DEBUG  BBCInit: ./testfile type 3
INFO   new_file ./testfile
INFO   ./testfile: nblks 4096
WARN   blk 4079 marked bad by MFG
DEBUG  read_fat_blk 4095: seqno 1 link 0
DEBUG  read_fat_blk 4094: seqno 1 link 0
DEBUG  read_fat_blk 4093: seqno 2 link 0
DEBUG  read_fat_blk 4092: seqno 3 link 0
DEBUG  read_fat_blk 4091: seqno 1 link 0
DEBUG  read_fat_blk 4090: seqno 1 link 0
DEBUG  read_fat_blk 4089: seqno 1 link 0
DEBUG  read_fat_blk 4088: seqno 1 link 0
DEBUG  read_fat_blk 4087: seqno 1 link 0
DEBUG  read_fat_blk 4086: seqno 1 link 0
DEBUG  read_fat_blk 4085: seqno 1 link 0
DEBUG  read_fat_blk 4084: seqno 1 link 0
DEBUG  read_fat_blk 4083: seqno 1 link 0
DEBUG  read_fat_blk 4082: seqno 1 link 0
DEBUG  read_fat_blk 4081: seqno 1 link 0
DEBUG  read_fat_blk 4080: seqno 1 link 0
DEBUG  read_fat: best seq = 3
DEBUG  __osBbFCheck
DEBUG  __osBbFCheck blks 4096
DEBUG  __osBbFCheck done: 1 files
DEBUG  fdelete temp.tmp
DEBUG  fdelete returns -14
DEBUG  __BBC_ObjectSize crl.sys
DEBUG  __bbc_fopen crl.sys (crl) at 0
DEBUG  fstat returns size 16384
DEBUG  __BBC_GetObject crl.sys
DEBUG  __bbc_fopen crl.sys (crl) at 0
DEBUG  fstat returns size 16384
ERROR  Blk 4079 marked bad
DEBUG  fread returns -15