It looks like the same bug reappearing https://bugs.launchpad.net/ubuntu/+source/apt-xapian- index/+bug/1530518/comments/2
Running a-x-i directly doesn't trigger this bug, but the combination of nice and ionice makes it show up much more often. (When the index is already up to date) Steps to reproduce: * `sudo update-apt-xapian-index` * Now that the index is updated we trigger the bug by running the following command (which is the same used in the cron job) * `sudo nice -n 19 ionice -c 3 update-apt-xapian-index --quiet` * may need to run 4 times or more The intention of the proposed patch is to work around the problem by keeping a reference to the os.unlink function in the ServerProgress instance. See http://stackoverflow.com/questions/17084260/imported-modules-become-none-when-running-a-function for an explanation of the issue in python. Also see http://pydev.blogspot.ch/2015/01/creating-safe-cyclic-reference.html for a possible implementation using weakrefs. ** Patch added: "keep a reference to os.unlink" https://bugs.launchpad.net/ubuntu/+source/apt-xapian-index/+bug/1652641/+attachment/4861539/+files/apt-xapian-index_0.47ubuntu12.debdiff -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1652641 Title: crash in indexer.py, AttributeError: 'NoneType' object has no attribute 'unlink' To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt-xapian-index/+bug/1652641/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
