Messages in this thread | | | Subject | Re: [PATCH 24/25] r/o bind mounts: track number of mount writers | From | Dave Hansen <> | Date | Tue, 25 Sep 2007 09:10:39 -0700 |
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On Mon, 2007-09-24 at 16:15 -0700, Andrew Morton wrote: > On Mon, 24 Sep 2007 16:05:37 -0700 > Dave Hansen <haveblue@us.ibm.com> wrote: > > > On Mon, 2007-09-24 at 15:25 -0700, Andrew Morton wrote: > > > hm. I saw that warning on my 2-way. It has CONFIG_NR_CPUS=8 so perhaps > > > the kernel has decided that this machine can possibly have eight CPUs. > > > > > > It's an old super-micro board, doesn't have ACPI. > > > > Well, it's looking like we only set cpu_possible_map from data we find > > in the MP table, which makes sense. The only question is how your > > system gets more than ~8 possible cpus. Do you have the .config handy? > > http://userweb.kernel.org/~akpm/config-vmm.txt
I've reproduced this. I'll do more runtime testing with all of the debugging, CONFIG_CPU_HOTPLUG=y, and NR_CPUS to a high value. It should help catch things like this in the future.
-- Dave
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