[GRASS-user] v.net.iso problem?

[Martin Landa]

Hi,

2010/6/23 Annalisa Minelli <annagrass6 at gmail.com>:
> I'm testing v.net.iso on some river networks to calculate the "distance
> zones" along the river from a date point (cross section), and *sometimes* I
> found this strange error (in more versions of GRASS: I updated software
> yesterday, compiled and tested on 64, 65 and 70.. with the same results):
>
> Number of centres: 1 (nlayer 2)
> Calculating costs from centre 1...
>  100%
> Generating isolines...
> *** glibc detected *** v.net.iso: realloc(): invalid next size: 0x085ecfd8
> ***
> ======= Backtrace: =========
> /lib/tls/i686/cmov/libc.so.6(+0x6b591)[0x3ea591]
> /lib/tls/i686/cmov/libc.so.6(+0x70cbd)[0x3efcbd]
> /lib/tls/i686/cmov/libc.so.6(realloc+0xdd)[0x3eff9d]
> /usr/local/grass-6.5.svn/lib/libgrass_gis.so(G__realloc+0x35)[0x11eb55]
> v.net.iso(main+0x15b9)[0x804a889]
> /lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xe6)[0x395bd6]
> v.net.iso[0x8049231]
> ======= Memory map: ========
> 00110000-0015d000 r-xp 00000000 08:01 137602
> /usr/local/grass-6.5.svn/lib/libgrass_gis.6.5.svn.so
> 0015d000-0015e000 r--p 0004c000 08:01 137602
> /usr/local/grass-6.5.svn/lib/libgrass_gis.6.5.svn.so
>
> and so on for some tens of lines.
> The very strange thing is that in some cases the module produces the right
> output and gives no errors, in other zones I obtain this error evenif the
> input data are prapared in the same way.

try to set debug level to 5 and run command again.

g.gisenv DEGUG=5

Post last few lines from the log.

Martin

-- 
Martin Landa <landa.martin gmail.com> * http://gama.fsv.cvut.cz/~landa