[GRASS-dev] [GRASS GIS] #1933: v.overlay ends with sigsegv in cut lines by polygon

[GRASS GIS]

#1933: v.overlay ends with sigsegv in cut lines by polygon
-----------------------+----------------------------------------------------
 Reporter:  mapycz     |       Owner:  grass-dev@…              
     Type:  defect     |      Status:  new                      
 Priority:  blocker    |   Milestone:  7.0.0                    
Component:  Vector     |     Version:  unspecified              
 Keywords:  v.overlay  |    Platform:  Unspecified              
      Cpu:  x86-64     |  
-----------------------+----------------------------------------------------
 we tried cut contours by polygon but v.overaly crashed

 our training dta consist of contour lines and polygon
 these data  is in tar.bz2 archive in this location:
 http://work.talasek.sk:2222/download/grass_error.tar.bz2

 here is some debug

 GRASS 7.0.svn (test1):~/grassgis/grass-svn > gdb v.overlay
 GNU gdb (GDB) 7.4.1-debian
 Copyright (C) 2012 Free Software Foundation, Inc.
 License GPLv3+: GNU GPL version 3 or later
 <http://gnu.org/licenses/gpl.html>
 This is free software: you are free to change and redistribute it.
 There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
 and "show warranty" for details.
 This GDB was configured as "x86_64-linux-gnu".
 For bug reporting instructions, please see:
 <http://www.gnu.org/software/gdb/bugs/>...
 Reading symbols from /usr/local/grass-7.0.svn/bin/v.overlay...done.
 (gdb) run ainput=cnt_sm atype=line binput=cut_poly operator=and
 output=cnt_cut1 --overwrite
 Starting program: /usr/local/grass-7.0.svn/bin/v.overlay ainput=cnt_sm
 atype=line binput=cut_poly operator=and output=cnt_cut1 --overwrite
 [Thread debugging using libthread_db enabled]
 Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
 WARNING: Vector map <cnt_cut1> already exists and will be overwritten
 WARNING: Table <cnt_cut1> linked to vector map <cnt_cut1> does not exist
 Copying vector features from <cnt_sm at miro>...
  100%
 Copying vector features from <cut_poly at miro>...
  100%
 Breaking lines...
    0%
 Program received signal SIGSEGV, Segmentation fault.
 0x00007ffff7b7e55b in break_lines (Map=0x7fffffffc040, List_break=0x0,
 List_ref=0x61f8d0, type=6, Err=0x0, check=0) at break_lines.c:360
 360                              !touch1_w && nodex == BBox->E) ||
 (gdb) info local
 APoints = 0x1276530
 BPoints = 0x1276560
 Points = 0x1276590
 AXLines = 0x7ffff753328c
 BXLines = 0x7fffffffa9b0
 ACats = 0x12765c0
 BCats = 0x12765e0
 Cats = 0x1276600
 i = 0
 j = -1
 k = 32767
 l = -20688
 ret = -138628762
 atype = 4
 btype = 4
 aline = 17849
 bline = 17849
 found = 0
 iline = 0
 nlines = 13
 nlines_org = 17861
 naxlines = 32767
 nbxlines = -7760
 nx = 32767
 xx = 0x0
 yx = 0x0
 zx = 0x0
 ABox = {N = 5557464.4957634434, S = 5506178.6524737561, E =
 790483.12121040502, W = 725733.38919512555, T = 0, B = 0}
 BBox = 0x7fffe7415fe0
 List = 0x1276620
 nbreaks = 0
 touch1_n = 1
 touch1_s = 1
 touch1_e = 1
 touch1_w = 0
 touch2_n = 1
 touch2_s = 1
 touch2_e = 1
 touch2_w = 1
 is3d = 0
 node = 17862
 anode1 = 17862
 anode2 = 17863
 bnode1 = 17862
 bnode2 = 17863
 nodex = 725733.38919512555
 nodey = 5556926.5740271173
 a_is_ref = 1
 b_is_ref = 1
 break_a = 1
 break_b = 0
 (gdb)

-- 
Ticket URL: <http://trac.osgeo.org/grass/ticket/1933>
GRASS GIS <http://grass.osgeo.org>