Dear all,<br>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):<br>
<br><div style="margin-left: 40px;">Number of centres: 1 (nlayer 2)<br>Calculating costs from centre 1...<br> 100%<br>Generating isolines...<br>*** glibc detected *** v.net.iso: realloc(): invalid next size: 0x085ecfd8 ***<br>
======= Backtrace: =========<br>/lib/tls/i686/cmov/libc.so.6(+0x6b591)[0x3ea591]<br>/lib/tls/i686/cmov/libc.so.6(+0x70cbd)[0x3efcbd]<br>/lib/tls/i686/cmov/libc.so.6(realloc+0xdd)[0x3eff9d]<br>/usr/local/grass-6.5.svn/lib/libgrass_gis.so(G__realloc+0x35)[0x11eb55]<br>
v.net.iso(main+0x15b9)[0x804a889]<br>/lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xe6)[0x395bd6]<br>v.net.iso[0x8049231]<br>======= Memory map: ========<br>00110000-0015d000 r-xp 00000000 08:01 137602 /usr/local/grass-6.5.svn/lib/<a href="http://libgrass_gis.6.5.svn.so" target="_blank">libgrass_gis.6.5.svn.so</a><br>
0015d000-0015e000 r--p 0004c000 08:01 137602 /usr/local/grass-6.5.svn/lib/<a href="http://libgrass_gis.6.5.svn.so" target="_blank">libgrass_gis.6.5.svn.so</a><br></div><br>and so on for some tens of lines.<br>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.<br>
<br>What am I wronging? Any ideas?<br><br>Many thanks, Annalisa<br>