Hi,
QGIS is currently crashing in Fedora 21+ when listing the supported ogr
drivers. In QgsVectorFileWriter::ogrDriverList, there is a portion of code
// Unfortunately it seems that there is no simple way to detect if
// OGR SQLite driver is compiled with SpatiaLite support.
// We have HAVE_SPATIALITE in QGIS, but that may differ from OGR
// http://lists.osgeo.org/pipermail/gdal-dev/2012-November/034580.html
// -> test if creation failes
[...]
OGRDataSourceH ds = OGR_Dr_CreateDataSource( poDriver, TO8F( QString(
"/vsimem/spatialitetest.sqlite" ) ), options );
which then (see stack trace below) ends up calling OGR2SQLITE_Register,
which itself calls sqlite3_auto_extension which is a macro defined as
sqlite3_api->auto_extension. This last call crashes because sqlite3_api
is null.
Reading the code it looks like the only way for sqlite3_api to be
initialized is via ogrsqlitevirtualogr.cpp::sqlite3_extension_init,
which is supposedly called when loading the extension via SQLite. I
don't see sqlite3_extension_init being called otherwise, so I wonder
whether this is a bug in ogr, or whether QGIS is doing something it
shouldn't.
The backtrace is:
(gdb) bt
#0 0x00007ffff4ad36ce in OGR2SQLITE_Register() () at
ogrsqlitevirtualogr.cpp:2460
#1 0x00007ffff4ab0148 in OGRSQLiteDataSource::OpenOrCreateDB(int)
(this=this@entry=0x4278780, flags=flags@entry=6) at
ogrsqlitedatasource.cpp:455
#2 0x00007ffff4ab473e in OGRSQLiteDataSource::Create(char const*,
char**) (this=this@entry=0x4278780, pszNameIn=pszNameIn@entry=0x42786d8
"/vsimem/spatialitetest.sqlite",
papszOptions=papszOptions@entry=0x1e695d0) at ogrsqlitedatasource.cpp:610
#3 0x00007ffff4ab8666 in OGRSQLiteDriver::CreateDataSource(char const*,
char**) (this=<optimized out>, pszName=0x42786d8
"/vsimem/spatialitetest.sqlite", papszOptions=0x1e695d0)
at ogrsqlitedriver.cpp:203
#4 0x00007ffff4aa5f82 in OGR_Dr_CreateDataSource(OGRSFDriverH, char
const*, char**) (hDriver=0x11f4b80, pszName=<optimized out>,
papszOptions=<optimized out>) at ogrsfdriver.cpp:74
#5 0x00007ffff3d2477e in QgsVectorFileWriter::ogrDriverList() () at
/usr/src/debug/qgis-2.6.0/src/core/qgsvectorfilewriter.cpp:2127
(gdb) frame 0
#0 0x00007ffff4ad36ce in OGR2SQLITE_Register () at
ogrsqlitevirtualogr.cpp:2460
2460 sqlite3_auto_extension ((void (*)(void))
OGR2SQLITE_static_register);
(gdb) print sqlite3_api
$1 = (const sqlite3_api_routines *) 0x0
Thanks for any inputs.
Best,
Sandro
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