[ka-Map-users] Crash with Gmap demo

[Jeff McKenna]

For the record I have a guess at what was happening - you might not have 
been using the latest "MapServer version 4.9 Upgrade" package, dated 
July 20th.  If you use an older one that error would occur.

jeff




Jeff McKenna wrote:
> hmm.  I just tried a fresh MS4W 2.1 with 4.9, and ka-map 0.2 but no error.
> 
> But thanks for the heads up.  I'll keep an eye out for the error.
> 
> jeff
> 
> 
> 
> 
> Jeff Dege wrote:
>> Sorry.  I'm used to lists that set Reply-To: to the list server.
>>
>> I tried MS4W 2.1 with the 4.9 upgrade package, and yes, I get the same
>> error.
>>
>> So I backed up to just MS4W 2.1, without the 4.9 upgrade package, and
>> the problem disappeared.
>>
>>> -----Original Message-----
>>> From: ka-map-users-bounces at lists.maptools.org 
>>> [mailto:ka-map-users-bounces at lists.maptools.org] On Behalf Of Jeff 
>>> McKenna
>>> Sent: Wednesday, August 09, 2006 11:49 AM
>>> To: ka-map-users
>>> Subject: Re: [ka-Map-users] Crash with Gmap demo
>>>
>>> once again: please please please please please always respond to the
>>> mailing list.
>>>
>>> I recommend you try MS4W 2.1 with the 4.9 upgrade package, and see if
>>> you get the same error.
>>>
>>> jeff
>>>
>>>
>>>
>>> Jeff Dege wrote:
>>>> MS4W 2.0 - with the MapServer 4.9 Upgrade.
>>>>
>>>>> -----Original Message-----
>>>>> From: ka-map-users-bounces at lists.maptools.org 
>>>>> [mailto:ka-map-users-bounces at lists.maptools.org] On Behalf Of Jeff 
>>>>> McKenna
>>>>> Sent: Wednesday, August 09, 2006 10:47 AM
>>>>> To: ka-map-users
>>>>> Subject: Re: [ka-Map-users] Crash with Gmap demo
>>>>>
>>>>> As I said, please always respond to the list.
>>>>>
>>>>> Can you provide which exact MS4W version you are using? (2.1, or
>>>>> 1.5.5...kinda thing)
>>>>>
>>>>> jeff
>>>>>
>>>>>
>>>>> Jeff Dege wrote:
>>>>>> Same error, same place.
>>>>>>
>>>>>> Crashes with gmap75.map, does not with gmap75_wms.map.
>>>>>>> -----Original Message-----
>>>>>>> From: ka-map-users-bounces at lists.maptools.org 
>>>>>>> [mailto:ka-map-users-bounces at lists.maptools.org] On Behalf Of 
>>>>>>> Jeff McKenna
>>>>>>> Sent: Wednesday, August 09, 2006 7:08 AM
>>>>>>> To: ka-map-users
>>>>>>> Subject: Re: [ka-Map-users] Crash with Gmap demo
>>>>>>>
>>>>>>> well first you should be using gmap_ms4w_ms48.zip from the MS4W 
>>>>>>> downloads page: 
>>>>>>> http://www.maptools.org/ms4w/index.phtml?page=downloads.html
>>>>>>>
>>>>>>> and if you have the same problem please let the list know.
>>>>>>>
>>>>>>> jeff
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> Jeff Dege wrote:
>>>>>>>> I'm trying to get the ka-map-0.2 demo running with gmap-ms46.
>>>>>>>>
>>>>>>>> I configured everything as described, and got a crash in 
>>>>>>> php-cgi.exe:
>>>>>>>>   The instruction at "0x77fcd977" referenced memory at 
>>>>> "0x00000038".
>>>>>>>> The memory could not be "written".
>>>>>>>>
>>>>>>>> Gmap-ms46 comes with a number of map files, so I tried editing
>>>>>>>> kamap\include\config.php to reference gmap75_wms.map, instead of
>>>>>>>> gmap75.map, and it worked.
>>>>>>>>
>>>>>>>> So made a copy of gmap75_wms.map (which worked), and did a 
>>>>>>> diff against
>>>>>>>> gmap75.map (which didn't) and proceeded to change one 
>>>>> line at a time
>>>>>>>> until I had the minimum difference that triggered the crash.
>>>>>>>>
>>>>>>>> There are two.
>>>>>>>>
>>>>>>>> In gmap75.map (which doesn't work), I find:
>>>>>>>>
>>>>>>>>   #
>>>>>>>>   # Start of web interface definition
>>>>>>>>   #
>>>>>>>>   WEB
>>>>>>>>     MINSCALE 2000000
>>>>>>>>     MAXSCALE 50000000
>>>>>>>>   #
>>>>>>>>   # On Windows systems, /tmp and /tmp/ms_tmp/ should be 
>>>>>>> created at the
>>>>>>>> root   # of the drive where the .MAP file resides.
>>>>>>>>   #
>>>>>>>>     IMAGEPATH "/ms4w/tmp/ms_tmp/"     IMAGEURL "/ms_tmp/"
>>>>>>>>   #  LOG "/tmp/gmap.log"
>>>>>>>>   END
>>>>>>>>
>>>>>>>>
>>>>>>>> In my gmap75_test.map (which does work), I have:
>>>>>>>>
>>>>>>>>   #
>>>>>>>>   # Start of web interface definition
>>>>>>>>   #
>>>>>>>>   WEB
>>>>>>>>     MINSCALE 2000000
>>>>>>>>     MAXSCALE 50000000
>>>>>>>>   #
>>>>>>>>   # On Windows systems, /tmp and /tmp/ms_tmp/ should be 
>>>>>>> created at the
>>>>>>>> root   # of the drive where the .MAP file resides.
>>>>>>>>   #
>>>>>>>>     IMAGEPATH "/ms4w/tmp/ms_tmp/"     IMAGEURL "/ms_tmp/"
>>>>>>>>   END
>>>>>>>>
>>>>>>>>   PROJECTION
>>>>>>>>     "init=epsg:42304"
>>>>>>>>   END
>>>>>>>>
>>>>>>>> If I remove the PROJECTION section from my gmap75_test.map, 
>>>>>>> I get the
>>>>>>>> crash.  Or if I add the commented-out LOG line in the WEB 
>>>>>>> section, I get
>>>>>>>> the crash.
>>>>>>>>
>>>>>>>> This is using a freshly-installed kmap_0.2_ms4w.zip and 
>>>>>>> gmap_ms46.zip.
>>>>>>>> On Windows, using the ms4w of Mapserver 4.9.
>>>>>>>>
>>>>>>>> It has all the signs of being a random memory stomp - 
>>> unitialized
>>>>>>>> variables, somewhere in the php executable or the 
>>>>> php_mapscript.dll.
> 
>