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---Problem Description---
apport fails to collect nvram specific information
 
---uname output---
3.16.0-10-generic
 
Machine Type = POWER8 
  
---Steps to Reproduce---
 
1) Install Ubuntu 14.10 in Power non-virtualized environment.
2) Install apport package
3) Run following command to verify if apport collects power specific information.

   apport-cli -f -p linux-generic --save=/home/sachin/linux.apport

The command fails with following error :

root@lep8d:/home/sachin# apport-cli -f -p linux-generic
--save=/home/sachin/linux.apport

*** Collecting problem information

The collected information can be sent to the developers to improve the
application. This might take a few minutes.
.......tar: Removing leading `/' from member names
....ERROR: hook /usr/share/apport/general-hooks/powerpc.py crashed:
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/apport/report.py", line 197, in _run_hook
    symb['add_info'](report, ui)
  File "/usr/share/apport/general-hooks/powerpc.py", line 72, in add_info
    'nvram': 'cat /dev/nvram',
  File "/usr/lib/python3/dist-packages/apport/hookutils.py", line 469, in attach_root_command_outputs
    buf = f.read().strip()
  File "/usr/lib/python3.4/codecs.py", line 313, in decode
    (result, consumed) = self._buffer_decode(data, self.errors, final)
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xb5 in position 1: invalid start byte
...
root@lep8d:/home/sachin# 
 
Userspace tool common name: apport 
 
Following version of apport is installed.

root@lep8d:/home/sachin# dpkg --list | grep apport
ii  apport                                                 2.14.7-0ubuntu1                            all          automatically generate crash reports for debugging
ii  apport-symptoms                                        0.20                                       all          symptom scripts for apport
ii  python-apport                                          2.14.7-0ubuntu1                            all          Python library for Apport crash report handling
ii  python3-apport                                         2.14.7-0ubuntu1                            all          Python 3 library for Apport crash report handling
root@lep8d:/home/sachin#

Looking at the code we are doing a cat /dev/nvram to the apport output file which doesn't sounds right to me. I would think using the function add_tar() creating a tar file and copying the content as a ascii file at end of apport output file more appropriate.
One dummy question remaining, how getting the tar file from the ascii output file if we need to ? ( that's also true to validate the content of the DeviceTree tar file).

Would suggest following patch:
--- powerpc.py	2014-09-10 10:28:18.824002770 -0400
+++ powerpc.py.old	2014-09-04 06:33:16.000000000 -0400
@@ -69,8 +69,8 @@
                 'cpu_runmode': 'ppc64_cpu --run-mode',
                 'cpu_freq': 'ppc64_cpu --frequency',
                 'cpu_dscr': 'ppc64_cpu --dscr',
+                'nvram': 'cat /dev/nvram',
             })
-            add_tar(report, '/dev/nvram', 'nvram.tar')
         attach_file_if_exists(report, '/var/log/platform')
 
     if ispSeries and not isPowerKVM:

thanks
 diff -urN powerpc.py.old powerpc.py 
--- powerpc.py.old	2014-09-04 06:33:16.000000000 -0400
+++ powerpc.py	2014-09-10 10:28:18.824002770 -0400
@@ -69,8 +69,8 @@
                 'cpu_runmode': 'ppc64_cpu --run-mode',
                 'cpu_freq': 'ppc64_cpu --frequency',
                 'cpu_dscr': 'ppc64_cpu --dscr',
-                'nvram': 'cat /dev/nvram',
             })
+            add_tar(report, '/dev/nvram', 'nvram.tar')
         attach_file_if_exists(report, '/var/log/platform')
 
     if ispSeries and not isPowerKVM:

Initial Launchpad bug id #1336462 implemented feature support

** Affects: apport (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: architecture-ppc64le bugnameltc-115470 severity-high targetmilestone-inin1410
-- 
apport fails to collect nvram specific information
https://bugs.launchpad.net/bugs/1370259
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