Bug report #3380

Crash when repeatedly switching symbology renderer

Added by adbosco - almost 13 years ago. Updated almost 12 years ago.

Affected QGIS version:master Regression?:No
Operating System:Gentoo Easy fix?:No
Pull Request or Patch supplied:No Resolution:worksforme
Crashes QGIS or corrupts data:Yes Copied to github as #:13440


For this test, I loaded a shapefile with 1393 categories and repeatedly changed the symbology renderer and the column to be classified. After doing it for about 15 to 20 times, qgis crashed.

This behavior seems to be associated with a failure to synchronize the change in symbology with rendering to the canvas. It is certain to happen if one tries many different symbology settings repeatedly, but it sometimes happens unexpectedly when normally setting/resetting symbology in a normal pace (a production work situation).

This bug report relates to a build with the following characteristics:

SVN revision: 14989

compiler: g++ (Gentoo 4.4.4-r2 p1.2, pie-0.4.5) 4.4.4

build type: RELEASE

CXX_FLAGS: -g -O3 -DNDEBUG (it also crashes without the -g flag)

Similar behavior was also reported for 1.6 ubuntu binary and 1.5 gentoo source, built with -O2 -DNDEBUG flags.

Cannot reproduce in a DEBUG build.

If the information above does not help, please respond to this ticket and I will perform extra tests as needed.

gdb-qgis-g.txt Magnifier (16.2 KB) adbosco -, 2011-01-02 04:03 AM

gdb-qgis-g-qt-g.txt Magnifier (34.5 KB) adbosco -, 2011-01-02 12:21 PM


#1 Updated by adbosco - almost 13 years ago

Attached another backtrace file, now with Qt compiled with the -g flag, too. Hopefully this one has more usefull information.

#2 Updated by Jürgen Fischer almost 13 years ago

see also #3391

#3 Updated by Giovanni Manghi almost 12 years ago

  • Target version changed from Version 1.7.0 to Version 1.7.4

#4 Updated by Giovanni Manghi almost 12 years ago

  • Pull Request or Patch supplied set to No
  • Assignee deleted (nobody -)
  • Status changed from Open to Feedback
  • Status info deleted (0)
  • Crashes QGIS or corrupts data set to No
  • Affected QGIS version set to master

I cannot replicate the issue on master and 1.7.3 on both windows/osgeo4w and Ubuntu. Please check again and report back.

#5 Updated by Giovanni Manghi almost 12 years ago

  • Crashes QGIS or corrupts data changed from No to Yes

#6 Updated by Giovanni Manghi almost 12 years ago

  • Resolution set to worksforme
  • Status changed from Feedback to Closed

Closing for lack of feedback. Reopen if necessary.

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