[Bug 1064357] Re: apport crashed with : struct.error: unpack requires a bytes object of length 4 in problem_report.py, line 75, in write

[Marcus Tomlinson]

This issue has sat incomplete for more than 60 days now. I'm going to
close it as invalid. Please feel free re-open if this is still an issue
for you. Thank you.

** Changed in: apport (Ubuntu)
       Status: Incomplete => Invalid

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Title:
  apport crashed with : struct.error: unpack requires a bytes object of
  length 4 in problem_report.py, line 75, in write

Status in Python:
  Fix Released
Status in apport package in Ubuntu:
  Invalid

Bug description:
  Quantal armhf up to date

  Apport crashed with the error below following an apt-xapian-index
  crash. apport crash file attached.

  Traceback:
   Traceback (most recent call last):
     File "/usr/share/apport/apport-gtk", line 575, in <lambda>
       GLib.idle_add(lambda: self.collect_info(on_finished=self.ui_update_view))
     File "/usr/lib/python3/dist-packages/apport/ui.py", line 983, in collect_info
       icthread.exc_raise()
     File "/usr/lib/python3/dist-packages/apport/REThread.py", line 64, in exc_raise
       raise self._exception[1].with_traceback(self._exception[2])
     File "/usr/lib/python3/dist-packages/apport/REThread.py", line 34, in run
       self._retval = self.__target(*self.__args, **self.__kwargs)
     File "/usr/lib/python3/dist-packages/apport/ui.py", line 61, in thread_collect_info
       report.add_gdb_info()
     File "/usr/lib/python3/dist-packages/apport/report.py", line 652, in add_gdb_info
       self['CoreDump'].write(f)
     File "/usr/lib/python3/dist-packages/problem_report.py", line 75, in write
       block = gz.read(1048576)
     File "/usr/lib/python3.2/gzip.py", line 343, in read
       self._read(readsize)
     File "/usr/lib/python3.2/gzip.py", line 405, in _read
       self._read_eof()
     File "/usr/lib/python3.2/gzip.py", line 437, in _read_eof
       crc32 = read32(self.fileobj)
     File "/usr/lib/python3.2/gzip.py", line 37, in read32
       return struct.unpack("<I", input.read(4))[0]
   struct.error: unpack requires a bytes object of length 4


  It seems that apport showed up and started reporting the bug while the
  crash file (apt-xapian-index in this case) was not completely written
  to disk.

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