I ran mapserver locally ran the specific wms request locally so getting this 
error - Assertion failed: (MS_RENDERER_RAWDATA(image->format) || 
(MS_RENDERER_PLUGIN(image->format) && rb)), function msDrawRasterLayerGDAL, 
file mapdrawgdal.c, line 126.
Abort trap: 6
Any idea regarding this?

and in logs it's coming like this -

Fri Oct 20 21:56:56 2023].137990 msDrawMap(): rendering using outputformat 
named mypng (AGG/PNG).

[Fri Oct 20 21:56:56 2023].138020 msDrawMap(): WMS/WFS set-up and query, 0.000s

[Fri Oct 20 21:56:56 2023].198332 
msDrawRasterLayerLow(PICT-INHEND19-psQwiZ1L4t): entering.

[Fri Oct 20 21:56:58 2023].803667 
msDrawRasterLayerLow(PICT-INHEND19-psQwiZ1L4t): entering.

[Fri Oct 20 22:10:13 2023].219765 drawGDAL() error coming from here: Unable to 
access file. GDALDatasetRasterIO() failed: IReadBlock failed at X offset 497, Y 
offset 740: GDALWMS: Unable to download block 497, 740.



________________________________
From: Raghav Singh
Sent: 04 October 2023 11:09
To: gdal-dev@lists.osgeo.org <gdal-dev@lists.osgeo.org>
Subject: WMS layer issue at higher zoom level

Hi,

I am trying to get a layer from wms and at higher zoom levels I am getting this 
error - msDrawMap(): Image handling error. Failed to draw layer named 
'PICT-INHEND19-psQwiZ1L4t'. drawGDAL(): Unable to access file. 
GDALDatasetRasterIO() failed: /tmp/mapfilePassthru-v2-temp-HxmyxI, band 1: 
IReadBlock failed at X offset 1064, Y offset 1551.

So, for this I checked from the imageservice side the mapfile is being created 
correctly and it is also present there and the mapfile contains a gserve 
request for getting the tiles - that is also working fine. So getting this 
error from mapserver only and tried to put debug level 5 and other things also 
in the mapfile but couldn't get any other error, only this is coming. So need 
help in this if anybody knows what exactly is this and i can i debug mapserver 
locally if i want to then i can figure out the exact point where the error is 
coming from.

Thanks,
Raghav Singh
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