Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: gdm (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1053217
Title:
gdm leaking filehandles, causing "too many open files"
Status in “gdm” package in Ubuntu:
Confirmed
Bug description:
At a client's site (a large mining company here in Queensland) we have
a Ubuntu 10.04 virtual machine running MacroView SCADA in a dr:bd high
availability cluster. Workstations connect to the server via XDMCP
for control of the local plant.
In the past they ran two discrete Ubuntu servers, which used to run
reliably for months at a time. Since the switch to the high
availability cluster, they now find gdm will refuse to accept new
logins after about 6 weeks of operation until the gdm service is
restarted. The restart of gdm has the effect of booting off everyone
currently logged in -- so for a few seconds, everyone loses control of
the processing plant while people re-connect, every 6 weeks.
The logs show the following:
Sep 20 08:23:38 cgmv1 gdm-binary[31050]: CRITICAL: could not add display to
access file: Too many open files
Sep 20 08:23:38 cgmv1 gdm-binary[31050]: WARNING: Unable to set up access
control for display 1691
Sep 20 08:23:38 cgmv1 gdm-binary[31050]: WARNING: GdmDisplay: display lasted
0.010690 seconds
Doing a search, it would appear this is a file-handle leaking bug
reported to Red Hat back in February 2010:
https://bugzilla.redhat.com/show_bug.cgi?id=562143
Comment #2 of that bug has a patch that allegedly fixes the problem.
I have hand-applied the patch against the latest stable source package
of gdm (2.30.2.is.2.30.0), which I have attached here and am in the
process of testing.
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