[GRASS-user] Error en r.watershed

I caught this error
Model: PowerMac7,2, BootROM 5.1.4f0, 2 processors, PowerPC 970 (2.2),
1.8 GHz, 1 GB
Graphics: GeForce FX 5200, GeForce FX 5200, AGP, 64 MB
Date/Time: 2007-02-07 12:18:58.566 +0100
OS Version: 10.4.8 (Build 8L127)
Report Version: 4

Command: r.watershed.seg
Path:
/Applications/Grass/GRASS070128.app/Contents/Resources/etc/water/r.watershed.seg
Parent: r.watershed [6371]

Version: GRASS 6.3.0-CVS-07012401 (6.3.0)

PID: 6373
Thread: 0

Exception: EXC_BAD_ACCESS (0x0001)
Codes: KERN_PROTECTION_FAILURE (0x0002) at 0x0000000c

Thread 0 Crashed:
0 libgrass_segment.dylib 0x0000e4a8 segment_pagein + 48
1 libgrass_segment.dylib 0x0000e7e0 segment_put + 56
2 r.watershed.seg 0x0000785c seg_put + 16
3 r.watershed.seg 0x00003ca4 add_pt + 232
4 r.watershed.seg 0x00006430 init_vars + 6148
5 r.watershed.seg 0x00006504 main + 76
6 r.watershed.seg 0x00001e44 _start + 760
7 r.watershed.seg 0x00001b48 start + 48

Thread 0 crashed with PPC Thread State 64:
  srr0: 0x000000000000e4a8 srr1: 0x100000000000f030
     vrsave: 0x0000000000000000
    cr: 0x24002402 xer: 0x0000000000000000 lr:
0x000000000000e488 ctr: 0x000000000000e7a8
    r0: 0x000000000000e7e0 r1: 0x00000000bfffe1c0 r2:
0x0000000000000000 r3: 0x000000000000a180
    r4: 0x0000000000000000 r5: 0x0000000000000000 r6:
0x00000000bfffe258 r7: 0x0000000000000000
    r8: 0x0000000000000000 r9: 0x0000000000000000 r10:
0x0000000000000000 r11: 0x0000000000000000
   r12: 0x000000000000e7a8 r13: 0x0000000000008714 r14:
0x0000000000008708 r15: 0x00000000000086fc
   r16: 0x0000000000010000 r17: 0x0000000000010000 r18:
0x00000000000086d8 r19: 0x0000000000010000
   r20: 0x0000000000010000 r21: 0x00000000000000d5 r22:
0x0000000000010000 r23: 0x0000000000010000
   r24: 0x0000000000010000 r25: 0xffffffffffffffff r26:
0xffffffffffffffff r27: 0x0000000080000000
   r28: 0x0000000000000000 r29: 0x000000000000a180 r30:
0x00000000bfffe31c r31: 0x000000000000e488

Binary Images Description:
    0x1000 - 0x8fff r.watershed.seg
/Applications/Grass/GRASS070128.app/Contents/Resources/etc/water/r.watershed.seg
    0xd000 - 0xefff libgrass_segment.dylib
/Applications/Grass/GRASS070128.app/Contents/Resources/lib/libgrass_segmentdylib
   0x11000 - 0x16fff libgrass_datetime.dylib
/Applications/Grass/GRASS070128.app/Contents/Resources/lib/libgrass_datetime.dylib
   0x43000 - 0x77fff libgrass_gis.dylib
/Applications/Grass/GRASS070128.app/Contents/Resources/lib/libgrass_gis.dylib
0x8fe00000 - 0x8fe51fff dyld 45.3 /usr/lib/dyld
0x90000000 - 0x901bcfff libSystem.B.dylib /usr/lib/libSystem.B.dylib
0x90214000 - 0x90219fff libmathCommon.A.dylib
/usr/lib/system/libmathCommon.A.dylib
0x9110e000 - 0x9111cfff libz.1.dylib /usr/lib/libz.1.dylib
0x94bee000 - 0x94c0efff libmx.A.dylib /usr/lib/libmx.A.dylib

Model: PowerMac7,2, BootROM 5.1.4f0, 2 processors, PowerPC 970 (2.2),
1.8 GHz, 1 GB
Graphics: GeForce FX 5200, GeForce FX 5200, AGP, 64 MB