On Mon, 15 Nov 2010 08:49:40 +0800, Li Zefan <[email protected]> wrote: > Ben Gamari wrote: > > I've been trying to configure cgroups and have encountered some very > > strange behavior. In particular, when I follow the instructions in > > Documentation/cgroups/blkio-controller.txt I quickly reach an error, > > > > $ cd /mnt > > $ sudo mkdir -p cgroups/blkio > > $ # Confirm it's not already mounted: > > $ cat /proc/mounts > > $ sudo mount -t cgroup -o blkio none /mnt/cgroups/blkio > ... > > mount: special device none does not exist > > > > I've done quite a bit of Googling and yet it's very difficult to find > > good information on configuring cgroups. I would use the libcg > > toolset[1] but every attempt to configure it has ended in frustratingly > > vague error messages. > > > > Any ideas? > > > > I suspect you didn't have blkio enabled in your kernel config. > Doh! I could have sworn I had enabled this. Sorry for the noise!
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