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Message #102596
[Bug 1495871] Re: unity8 leaks file descriptors
For completeness, here are Jean-Baptiste's findings:
"I reproduce the issue by following the "fd leak" lead with the
following test case:
1. Open 2 apps
2. Switch from the app scope to app1
3. Switch from app1 to the app scope
4. Switch from the app scope to app2
5 lock the screen (optional but it leaks even more fd)
At the same time monitor the number of file descriptors used by unity8:
$ watch -n1 "ls /proc/$(pidof unity8)/fdinfo/| wc -l "
After a while unity8 runs out of fd and the system hangs. Eventually
unity8 will restart a moment later."
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https://bugs.launchpad.net/bugs/1495871
Title:
unity8 leaks file descriptors
Status in unity8 package in Ubuntu:
Confirmed
Bug description:
unity8 leaks file descriptors in various cases, causing the process to
eventually fail (hang and/or restart). These leaks were first
discovered during investigations of https://bugs.launchpad.net
/canonical-devices-system-image/+bug/1491566 , but it's not clear yet
if they are indeed responsible for that particular bug. In any case,
this is a critical problem, and should be addressed independently.
The fds are leaked in various scenarios, including:
* opening/closing apps
* switching between apps
* locking the screen
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References