Mapserver returns blank pages

[antti siukola]

Hi!

It would be great if any of the developers could comment on this
problem or maybe someone who has found a solution to the problem. I
want to point out again that this problem prevents us to move to
production if no solution is found.

Regards,

Antti S

On 7/13/06, antti siukola <siukola.antti at gmail.com> wrote:
> I've noticed that these Segmantation faults are logged even if there's
> no blank page returned so I don't think that these two have a
> relation. At least I get segmatation faults quite randomly.
>
> Cheers
>
> Antti S
>
> On 7/13/06, Stuart Eve <stuarteve at lparchaeology.com> wrote:
> >
> >  After checking the apache error log we also get:
> >
> >  [Thu Jul 13 10:22:02 2006] [notice] child pid 9429 exit signal Segmentation
> > fault (11)
> >
> >  We are using mapserver 4.8.3, php 4.3.10 and apache 2.0.53 running on a
> > Suse 10 box.
> >
> >  The mapscript functions that seem to be in use when the crash is caused
> > are: queryByAttributes(), getResult() and getShape()
> >
> >  should we list this as a bug on Bugzilla?
> >
> >  Thanks
> >
> >  Stuart
> >
> >
> >
> >  Stuart Eve wrote:
> >  We are having (and have had for while_ this problem - and it does seem
> > reasonably random.
> >
> >  The main trouble is that I don't know how to get php to spew out the error
> > - and instead it just returns this blank screen, instead of returning the
> > error as it does normally. I had first thought that it was because I was
> > using php mapscript and had nested functions - but it seems like lots of
> > people are coming up with the same thing.
> >
> >  Anyone got any ideas?
> >
> >  Matthew Kane wrote:
> > I wasn't actually using php mapscript in the mapfile that gave me
> > segmentation faults. Strangely, I got the map to display on a Sun machine if
> > I removed all references to true-type fonts and relied only on bitmap fonts
> > for my labels. Even more strange is that when I moved the same file to a red
> > hat server, mapserver simply hangs. No error message in either the browser
> > or the apache error logs, just hanging. The same thing happened when I tried
> > running the mapfile with shp2img. Has anyone else experienced this problem?
> > Could this be a bug in one of the third party libraries that mapserver
> > relies on? Or more likely a problem in how we code our mapfiles?
> >
> >  Thanks,
> >  Matt
> >
> >
> > On 7/12/06, antti siukola <siukola.antti at gmail.com> wrote:
> > > Hi!
> > >
> > > As we can see a lot of people are suffering from this but no one seems
> > > to have any solutions. Does this only appear with php mapscript? Is
> > > this a bug? A known bug? Is there a solutions? This is a fatal error
> > > since this kind of behavior avoids us to use php mapscript in
> > > production, in case this is a php mapscript issue as it seems to be.
> > >
> > > Regards,
> > >
> > > Antti S
> > >
> > > On 6/13/06, Matthew Kane < markane at indiana.edu> wrote:
> > > > I second that question, as I am receiving Segmentation Faults as well...
> > > >
> > > > Matt
> > > >
> > > > On 6/13/06, antti siukola < siukola.antti at gmail.com> wrote:
> > > > > Hi!
> > > > >
> > > > > Every time MapServer returns a blank page I find "[notice] child pid
> > > > > xxxx exit signal Segmentation fault (11)" from apache's error_log. Any
> > > > > thoughts? Blank pages are returned randomly.
> > > > >
> > > > > AnttiS
> > > > >
> > > >
> > >
> >
> >
> >
> >  --
> > Stuart Eve
> > L - P : Archaeology
> > stuarteve at lparchaeology.com
> >
> >
> >  --
> > Stuart Eve
> > L - P : Archaeology
> > stuarteve at lparchaeology.com
> >
> >
>