[GRASS-dev] [GRASS GIS] #3676: Errors when running r.li.* modules

[GRASS GIS]

#3676: Errors when running r.li.* modules
-----------------------------+-------------------------
 Reporter:  veroandreo       |      Owner:  grass-dev@…
     Type:  defect           |     Status:  new
 Priority:  normal           |  Milestone:  7.6.0
Component:  Raster           |    Version:  svn-trunk
 Keywords:  r.li, landscape  |        CPU:  x86-64
 Platform:  Linux            |
-----------------------------+-------------------------
 I get different errors when trying to run different r.li.* modules. Here
 some examples:

 {{{
 r.li.shannon --overwrite input=landclass96 at PERMANENT
 config=forest_mov_win
 output=forest_mov_win_sh
 munmap_chunk(): invalid pointer
 }}}

 The map is created but cannot be read or displayed:

 {{{
 Failed to run command 'd.rast map=forest_mov_win_sh at user1'. Details:

 GRASS_INFO_WARNING(12641,1): LZ4 decompression error
 GRASS_INFO_END(12641,1)

 GRASS_INFO_ERROR(12641,2): Error uncompressing null data for row 474 of
 <forest_mov_win_sh>
 GRASS_INFO_END(12641,2)

 GRASS 7.7.svn (nc_spm_08_grass7):~ > r.univar forest_mov_win_sh
 WARNING: LZ4 decompression error
 ERROR: Error uncompressing null data for row 474 of <forest_mov_win_sh>
 }}}

 Further attempts:

 {{{
 r.mapcalc "forest = if(landclass96 == 5, 1, null())"
 r.li.edgedensity input=forest config=forest_mov_win output=forest_edge_mw
 double free or corruption (!prev) <<<--- THIS
 Aborted (core dumped)
 }}}

 ... but map is created and no error related to compression.

 Instead, if I do something equivalent:

 {{{
 r.li.edgedensity --verbose input=landclass96 at PERMANENT
 config=forest_mov_win output=forest_edge patch_type=5
 munmap_chunk(): invalid pointer <<<--- THIS
 Aborted (core dumped)

 r.univar forest_edge
 WARNING: LZ4 decompression error
 ERROR: Error uncompressing null data for row 474 of <forest_edge>
 }}}

 I attach the config file for reproducibility. And here's the thread in
 grass-dev: https://lists.osgeo.org/pipermail/grass-
 dev/2018-October/090155.html with Markus' valgrind test.

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Ticket URL: <https://trac.osgeo.org/grass/ticket/3676>
GRASS GIS <https://grass.osgeo.org>