gdaladdo & tiffs - crash with LZW images and average resampling

[kyngchaos@…]

When adding overviews to an LZW compressed TIFF, and using the average resampling, I get bus errors 
at higher overview levels.  Happens with both color and grey images.  No crashes with default nearest 
resampling.  GDAL 1.3.2, libtiff 3.8.2 and latest CVS.

This is what I get in the Mac OS X crash log trace:

Command: gdaladdo
Path:    /usr/local/gislibs/bin/gdaladdo
Parent:  bash [12048]

Version: ??? (???)

PID:    24131
Thread: 0

Exception:  EXC_BAD_ACCESS (0x0001)
Codes:      KERN_PROTECTION_FAILURE (0x0002) at 0x00000810

Thread 0 Crashed:
0   <<00000000>> 	0xffff0680 __bzero + 128 (cpu_capabilities.h:184)
1   libtiff.3.dylib 	0x007867de _TIFFmemset + 31
2   libtiff.3.dylib 	0x00776b55 LZWPreDecode + 163
3   libtiff.3.dylib 	0x00784adf TIFFReadEncodedTile + 96
4   libgdal.1.dylib 	0x010711d6 GTiffRasterBand::IReadBlock(int, int, void*) + 516
5   libgdal.1.dylib 	0x01127aa9 GDALRasterBand::GetLockedBlockRef(int, int, int) + 177
6   libgdal.1.dylib 	0x0112bfc1 GDALRasterBand::IRasterIO(GDALRWFlag, int, int, int, int, void*, int, 
int, GDALDataType, int, int) + 1051
7   libgdal.1.dylib 	0x0112a015 GDALRegenerateOverviews + 1143
8   libgdal.1.dylib 	0x01129e1b GDALRegenerateOverviews + 637
9   libgdal.1.dylib 	0x01073ef6 GTiffDataset::IBuildOverviews(char const*, int, int*, int, int*, int (*)
(double, char const*, void*), void*) + 1876
10  libgdal.1.dylib 	0x0111cf7c GDALDataset::BuildOverviews(char const*, int, int*, int, int*, int (*)
(double, char const*, void*), void*) + 96
11  gdaladdo        	0x00002c7e main + 216
12  gdaladdo        	0x000024d2 _start + 228 (crt.c:272)
13  gdaladdo        	0x000023ed start + 41