TagFuse/tagtlv/gps_struct: unpack error

[cire831]

TIB5: cire831/mm@2049390
TagFuse: danome/TagNet@d0187a1

Running continuous stream against TIB 5:

Fuse side:

read p/l:17971772/44
*** 33828 sparsefile, cur/max number of blocks: 5/5, max block size: 635536
DEBUG:fuse.log-mixin:<- read '\x00\x00\x00\x00\x01\x00\x00\x00\xa0\xa2\x00\x1a]\x12\x03\x07\x82\x14\x07\xcd\x07\x0f\x00\x01_\x18\x00\x00\x00C\x00\x16\x8czk\x00\x00\x00\x04;\xb0\xb3\x00\x00'
DEBUG:fuse.log-mixin:-> read /1fbcd99fd29f/tag/sd/0/dblk/byte (20L, 17971816L, <fuse.fuse_file_info object at 0x75ddae40>)
read p/l:17971816/20
*** 33829 sparsefile, cur/max number of blocks: 5/5, max block size: 635536
DEBUG:fuse.log-mixin:<- read "'\x00 \x00\x84\x15\x04\x00\x17B\x0e\r\x15\x04\x14\x04\xe2\x07\x83\x05"
DEBUG:fuse.log-mixin:-> read /1fbcd99fd29f/tag/sd/0/dblk/byte (20L, 17971836L, <fuse.fuse_file_info object at 0x75ddaee0>)
DEBUG:fuse.log-mixin:<- read '[Unhandled Exception]'
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/fuse.py", line 495, in _wrapper
    return func(*args, **kwargs) or 0
  File "/usr/local/lib/python2.7/dist-packages/fuse.py", line 583, in read
    offset, fh)
  File "/usr/local/lib/python2.7/dist-packages/fuse.py", line 972, in __call__
    ret = getattr(self, op)(path, *args)
  File "tagfuse/tagfuse.py", line 188, in read
    return (str(handler.read(path_list, size, offset)))
  File "tagfuse/taghandlers.py", line 322, in read
    size, offset)
  File "tagfuse/radiofile.py", line 63, in file_get_bytes
    err, payload = msg_exchange(radio, req_msg)
  File "tagfuse/radioutils.py", line 200, in msg_exchange
    rsp = TagMessage(bytearray(rsp_buf))
  File "/home/pi/tag/Tagnet/tagfuse/../tagnet/tagnet/tagmessages.py", line 88, in __init__
    self.parse(args[0])
  File "/home/pi/tag/Tagnet/tagfuse/../tagnet/tagnet/tagmessages.py", line 175, in parse
    self.name = TagName(v[hdr_size:self.header.name_length+hdr_size])
  File "/home/pi/tag/Tagnet/tagfuse/../tagnet/tagnet/tagnames.py", line 23, in __init__
    super(TagName,self).__init__(*args, **kwargs)
  File "/home/pi/tag/Tagnet/tagfuse/../tagnet/tagnet/tagtlv.py", line 176, in __init__
    self.parse(args[0])
  File "/home/pi/tag/Tagnet/tagfuse/../tagnet/tagnet/tagtlv.py", line 225, in parse
    self.append(TagTlv(fb[x:x+y]))
  File "/home/pi/tag/Tagnet/tagfuse/../tagnet/tagnet/tagtlv.py", line 577, in __init__
    self.mytlv = _Tlv(t)
  File "/home/pi/tag/Tagnet/tagfuse/../tagnet/tagnet/tagtlv.py", line 315, in __init__
    if (self._build_value(t) is not None):
  File "/home/pi/tag/Tagnet/tagfuse/../tagnet/tagnet/tagtlv.py", line 504, in _build_value
    if (t == tlv_types.GPS):       return list(gps_struct.unpack(v))
error: unpack requires a string argument of length 12
DEBUG:fuse.log-mixin:-> flush /1fbcd99fd29f/tag/sd/0/dblk/byte (<fuse.fuse_file_info object at 0x75ddae90>,)
*** sparse IO flush [u'<node_id:1fbcd99fd29f>', u'tag', u'sd', u'0', u'dblk', u'byte']
DEBUG:fuse.log-mixin:<- flush 0
DEBUG:fuse.log-mixin:-> release /1fbcd99fd29f/tag/sd/0/dblk/byte (<fuse.fuse_file_info object at 0x75ddae90>,)
** tag release
DEBUG:fuse.log-mixin:<- release 0

And on the tag side:

--- @17971480 267649 219037306  224    32  GPS_RAW -- MID:   4     (04) <rx> NavTrack
--- @17971704 267650 219038071   45    32  GPS_RAW -- MID:   9     (09) <rx> cpu thruput
--- @17971752 267651 219038125   62    32  GPS_RAW -- MID:  93/18  (5d) <rx> TCXO learning
*** TF.read: unhandled OSError exception <type 'exceptions.OSError'>
Traceback (most recent call last):
  File "/usr/local/bin/tagdump", line 11, in <module>
    load_entry_point('tagdump==0.3.0.dev3', 'console_scripts', 'tagdump')()
  File "/usr/local/lib/python2.7/dist-packages/tagdump-0.3.0.dev3-py2.7.egg/tagdump/__main__.py", line 10, in main
    dump(parseargs())
  File "/usr/local/lib/python2.7/dist-packages/tagdump-0.3.0.dev3-py2.7.egg/tagdump/tagdump.py", line 547, in dump
    rec_offset, hdr, rec_buf = get_record(infile)
  File "/usr/local/lib/python2.7/dist-packages/tagdump-0.3.0.dev3-py2.7.egg/tagdump/tagdump.py", line 413, in get_record
    rec_buf.extend(bytearray(fd.read(dlen)))
  File "/usr/local/lib/python2.7/dist-packages/tagdump-0.3.0.dev3-py2.7.egg/tagdump/tagfile.py", line 57, in read
    new = os.read(self.fileno, cnt - len(buf))
OSError: [Errno 14] Bad address

when I restart with: tagdump --tail -j 17971480 byte

it fires up fine.

P222 (110): tagdump --tail -j 17971480 byte
--- offset  recnum       rt  len  type  name
--- @17971480 267649 219037306  224    32  GPS_RAW -- MID:   4     (04) <rx> NavTrack
--- @17971704 267650 219038071   45    32  GPS_RAW -- MID:   9     (09) <rx> cpu thruput
--- @17971752 267651 219038125   62    32  GPS_RAW -- MID:  93/18  (5d) <rx> TCXO learning
--- @17971816 267652 219038231   39    32  GPS_RAW -- MID:  51/1   (33) <rx> unk_51
--- @17971856 267653 219038265   40    32  GPS_RAW -- MID:  65/192 (41) <rx> gpio
--- @17971896 267654 219102567  127    32  GPS_RAW -- MID:  41     (29) <rx> GeoData   L  (6)
--- @17972024 267655 219102875   40     4  EVENT  GPS_SATS_41 6 0 516 0
--- @17972064 267656 219102880   40     4  EVENT  GPS_TIME 132252692 5386 23000 0
--- @17972104 267657 219102884   40     4  EVENT  GPS_GEO 370762097 3075047160 1997 508238000
--- @17972144 267658 219102888   40     4  EVENT  GPS_AWAKE_S 41 4 0 0
--- @17972184 267659 219103489   77    32  GPS_RAW -- MID:   2     (02) <rx> NavData  (6)
--- @17972264 267660 219103638   40     4  EVENT  GPS_SATS_2 6 4 0 0
--- @17972304 267661 219103643   40     4  EVENT  GPS_XYZ 6 4292267925 4290646060 3824270
--- @17972344 267662 219103647   40     4  EVENT  GPS_AWAKE_S 2 4 0 0
--- @17972384 267663 219103642   45    32  GPS_RAW -- MID:   9     (09) <rx> cpu thruput
--- @17972432 267664 219103695   62    32  GPS_RAW -- MID:  93/18  (5d) <rx> TCXO learning
--- @17972496 267665 219103801   39    32  GPS_RAW -- MID:  51/1   (33) <rx> unk_51
--- @17972536 267666 219103835   40    32  GPS_RAW -- MID:  65/192 (41) <rx> gpio
--- @17972576 267667 219168137  127    32  GPS_RAW -- MID:  41     (29) <rx> GeoData   L  (6)