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<p class=MsoNormal>In the file c:\software\gdal\gcore\gdaldefaultoverviews.cpp
in the function <span style='font-size:10.0pt;font-family:"Courier New"'>GDALDefaultBuildOverviews::BuildOverviews()
on line 517 when I try to build overviews for an erdas imagine file .img and
using USE_RRD=YES config option the <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>poOverDS
= poBand->GetDataset(); <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>call
always returns NULL and then there is no check for NULL after that on line 519 which
causes the application to seg fault. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>poOverDS->oOvManager.poBaseDS
= poDS; // KABOOM!!! because poOverDS is NULL.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>Is
this a bug? Where should the dataset of the band be assigned during the
overview creation process?<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>Best
regards,</span><o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Martin Chapman<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
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