unable to report an 18.04 crash from a 19.04 system

[Brian Murray]

I had a distribution upgrade crash when I was trying to upgrade from 18.04 to 19.10 and a .crash was generated. I didn't want to report it from the system which crashed so I ran apport (to do the data collection) and saved the information in the report. I then copied it over to another system which is running Ubuntu 19.04 and I could not report the crash as I received the following crash.

 $ ubuntu-bug tmp/_usr_bin_do-release-upgrade.0.crash
Traceback (most recent call last):
  File "/usr/share/apport/apport-gtk", line 597, in <module>
    app.run_argv()
  File "/usr/lib/python3/dist-packages/apport/ui.py", line 704, in run_argv
    self.run_crash(self.options.crash_file, False)
  File "/usr/lib/python3/dist-packages/apport/ui.py", line 291, in run_crash
    if not self.report and not self.load_report(report_file):
  File "/usr/lib/python3/dist-packages/apport/ui.py", line 1375, in load_report
    self.report.load(f, binary='compressed')
  File "/usr/lib/python3/dist-packages/problem_report.py", line 144, in load
    block = base64.b64decode(line)
  File "/usr/lib/python3.7/base64.py", line 87, in b64decode
    return binascii.a2b_base64(s)
binascii.Error: Incorrect padding

I've attached the problematic crash file, although I don't really think it is the crash file that is the issue.

[Brian Murray (brian-murray)]

I was able to workaround the issue by modifying problem_report.py:

--- problem_report.py 2018-09-17 01:06:20.394711000 -0700
+++ /usr/lib/python3/dist-packages/problem_report.py 2019-06-21 11:40:49.235500124 -0700
@@ -140,7 +140,7 @@ class ProblemReport(UserDict):
                     continue
                 assert (key is not None and value is not None)
                 if b64_block:
- block = base64.b64decode(line)
+ block = base64.b64decode(line + b"=======")
                     if bd:
                         value += bd.decompress(block)
                     else: