I did the builder again......

real 0m41.667s
user 0m0.690s
sys 0m3.100s
set_blocksize: b_count 1, dev ide0(3,4), block 1!
EXT2-fs error (device ide0(3,4)): ext2_check_descriptors: Block bitmap for group
64 not in group (block 3)!
EXT2-fs: group descriptors corrupted !
mount: wrong fs type, bad option, bad superblock on /dev/hda4,
or too many mounted file systems
hdstress.cpp 189 ( 18): Poll result=0 on fd=5
hdstress.cpp 189 ( 18): Poll result=0 on fd=5
Stressing /dev/hda: Spinning down.
hdstress.cpp 189 ( 18): Poll result=0 on fd=5
Stressing /dev/hda: Spinning up.
hdstress.cpp 189 ( 18): Poll result=0 on fd=5
hdstress.cpp 189 ( 18): Poll result=0 on fd=5
Speed checking /dev/hda3
hdstress.cpp 189 ( 18): Poll result=0 on fd=5
Read/write of 8Mb took 7.12 seconds
hdstress.cpp 189 ( 18): Poll result=0 on fd=5
Stressing /dev/hda: Spinning down.
....
any ideas ???