Hello Paul, I have identified the cause of the problem and prepared a fix. My tests show that it solves the issue for Trusty and Wily (while Xenial does not require a fix since it's ifupdown has been synced with Debian to a version containing a fix already).
Could you please revert your wpasupplicant to the original state (without your patches) and upgrade your ifupdown from the one available in my ppa? sudo add-apt-repository ppa:dgadomski/lp1545302 sudo apt-get update sudo apt-get install ifupdown In my understanding this should solve your problem. Please leave your feedback and so we will be able to proceed with an official release. Thank you. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to wpa in Ubuntu. https://bugs.launchpad.net/bugs/1545302 Title: wpa-roam broken by fix for ifupdown #1337873 Status in wpa package in Ubuntu: Confirmed Bug description: The following versions of ifupdown introduced a recursion check using "IFUPDOWN_<interface>" environment variables along with a new locking mechanism for ifup (see #1337873): 0.7.47.2ubuntu4.2 (in Trusty) 0.7.54ubuntu1.1 (in Wily) 0.7.54ubuntu2 (in Xenial) This recursion check breaks the wpa-roam feature of wpasupplicant, preventing it from loading the logical interface specified by id_str after associating with an AP. Specifically, after upgrading to one of the above ifupdown versions, the '/sbin/ifup -v --force "$WPA_IFACE=$WPA_LOGICAL_IFACE"' command run by wpa_action in functions.sh fails with an "ifup: recursion detected for parent interface wlan0 in post-up phase" error. To fix the issue, functions.sh needs to run `unset "IFDOWN_$WPA_IFACE"` before calling /sbin/ifup to prevent ifup from detecting the recursion. The attached patch implements this change. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/wpa/+bug/1545302/+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
