[postgis-tickets] [PostGIS] #3416: topology: crash when loading topogeometry (regression)

[PostGIS]

#3416: topology: crash when loading topogeometry (regression)
---------------------+---------------------------
 Reporter:  rulus    |      Owner:  pramsey
     Type:  defect   |     Status:  new
 Priority:  medium   |  Milestone:  PostGIS 2.2.1
Component:  postgis  |    Version:  2.2.x
 Keywords:           |
---------------------+---------------------------
 Recent versions of the 2.2 branch fail to load (some?) topogeometries;
 using the toTopoGeom function leads to a database crash.

 Using gdb I got this backtrace:
 {{{
 Program received signal SIGSEGV, Segmentation fault.
 _box2d_to_hexwkb (bbox=bbox at entry=0x99, srid=31370) at
 postgis_topology.c:126
 126       p.x = bbox->xmin;
 (gdb) bt
 #0  _box2d_to_hexwkb (bbox=bbox at entry=0x99, srid=31370) at
 postgis_topology.c:126
 #1  0x00007efe26269757 in cb_getEdgeByFace (topo=0x55e7c0fa68d0,
 ids=0x7ffd4e19c098, numelems=0x7ffd4e19c0a4, fields=153, box=0x99) at
 postgis_topology.c:914
 #2  0x00007efe2792f115 in ?? () from /usr/lib/liblwgeom-2.2.so.2
 #3  0x00007efe279307bf in ?? () from /usr/lib/liblwgeom-2.2.so.2
 #4  0x00007efe27935e88 in lwt_AddLine () from /usr/lib/liblwgeom-2.2.so.2
 #5  0x00007efe27936642 in lwt_AddPolygon () from
 /usr/lib/liblwgeom-2.2.so.2
 #6  0x00007efe2626fbc5 in TopoGeo_AddPolygon (fcinfo=0x55e7c0f9f7e0) at
 postgis_topology.c:4426
 #7  0x000055e7c022e496 in ?? ()
 #8  0x000055e7c0230e6d in ExecProject ()
 #9  0x000055e7c0243568 in ExecResult ()
 #10 0x000055e7c0229d18 in ExecProcNode ()
 #11 0x000055e7c0226f5e in standard_ExecutorRun ()
 #12 0x000055e7c0321247 in ?? ()
 #13 0x000055e7c0322bc0 in PortalRunFetch ()
 #14 0x000055e7c024b6bd in ?? ()
 #15 0x00007efe3b597b6b in ?? () from
 /usr/lib/postgresql/9.4/lib/plpgsql.so
 #16 0x00007efe3b5943f3 in ?? () from
 /usr/lib/postgresql/9.4/lib/plpgsql.so
 #17 0x00007efe3b597bf1 in ?? () from
 /usr/lib/postgresql/9.4/lib/plpgsql.so
 #18 0x00007efe3b5943f3 in ?? () from
 /usr/lib/postgresql/9.4/lib/plpgsql.so
 #19 0x00007efe3b596aad in ?? () from
 /usr/lib/postgresql/9.4/lib/plpgsql.so
 #20 0x00007efe3b596cd2 in plpgsql_exec_function () from
 /usr/lib/postgresql/9.4/lib/plpgsql.so
 #21 0x00007efe3b58bd49 in plpgsql_call_handler () from
 /usr/lib/postgresql/9.4/lib/plpgsql.so
 #22 0x000055e7c022ae83 in ?? ()
 #23 0x00007efe3b590cb4 in ?? () from
 /usr/lib/postgresql/9.4/lib/plpgsql.so
 #24 0x00007efe3b5922c9 in ?? () from
 /usr/lib/postgresql/9.4/lib/plpgsql.so
 #25 0x00007efe3b594731 in ?? () from
 /usr/lib/postgresql/9.4/lib/plpgsql.so
 #26 0x00007efe3b596aad in ?? () from
 /usr/lib/postgresql/9.4/lib/plpgsql.so
 #27 0x00007efe3b596cd2 in plpgsql_exec_function () from
 /usr/lib/postgresql/9.4/lib/plpgsql.so
 #28 0x00007efe3b58bd49 in plpgsql_call_handler () from
 /usr/lib/postgresql/9.4/lib/plpgsql.so
 #29 0x000055e7c022ae83 in ?? ()
 #30 0x000055e7c0230e6d in ExecProject ()
 #31 0x000055e7c0231281 in ExecScan ()
 #32 0x000055e7c0229cc8 in ExecProcNode ()
 #33 0x000055e7c0231228 in ExecScan ()
 #34 0x000055e7c0229c78 in ExecProcNode ()
 #35 0x000055e7c02409b9 in ExecModifyTable ()
 #36 0x000055e7c0229d08 in ExecProcNode ()
 #37 0x000055e7c0226f5e in standard_ExecutorRun ()
 #38 0x000055e7c03218c8 in ?? ()
 #39 0x000055e7c0321b00 in ?? ()
 #40 0x000055e7c0322734 in PortalRun ()
 #41 0x000055e7c031f4e3 in PostgresMain ()
 #42 0x000055e7c00e8773 in ?? ()
 #43 0x000055e7c02c950a in PostmasterMain ()
 #44 0x000055e7c00e990c in main ()
 }}}

 The issue is introduced in r14226  (found using git bisect), which relates
 to ticket #3321.

 Last working version in the 2.2 branch is: PostgreSQL 9.4.5 on x86_64
 -unknown-linux-gnu, compiled by gcc (Debian 5.2.1-23) 5.2.1 20151028,
 64-bit "POSTGIS="2.2.1dev r14218" GEOS="3.5.0-CAPI-1.9.0 r4084" PROJ="Rel.
 4.9.2, 08 September 2015" GDAL="GDAL 2.0.1, released 2015/09/15"
 LIBXML="2.9.3" LIBJSON="0.11.99" TOPOLOGY RASTER

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/3416>
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