Hi Ben,
Please can you test whether this is fixed in Linux 3.0 (available in
testing and unstable).
I installed the 3.0.0.1 testing kernel on the squeeze box and reran the
test. The number of directories in /cgroup does not increase even after
opening and closing 50 connections to vsftpd (using nagios' check_ftp
command).
Install command was: apt-get -t testing --no-install-recommends install
linux-image-3.0.0.1-amd64 firmware-linux
xxx:~# uname -a
Linux xxx 3.0.0-1-amd64 #1 SMP Sun Jul 24 02:24:44 UTC 2011 x86_64 GNU/Linux
Would the test need to be done on a system that was entirely upgraded to
testing or even cleanly installed from testing?
I noticed that after upgrading to Linux 3.0 starting any LXC container
fails with this output:
xxx:~# lxc-start -n vm0
lxc-start: No such file or directory - failed to rename cgroup
/cgroup/7587->/cgroup/vm0
lxc-start: failed to spawn 'vm0'
lxc-start: No such file or directory - failed to remove cgroup '/cgroup/vm0'
Is any additional information or testing required?
Dirk
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