When I read large files using ntfs-3g 1.1120 the read is truncated. The
problem does not occur with shorter files.
Here are the file and read sizes for some cases:
60,011,642,880 File size
4,177,068,032 Bytes read
190,457,692,160 File size
1,479,131,136 Bytes read
6,246,400 File size == Bytes read
639,733,760 File size == Bytes read
2,836,605,654 File size == Bytes read
I am reading the files under FreeBSD 8.0-CURRENT using dd with bs=1M.
Here is the corresponding debug output.
Version 1.1120
Mounted /dev/da0s1 (Read-Write, label "Backup", NTFS 3.1)
Cmdline options: debug
Mount options: silent,allow_other,nonempty,relatime,fsname=/dev/da0s1
unique: 0, opcode: INIT (26), nodeid: 0, insize: 56
INIT: 7.8
flags=0x00000000
max_readahead=0x00000000
INIT: 7.8
flags=0x00000000
max_readahead=0x00000000
max_write=0x00020000
unique: 0, error: 0 (Unknown error: 0), outsize: 40
[...]
LOOKUP /spiti-ad2c.dump
NODEID: 2
unique: 0, error: 0 (Unknown error: 0), outsize: 136
unique: 0, opcode: OPEN (14), nodeid: 2, insize: 48
unique: 0, error: 0 (Unknown error: 0), outsize: 32
OPEN[0] flags: 0x0 /spiti-ad2c.dump
unique: 0, opcode: READ (15), nodeid: 2, insize: 64
READ[0] 65536 bytes from 0
READ[0] 65536 bytes
unique: 0, error: 0 (Unknown error: 0), outsize: 65552
unique: 0, opcode: READ (15), nodeid: 2, insize: 64
READ[0] 65536 bytes from 65536
READ[0] 65536 bytes
unique: 0, error: 0 (Unknown error: 0), outsize: 65552
[...]
READ[0] 65536 bytes from 1478950912
READ[0] 65536 bytes
unique: 0, error: 0 (Unknown error: 0), outsize: 65552
unique: 0, opcode: READ (15), nodeid: 2, insize: 64
READ[0] 65536 bytes from 1479016448
READ[0] 65536 bytes
unique: 0, error: 0 (Unknown error: 0), outsize: 65552
unique: 0, opcode: READ (15), nodeid: 2, insize: 64
READ[0] 49152 bytes from 1479081984
READ[0] 49152 bytes
unique: 0, error: 0 (Unknown error: 0), outsize: 49168
unique: 0, opcode: RELEASE (18), nodeid: 2, insize: 64
RELEASE+FLUSH[0] flags: 0x0
unique: 0, error: 0 (Unknown error: 0), outsize: 16
Diomidis Spinellis - http://www.spinellis.gr
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