Mapserver returns blank pages

[antti siukola]

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
>
>