[Bug-ddrescue] ddrescue strange(?) behavour

[sgd]

Hi, 
Working on my phd, because of lack of space, stupidly was not making regular
backups.
hdd dies: system was working over night, the next day won't write, says
"read-only file system".
did reboot, won't see the partitions of the disk anymore (The disk is
present on /dev/)

tried tu rescue with ddrescue (1.15)...

1st Run:
/usr/local/bin/ddrescue -n /dev/sdb /mnt/tmp/temp/imagefile
/mnt/tmp/temp/image.logfile 

Press Ctrl-C to interrupt
rescued:         0 B,  errsize:       0 B,  current rate:        0 B/s
   ipos:         0 B,   errors:       0,    average rate:        0 B/s
   opos:         0 B,     time from last successful read:       1 s
Finished                   

-----------------------
Second Run:
/usr/local/bin/ddrescue -d -r3 /dev/sdb /mnt/tmp/temp/imagefile
/mnt/tmp/temp/image.logfile 


Press Ctrl-C to interrupt
rescued:         0 B,  errsize:       0 B,  current rate:        0 B/s
   ipos:         0 B,   errors:       0,    average rate:        0 B/s
   opos:         0 B,     time from last successful read:       1 s
Finished                   

------------------------
Fourth run:

/usr/local/bin/ddrescue -i1 -n /dev/sdb /mnt/tmp/temp/imagefile
/mnt/tmp/temp/image.logfile 


Press Ctrl-C to interrupt
Initial status (read from logfile)
rescued:         0 B,  errsize:   9223 PB,  errors:       1
Current status
rescued:         0 B,  errsize:   9223 PB,  current rate:        0 B/s
   ipos:         0 B,   errors:       1,    average rate:        0 B/s
   opos:         0 B,     time from last successful read:       0 s
Finished

#Petabytes!!!??

-------------------------

Fifth run:

/usr/local/bin/ddrescue -i1 -d -r3  /dev/sdb /mnt/tmp/temp/imagefile
/mnt/tmp/temp/image.logfile 


Press Ctrl-C to interrupt
Initial status (read from logfile)
rescued:         0 B,  errsize:   9223 PB,  errors:       1
Current status
rescued:         0 B,  errsize:   9223 PB,  current rate:        0 B/s
   ipos:     1152 PB,   errors:       1,    average rate:        0 B/s
   opos:     1152 PB,     time from last successful read:      16 s
^Clitting failed blocks...
Interrupted by user

--------------------------------------------

Sixth run: 

/usr/local/bin/ddrescue -i1 -s146815733760 -d -r3  /dev/sdb
/mnt/tmp/temp/imagefile /mnt/tmp/temp/image.logfile 


Press Ctrl-C to interrupt
Initial status (read from logfile)
rescued:         0 B,  errsize:    146 GB,  errors:       1
Current status
rescued:         0 B,  errsize:    146 GB,  current rate:        0 B/s
   ipos:    98768 MB,   errors:       1,    average rate:        0 B/s
   opos:    98768 MB,     time from last successful read:      21 s
Splitting failed blocks...
Interrupted by user.

#ipos and opos keeps cycling from several MB to thousand of MB...


The disk:  (SAS) SCSI SEAGATE, Model: ST3146854SS, 136.7 GB (146,815,733,760
bytes). 

What I am doing wrong? what could be done? please help!!!!

Guillermo.
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