[Bug-ddrescue] bad values on status screen

[Wojciech Chojnowski]

Hi.

My cmd is:
ddrescue -M -R -b 4096 -d --input-position=655360000 /dev/sdc sdb.img sdb.log

I have bad value in "non-scraped" field (minus):

     ipos:   30196 MB, non-trimmed:    5024 MB,  current rate:    8192 B/s
     opos:   30196 MB, non-scraped: -921030 kB,  average rate:   12082 B/s
non-tried:        0 B,  bad-sector:   73789 kB,    error rate:    1365 B/s
  rescued:  495274 MB,   bad areas:    12871,        run time: 21h 27m  3s
pct rescued:   99.16%, read errors:    18015,  remaining time:  1d 14h 55m
                              time since last successful read:          0s

I checked log file via ddrescuelog -t sdb.log and  I received:

   current pos:   30198 MB,  current status: scraping
mapfile extent:  500107 MB,  in  49237 area(s)

     non-tried:        0 B,  in      0 area(s)  (  0%)
       rescued:  482861 MB,  in  13765 area(s)  ( 96.55%)
   non-trimmed:    5044 MB,  in  11749 area(s)  (  1.00%)
   non-scraped:   12127 MB,  in  10854 area(s)  (  2.42%)
    bad-sector:   73723 kB,  in  12869 area(s)  (  0.01%)

I both statuses are different "rescued" fields.

I received many times problem with rescued value on many computers and linuxes.
After many hours of working ddrescue log file is decrease "rescued"  field 
between execution.
I must copy log file in 5 minutes period and change log file to some previous 
after I find problem.

Best regards
Wojtek

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