Thanks for this! I already fixed that a while ago in
http://bazaar.launchpad.net/~apport-hackers/apport/trunk/revision/2516 ,
so it is fixed Apport 2.6.2 and thus in Raring.
** Changed in: apport (Ubuntu)
Status: Confirmed => Fix Released
--
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to apport in Ubuntu.
https://bugs.launchpad.net/bugs/1055110
Title:
apport-retrace crashed with AttributeError in join(): 'NoneType'
object has no attribute 'endswith'
Status in “apport” package in Ubuntu:
Fix Released
Bug description:
I'm on Ubuntu 12.10 Beta 1 (upgraded from 12.04) using apport-retrace
2.5.2-0ubuntu4. I initially tried to run apport-retrace to regenerate
a stack trace from a .crash file in /var/crash (sending it to stdout),
using the following command:
apport-retrace --stdout /var/crash/_usr_bin_nautilus.1000.crash
Instead of producing the expected result (the trace printed on
stdout), it crashed ungracefully with the following traceback:
Traceback (most recent call last):
File "/usr/bin/apport-retrace", line 464, in <module>
apt_root = os.path.join(options.cache, report['DistroRelease'], 'apt')
File "/usr/lib/python2.7/posixpath.py", line 77, in join
elif path == '' or path.endswith('/'):
AttributeError: 'NoneType' object has no attribute 'endswith'
I tried running apport-retrace with a few other options (e.g., -o, to
output to a file; I am *very much* a newbie here, so I was
experimenting a bit), and they all seemed to result in the same crash
*unless* I also specified that apport-retrace should use a sandbox
(using the -S or --sandbox option). Having discovered that, I took a
look at the code and noticed that options.cache only gets assigned --
at least if you don't manually assign it yourself from the command
line -- if you are using a sandbox; if you do not specify the sandbox
option, options.cache is never assigned and is instead of type 'None',
which results in the above crash when apport-retrace attempts to pass
options.cache as the first argument for os.path.join().
I was able to prevent this behavior with a quick patch that forces
apport-retrace to assign something to options.cache even when the
sandbox option is not specified (and even when you do not manually
assign something from the command line). The patch, which I have
attached, is *utterly* simplistic and, for all I know, might still be
producing unwanted behavior -- I emphasize again that I am a total
newbie to apport-retrace and at this point have virtually no
understanding of its inner workings (plus, I happen to be in a bit of
a hurry at the moment, unfortunately!). All that the patch does is
"plug the hole," so to speak, by assigning something to options.cache
even when the sandbox option is not specified, thereby allowing
apport-retrace to exit with a seemingly-appropriate error message
rather than simply crashing. Probably, it would be better if it did
something a bit more helpful, though. In any case, I'm hoping that it
might be of some small help; the behavior now produced seems at least
marginally better than the total crash. (I'm also hoping that the
crash didn't occur simply because I did something dumb and was
supposed to specify a cache file from the command line in the first
place -- again, I don't know much about apport-retrace at all! -- but,
even so, an error message in that case would be better than a crash.)
ProblemType: Crash
DistroRelease: Ubuntu 12.10
Package: apport-retrace 2.5.2-0ubuntu4
ProcVersionSignature: Ubuntu 3.5.0-15.22-generic 3.5.4
Uname: Linux 3.5.0-15-generic x86_64
ApportLog:
ApportVersion: 2.5.2-0ubuntu4
Architecture: amd64
CrashCounter: 1
Date: Sun Sep 23 11:57:27 2012
ExecutablePath: /usr/bin/apport-retrace
ExecutableTimestamp: 1348122314
InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64
(20120823.1)
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/bin/apport-retrace -o
nautilus_crash_retrace.txt /var/crash/_usr_bin_nautilus.1000.crash
ProcCwd: /home/jrogers
ProcEnviron:
TERM=xterm
SHELL=/bin/bash
PATH=(custom, no user)
LANG=en_US.UTF-8
PythonArgs: ['/usr/bin/apport-retrace', '-o', 'nautilus_crash_retrace.txt',
'/var/crash/_usr_bin_nautilus.1000.crash']
SourcePackage: apport
Title: apport-retrace crashed with AttributeError in join(): 'NoneType'
object has no attribute 'endswith'
UpgradeStatus: Upgraded to quantal on 2012-09-15 (8 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1055110/+subscriptions
--
Mailing list: https://launchpad.net/~desktop-packages
Post to : desktop-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~desktop-packages
More help : https://help.launchpad.net/ListHelp
