#968: v.net.salesman problem with memory allocation
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Reporter: marisn | Owner: grass-dev@lists.osgeo.org
Type: defect | Status: new
Priority: major | Milestone: 6.4.0
Component: Vector | Version: unspecified
Keywords: v.net | Platform: Linux
Cpu: Unspecified |
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v.net.salesman does something wrong during memory allocation. Normaly it
results into assertion in malloc call.
{{{
v.net.salesman: malloc.c:4633: _int_malloc: Assertion
`victim->fd_nextsize->bk_nextsize == victim' failed.
}}}
Valgrind reports invalid write (will attach full valgrind output as an
attachment).
{{{
Number of cities: [6]
==6589== Invalid write of size 8
==6589== at 0x401FAF: main (main.c:209)
==6589== Address 0xd18cbc8 is 0 bytes after a block of size 40 alloc'd
==6589== at 0x4C25EE5: malloc (in /usr/lib64/valgrind/
vgpreload_memcheck-amd64-linux.so)
==6589== by 0x529118F: G__malloc (alloc.c:41)
==6589== by 0x401F64: main (main.c:207)
}}}
GRASS 6.4 r41215 on ~AMD64 Gentoo.
6.5 is also affected.
I'm unable to reproduce with Spearfish. Will attach sample dataset.