On Mon, 10 Sep 2007 11:45:10 +0200 (CEST) Simon Derr <[EMAIL PROTECTED]> wrote:
> On Sat, 8 Sep 2007, Nicolas Capit wrote: > > > Hello, > > > > This is my situation: > > - I mounted the pseudo cpuset filesystem into /dev/cpuset > > - I created a cpuset named oar with my 2 cpus > > > > cat /dev/cpuset/oar/cpus > > 0-1 > > > > - Then I hibernate my computer with 'echo -n "disk" >/sys/power/state' > > - After reboot: > > > > cat /dev/cpuset/oar/cpus > > 0 > > > > Why did I lost a cpu? > > Is this a normal behavior??? > > Hi Nicolas, > > I believe this is related to the fact that hibernation uses the hotplug > subsystem to disable all CPUs except the boot CPU. > > Thus guarantee_online_cpus() is called on each cpuset and removes all > CPUs, except CPU 0, from all cpusets. > > I'm not quite sure about if/how this should be fixed in the kernel, > though. Looks like a very simple user-land workaround would be enough. > > Simon. Ok, it is not a big deal for me (you don't hibernate computers in a cluster...) but I wanted to bring you this issue in case of a similar behavior in another case... Thanks for your response. Nicolas Capit. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
