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The same error shows when trying to import from GPKG to SL or PostGIS (and again only on Windows).

setting up a win 2.18 build to debug... in the meantime verifying on linux env

please @giovanni add an exact procedure to replicate.

e.g. from what panel do you do d&d? from the same db manager? from layer panel? from a file? more datail and procedural steps are necessary

Giovanni Manghi wrote:

screencast attached. The same operation works on Linux.

not confirmed on OSGeo4W qgis-rel-dev (2.18.13) dragging a spatialite layer... on what disk the layer is available? a network disk?

the log is different in my case:
..\..\..\..\..\src\core\qgsmimedatautils.cpp(111) : (QgsMimeDataUtils::decodeUriList) [36333ms] vector:spatialite:prova_giovanni:dbname='//vmware-host/Shared Folders/Desktop/data/issue_16296/prova_giovanni.sqlite' table="prova_giovanni" (geometry) sql=
..\..\..\..\..\src\core\qgsmimedatautils.cpp(47) : (QgsMimeDataUtils::Uri::Uri) [15ms] encData: vector:spatialite:prova_giovanni:dbname='//vmware-host/Shared Folders/Desktop/data/issue_16296/prova_giovanni.sqlite' table="prova_giovanni" (geometry) sql=
..\..\..\..\..\src\core\qgsmimedatautils.cpp(71) : (QgsMimeDataUtils::Uri::Uri) [0ms] type:vector key:spatialite name:prova_giovanni uri:dbname='//vmware-host/Shared Folders/Desktop/data/issue_16296/prova_giovanni.sqlite' table="prova_giovanni" (geometry) sql= supportedCRS: supportedFormats:

due the fact that Desktop points to the host desktop in my VM

@luigi: not sure if it is related, but in current master the Drag&Drop in the browser (also) segfaults my QGIS.

Test:
- load 2 shapefiles
- save one of them as gpkg in /tmp (all fine untill now)
- now in browser (or actually in the 'datamanager/onebutton') drag another shape into the gpkg
- with me it segfaults then

(not sure if it is related though)

Warning 6: creation option '' is not formatted with the key=value format
Warning 6: layer creation option '' is not formatted with the key=value format
ERROR 6: The PNG driver does not support update access to existing datasets.

ERROR 6: The PNG driver does not support update access to existing datasets.

ERROR 6: The PNG driver does not support update access to existing datasets.

ERROR 1: Random access not supported for /vsizip
ERROR 1: posix_spawnp() failed
QGIS died on signal 11[New LWP 18384]
[New LWP 18385]
[New LWP 18386]
[New LWP 18387]
[New LWP 18388]
[New LWP 18389]
[New LWP 18392]
[New LWP 18393]
[New LWP 18394]
[New LWP 18395]
[New LWP 18396]
[New LWP 18397]
[New LWP 18407]
[New LWP 18420]
[New LWP 18421]
[New LWP 18438]

warning: td_ta_new failed: generic error

warning: File "/usr/lib/x86_64-linux-gnu/libthread_db-1.0.so" auto-loading has been declined by your `auto-load safe-path' set to "$debugdir:$datadir/auto-load".
To enable execution of this file add
    add-auto-load-safe-path /usr/lib/x86_64-linux-gnu/libthread_db-1.0.so
line to your configuration file "/home/richard/.gdbinit".
To completely disable this security protection add
    set auto-load safe-path /
line to your configuration file "/home/richard/.gdbinit".
For more information about this security protection see the
"Auto-loading safe path" section in the GDB manual.  E.g., run from the shell:
    info "(gdb)Auto-loading safe path" 

warning: Unable to find libthread_db matching inferior's thread library, thread debugging will not be available.
Cannot access memory at address 0x7f26d5724148

warning: Unable to find dynamic linker breakpoint function.
GDB will be unable to debug shared library initializers
and track explicitly loaded dynamic code.

warning: td_ta_new failed: generic error

warning: File "/usr/lib/x86_64-linux-gnu/libthread_db-1.0.so" auto-loading has been declined by your `auto-load safe-path' set to "$debugdir:$datadir/auto-load".

warning: Unable to find libthread_db matching inferior's thread library, thread debugging will not be available.
Failed to read a valid object file image from memory.
Couldn't get registers: No such process.
[Current thread is 1 (LWP 18383)]
Couldn't get registers: No such process.
Couldn't get registers: No such process.
Python Exception <class 'gdb.error'> Couldn't get registers: No such process.: 
Couldn't get registers: No such process.
/home/richard/bin/qgis: line 5: 18383 Killed                  /home/richard/bin/qgis_all/master/debug/bin/qgis "$@" 

Richard, I can't say, btw Browser is completely different code respect Db Manager. Try to notify this issue to Alessando Pasotti or Even Rouault

Richard Duivenvoorde wrote:

@luigi: not sure if it is related, but in current master the Drag&Drop in the browser (also) segfaults my QGIS.

Test:
- load 2 shapefiles
- save one of them as gpkg in /tmp (all fine untill now)
- now in browser (or actually in the 'datamanager/onebutton') drag another shape into the gpkg
- with me it segfaults then

(not sure if it is related though)

[...]

preparing PR