Confirmed fixed in precise-proposed, trusty-proposed and utopic-
proposed.
** Tags removed: verification-needed
** Tags added: ed verification-done-trusty
** Tags removed: ed raring
** Changed in: lightdm (Ubuntu Precise)
Status: Triaged => Fix Committed
** Tags added: verification-done-precise
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https://bugs.launchpad.net/bugs/1190344
Title:
Daemon end of session/greeter pipes not closed
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:
Fix Committed
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 and greeters. This means each session/greeter 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.
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