Using 1.10.4-0ubuntu2 from trusty-proposed, I don't see any pipes open. $ lsof -p 1055 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME lightdm 1055 root cwd unknown /proc/1055/cwd (readlink: Permission denied) lightdm 1055 root rtd unknown /proc/1055/root (readlink: Permission denied) lightdm 1055 root txt unknown /proc/1055/exe (readlink: Permission denied) lightdm 1055 root NOFD /proc/1055/fd (opendir: Permission denied) $ lsof -p 1055 | grep FIFO | wc -l 0
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to lightdm in Ubuntu. https://bugs.launchpad.net/bugs/1190344 Title: lightdm is leaking FDs -fix Status in Light Display Manager: Fix Released Status in Light Display Manager 1.10 series: Fix Released Status in Light Display Manager 1.12 series: Fix Released Status in Light Display Manager 1.2 series: Fix Released Status in lightdm package in Ubuntu: Fix Released Status in lightdm source package in Precise: Triaged Status in lightdm source package in Trusty: Fix Committed Status in lightdm source package in Utopic: Fix Committed Status in lightdm source package in Vivid: Fix Released Status in Fedora: Unknown Bug description: [Impact] LightDM doesn't close the server side end of the pipes used to communicate with session processes. This means each session that is created leaks two file descriptors eventually leading to the system stopping it from creating new pipes. [Test Case] 1. Start LightDM 2. Check how many pipes are open # lsof -p {lightdm_pid} | grep FIFO | wc -l 3. Create sessions by either cycling between users in Unity Greeter or logging in and out 4. Check how many pipes exist using step 2. Expected result: No more pipes should be open Observed result: Many pipes remain open [Regression Potential] Low. Fix is to close pipes when finished with them. Tested with regression tests. To manage notifications about this bug go to: https://bugs.launchpad.net/lightdm/+bug/1190344/+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
