Bug report #2204: Crashing QGIS when add new raster layer ecw - QGIS Application - QGIS Issue Tracking

Bug report #2204

Crashing QGIS when add new raster layer ecw

Added by spasm - about 15 years ago. Updated about 14 years ago.

Status:	Closed
Priority:	Low
Assignee:	nobody -
Category:	Rasters
Affected QGIS version:		Regression?:	No
Operating System:	Windows	Easy fix?:	No
Pull Request or Patch supplied:		Resolution:	fixed
Crashes QGIS or corrupts data:		Copied to github as #:	12264

Description

I deliberately crashed QGIS in Vista 64 as it was taking a very long time to calculate standard deviations for setting max and min display values on a very large ECW image. On restarting QGIS I am unable to load another ECW image, QGIS just crashes. I suspect that there is some wreckage in the form of temp files on my hard drive but I can't find and manually delete these files. Rebooting the computer does not help refresh QGIS.

ecw_vista32_qgis_openedproject_withecw_from_winxp.jpg (108 KB) Gerhard Spieles, 2010-05-01 10:45 AM

ecw_vista32_qgiscrash_addrasterlayer_ecw.jpg (118 KB) Gerhard Spieles, 2010-05-01 10:46 AM

ecw_vista_qgis1.5.0_load_ecw.jpg (95.1 KB) Gerhard Spieles, 2010-05-02 03:49 PM

ecw_vista_qgis1.5.0_crash.jpg (43.3 KB) Gerhard Spieles, 2010-05-02 03:50 PM

qgis_crash_win7_32bit_ecw.png (128 KB) Gerhard Spieles, 2010-08-22 01:51 PM

History

#1 Updated by Giovanni Manghi about 15 years ago

There were already issues reported about windows 64bit and I believe that until a native version for this architecture will not be available it will be hard to have qgis working properly.

In any case I'll ask you to try reproduce the problem on a 32bit machine (or post a sample data) in order to verify if it is really a 64 bit/windows issue or not.

Thanks

#2 Updated by spasm - about 15 years ago

After a few crashes, Qgis was again able to open ECW images, so I may not be able to reproduce the bug on demand. The ECW code may be fine, it might be a question of Qgis cleaning up after a crash. I have lots of Windows crashes, so the crash could also be an external event.

#3 Updated by Giovanni Manghi about 15 years ago

Status changed from Open to Closed
Resolution set to invalid

Replying to [comment:2 spasm]:

I have lots of Windows crashes, so the crash could also be an external event.

well then try to figure it, possibly testing a 32 bit/stable windows box, then if is the case, reopen the ticket.

thanks.

#4 Updated by Gerhard Spieles over 14 years ago

Resolution deleted (~~invalid~~)
Status changed from Closed to Feedback

The problem exist on windows vista, not on windows xp.
On vista, open a new project an add ecw raster layer, qgis crash.
Open an existing project made on my desktop PC (winxp maschine), with my laptop (vista 32 bit), all is fine, the ecw spatial photos are shown and i can work normaly in the project.
But whe i try to add a new ecw raster spatial photo, qgis crash.

Pictures are attached.

What happens in win7, I deon@t know.

#5 Updated by Giovanni Manghi over 14 years ago

Hi,

I can add ecw rasters with no problems under Windows Seven 32bit and qgis trunk.

Does it happens in all Vista machines you have tested? Eventually can you test another Vista machine to try rule if it is a local problem?

#6 Updated by Gerhard Spieles over 14 years ago

Hello,

i have tested it on another vista maschine with the same result.

I coudn@t test it with 1.5.0, because the osgeo4w installation don@t support ecw.

#7 Updated by Giovanni Manghi over 14 years ago

I coudn@t test it with 1.5.0, because the osgeo4w installation don@t support ecw.

It does support ecw. You just need to install the gdal16-ecw library and copy the necessary dll into the system32 folder.

So... please test osgeo4w/qgis-dev to see if is a bug related only to 1.4 and/or just to the standalone installer.

#8 Updated by Gerhard Spieles over 14 years ago

Hi,

thank you for the information. On my xp maschine, qgis trunk can now open ecw.

I have tried it on the vista machine, but qgis crash also with 1.5.0 r13412m, open an ecw raster.

Files are attached.

#9 Updated by Giovanni Manghi over 14 years ago

Hi,

can you post/link a sample of the ecw rasters are causing qgis to crash?

#10 Updated by Gerhard Spieles over 14 years ago

Hi,

the file has 10 MB. It is only for testing and not for public use.
Please send your Mailadress to [email protected].

Thank you

Gerhard

#11 Updated by Giovanni Manghi over 14 years ago

Test made with the problematic raster under Windows Seven with qgis trunk and 1.4 (osgeo4w). No crashes.

#12 Updated by Gerhard Spieles over 14 years ago

Status changed from Feedback to Closed
Resolution set to wontfix

Use win7 or winxp

#13 Updated by Gerhard Spieles over 14 years ago

Status changed from Closed to Feedback
Resolution deleted (~~wontfix~~)

Hello,

add raster ecw in QGIS 1.5.0 and use win7, 32bit, QGIS crash.
On Win XP there is no problem.
The problem seems to result from the ntdll.dll in windows.
This dll translates between windows and the application.
Screenshot from the eventlog is attached

#14 Updated by luca76 - over 14 years ago

confirming: works only in XP. On windows 7 machines it crashes.

#15 Updated by Paolo Cavallini about 14 years ago

Could you please test it again with new gdal ecw driver?

#16 Updated by Gerhard Spieles about 14 years ago

Can you send me the new ecw-dlls to [email protected]?