Bug report #16643: Core dump when zooming - QGIS Application - QGIS Issue Tracking

Bug report #16643

Core dump when zooming

Added by Saber Razmjooei over 7 years ago. Updated about 7 years ago.

Status:	Closed
Priority:	High
Assignee:	Nyall Dawson
Category:	Map Canvas
Affected QGIS version:	master	Regression?:	Yes
Operating System:		Easy fix?:	No
Pull Request or Patch supplied:	No	Resolution:
Crashes QGIS or corrupts data:	Yes	Copied to github as #:	24543

Description

I think there were reports before with zooming closely in QGIS master results in crashing.

I have managed to consistently reproduce the crash in this project. If you open the project and keep zooming in, it will result in crash.

If you change the layer style to single symbol, the crash does not happen.

Also, note there are missing SVGs for the layer.

bt_16643.txt (8.95 KB) Saber Razmjooei, 2017-05-31 02:02 PM

Associated revisions

Revision 942f431f
Added by Nyall Dawson about 7 years ago

Fix crash when rendering with SVG based symbols and SVG cache is filled

When the svg cache was full, any attempt to render an svg from the
cache would crash QGIS.

Fixes #16643

History

#1 Updated by Giovanni Manghi over 7 years ago

Status changed from Open to Feedback

only master?

#2 Updated by Saber Razmjooei over 7 years ago

Here is the link to the example project:
https://www.dropbox.com/s/ivcz957i5oe154x/crash_16643.zip?dl=0

@Gio, yes... It works fine in 2.18

#3 Updated by Giovanni Manghi over 7 years ago

Status changed from Feedback to Open

#4 Updated by Saber Razmjooei over 7 years ago

Here is the debug info:

src/gui/qgsmapcanvas.cpp: 1380: (wheelEvent) [4580ms] Wheel event delta 120 src/core/qgsmapsettings.cpp: 220: (updateDerived) [1ms] Map units per pixel (x,y) : 0.06904668923386814, 0.0603955543154952 src/core/qgsmapsettings.cpp: 221: (updateDerived) [0ms] Pixmap dimensions (x,y) : 757, 882 src/core/qgsmapsettings.cpp: 222: (updateDerived) [0ms] Extent dimensions (x,y) : 52.26834375003818423, 53.26887890626676381 src/core/qgsmapsettings.cpp: 223: (updateDerived) [0ms] 292919.9010904474998824,91304.0750523731403518 : 292972.1694341975380667,91357.3439312794071157 src/core/qgsmapsettings.cpp: 224: (updateDerived) [0ms] Adjusted map units per pixel (x,y) : 0.06904668923386814, 0.06904668923388335 src/core/qgsmapsettings.cpp: 225: (updateDerived) [0ms] Recalced pixmap dimensions (x,y) : 757, 882.00000000019429081 src/core/qgsmapsettings.cpp: 226: (updateDerived) [0ms] Scale (assuming meters as map units) = 1:260.9638645547358351 src/core/qgsmapsettings.cpp: 227: (updateDerived) [0ms] Rotation: 0 degrees src/gui/qgsmapcanvas.cpp: 485: (refresh) [1ms] CANVAS refresh scheduling src/gui/qgsmapcanvasmap.cpp: 48: (paint) [3ms] map paint DIFFERENT SIZE: img 757,882 item 1514,1764 src/core/qgsmaprendererjob.cpp: 224: (prepareJobs) [5ms] CACHE VALID: 0 src/core/qgsmaprendererparalleljob.cpp: 63: (start) [111ms] QThreadPool max thread count is 4 src/gui/qgsmapcanvas.cpp: 1380: (wheelEvent) [3ms] Wheel event delta 120 src/core/qgsmapsettings.cpp: 220: (updateDerived) [0ms] Map units per pixel (x,y) : 0.03452334461685718, 0.0301977771577476 src/core/qgsmapsettings.cpp: 221: (updateDerived) [0ms] Pixmap dimensions (x,y) : 757, 882 src/core/qgsmapsettings.cpp: 222: (updateDerived) [0ms] Extent dimensions (x,y) : 26.13417187496088445, 26.6344394531333819 src/core/qgsmapsettings.cpp: 223: (updateDerived) [1ms] 292932.2259244758170098,91314.2161243949376512 : 292958.3600963507778943,91340.8505638480710331 src/core/qgsmapsettings.cpp: 224: (updateDerived) [0ms] Adjusted map units per pixel (x,y) : 0.03452334461685718, 0.03452334461685919 src/core/qgsmapsettings.cpp: 225: (updateDerived) [0ms] Recalced pixmap dimensions (x,y) : 757, 882.00000000005115908 src/core/qgsmapsettings.cpp: 226: (updateDerived) [0ms] Scale (assuming meters as map units) = 1:130.48193227707727715 src/core/qgsmapsettings.cpp: 227: (updateDerived) [0ms] Rotation: 0 degrees src/gui/qgsmapcanvas.cpp: 485: (refresh) [0ms] CANVAS refresh scheduling src/gui/qgsmapcanvasmap.cpp: 48: (paint) [1ms] map paint DIFFERENT SIZE: img 757,882 item 3028,3528 src/gui/qgsmapcanvas.cpp: 653: (stopRendering) [1ms] CANVAS stop rendering! src/core/qgsmaprendererparalleljob.cpp: 114: (cancelWithoutBlocking) [0ms] PARALLEL cancel at status 1 src/core/qgsmaprendererjob.cpp: 224: (prepareJobs) [0ms] CACHE VALID: 0 QGIS died on signal 11src/core/qgsmaprendererparalleljob.cpp: 63: (start) [63ms] QThreadPool max thread count is 4 Could not attach to process. If your uid matches the uid of the target process, check the setting of /proc/sys/kernel/yama/ptrace_scope, or try again as the root user. For more details, see /etc/sysctl.d/10-ptrace.conf ptrace: Operation not permitted. No thread selected No stack. gdb returned 0 Aborted (core dumped)