I needed to run it with sudo.
Every time I switch to Guest Session, logout, and then switch back to
the first user, I notice two more pipes open.
$ sudo lsof -p 1055 | grep FIFO
lsof: WARNING: can't stat() fuse.gvfsd-fuse file system /run/user/1000/gvfs
Output information may be incomplete.
lightdm 1055 root 4r FIFO 0,8 0t0 12349 pipe
lightdm 1055 root 5w FIFO 0,8 0t0 12349 pipe
lightdm 1055 root 13w FIFO 0,8 0t0 11794 pipe
lightdm 1055 root 14r FIFO 0,8 0t0 11795 pipe
lightdm 1055 root 15w FIFO 0,8 0t0 12546 pipe
lightdm 1055 root 16r FIFO 0,8 0t0 12547 pipe
lightdm 1055 root 18w FIFO 0,8 0t0 1244475 pipe
lightdm 1055 root 19r FIFO 0,8 0t0 1244476 pipe
lightdm 1055 root 20w FIFO 0,8 0t0 1257093 pipe
lightdm 1055 root 21r FIFO 0,8 0t0 1257094 pipe
lightdm 1055 root 22w FIFO 0,8 0t0 1316710 pipe
lightdm 1055 root 23r FIFO 0,8 0t0 1316711 pipe
lightdm 1055 root 24w FIFO 0,8 0t0 1332415 pipe
lightdm 1055 root 25r FIFO 0,8 0t0 1332416 pipe
lightdm 1055 root 26w FIFO 0,8 0t0 1351976 pipe
lightdm 1055 root 27r FIFO 0,8 0t0 1351977 pipe
lightdm 1055 root 28w FIFO 0,8 0t0 1369466 pipe
lightdm 1055 root 29r FIFO 0,8 0t0 1369467 pipe
--
You received this bug notification because you are a member of Ubuntu
Touch seeded 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/~touch-packages
Post to : touch-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~touch-packages
More help : https://help.launchpad.net/ListHelp
