[Bug 1899195] Re: /usr/share/apport/apport:AttributeError:/usr/share/apport/apport at 451:parse_arguments:print_usage:_print_message

[Matthieu Clemenceau]

** Description changed:

  The Ubuntu Error Tracker has been receiving reports about a problem
  regarding apport.  This problem was most recently seen with package
  version 2.20.11-0ubuntu27.10, the problem page at
  https://errors.ubuntu.com/problem/290470c9cf5f278596966c386aac31e70a49988e
  contains more details, including versions of packages affected,
  stacktrace or traceback, and individual crash reports.
  
  Traceback (most recent call last):
-   File "/usr/share/apport/apport", line 451, in <module>
-     options = parse_arguments()
-   File "/usr/share/apport/apport", line 396, in parse_arguments
-     parser.print_usage()
-   File "/usr/lib/python3.6/argparse.py", line 2370, in print_usage
-     self._print_message(self.format_usage(), file)
-   File "/usr/lib/python3.6/argparse.py", line 2381, in _print_message
-     file.write(message)
+   File "/usr/share/apport/apport", line 451, in <module>
+     options = parse_arguments()
+   File "/usr/share/apport/apport", line 396, in parse_arguments
+     parser.print_usage()
+   File "/usr/lib/python3.6/argparse.py", line 2370, in print_usage
+     self._print_message(self.format_usage(), file)
+   File "/usr/lib/python3.6/argparse.py", line 2381, in _print_message
+     file.write(message)
  AttributeError: 'NoneType' object has no attribute 'write'
+ 
+ After working on https://bugs.launchpad.net/apport/+bug/1732962, the error tracker started throwing the error above.
+ it appears that print_usage is called and throwing an error because in this context (called with core_pattern) apport doesn't have an stdout or stderr. after looking at traces it seems the kernel is adding 'deleted' to the name of the process which cause argument parsing to fail.
+ 
+ The fix below from bdmurray seems to fix it.
+ https://paste.ubuntu.com/p/pVKNP9kWP4/
+ 
+ There is report of this issue in Focal, Bionic and xenial

** Changed in: apport (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1899195

Title:
  /usr/share/apport/apport:AttributeError:/usr/share/apport/apport at 451:parse_arguments:print_usage:_print_message

Status in apport package in Ubuntu:
  Confirmed

Bug description:
  The Ubuntu Error Tracker has been receiving reports about a problem
  regarding apport.  This problem was most recently seen with package
  version 2.20.11-0ubuntu27.10, the problem page at
  https://errors.ubuntu.com/problem/290470c9cf5f278596966c386aac31e70a49988e
  contains more details, including versions of packages affected,
  stacktrace or traceback, and individual crash reports.

  Traceback (most recent call last):
    File "/usr/share/apport/apport", line 451, in <module>
      options = parse_arguments()
    File "/usr/share/apport/apport", line 396, in parse_arguments
      parser.print_usage()
    File "/usr/lib/python3.6/argparse.py", line 2370, in print_usage
      self._print_message(self.format_usage(), file)
    File "/usr/lib/python3.6/argparse.py", line 2381, in _print_message
      file.write(message)
  AttributeError: 'NoneType' object has no attribute 'write'

  After working on https://bugs.launchpad.net/apport/+bug/1732962, the error tracker started throwing the error above.
  it appears that print_usage is called and throwing an error because in this context (called with core_pattern) apport doesn't have an stdout or stderr. after looking at traces it seems the kernel is adding 'deleted' to the name of the process which cause argument parsing to fail.

  The fix below from bdmurray seems to fix it.
  https://paste.ubuntu.com/p/pVKNP9kWP4/

  There is report of this issue in Focal, Bionic and xenial

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