On Wed, 23 May 2012, Peter Zijlstra wrote: > On Tue, 2012-05-22 at 17:00 +0200, Peter Zijlstra wrote: > > /me goes kick his gray cells some more. > > OK, does the below make your machine happy? If not, please share the > completely topology setup of that thing (lscpu or similar). > Same divide by zero. I'd be happy to run a debugging patch if you can come up with one. $ grep -E 'processor|core|sibling|physical id|apicid|cpuid' /proc/cpuinfo | sed 's/processor/\nprocessor/' processor : 0 physical id : 0 siblings : 4 core id : 0 cpu cores : 4 apicid : 4 initial apicid : 0 cpuid level : 5 processor : 1 physical id : 0 siblings : 4 core id : 1 cpu cores : 4 apicid : 5 initial apicid : 1 cpuid level : 5 processor : 2 physical id : 0 siblings : 4 core id : 2 cpu cores : 4 apicid : 6 initial apicid : 2 cpuid level : 5 processor : 3 physical id : 0 siblings : 4 core id : 3 cpu cores : 4 apicid : 7 initial apicid : 3 cpuid level : 5 processor : 4 physical id : 1 siblings : 4 core id : 0 cpu cores : 4 apicid : 8 initial apicid : 4 cpuid level : 5 processor : 5 physical id : 1 siblings : 4 core id : 1 cpu cores : 4 apicid : 9 initial apicid : 5 cpuid level : 5 processor : 6 physical id : 1 siblings : 4 core id : 2 cpu cores : 4 apicid : 10 initial apicid : 6 cpuid level : 5 processor : 7 physical id : 1 siblings : 4 core id : 3 cpu cores : 4 apicid : 11 initial apicid : 7 cpuid level : 5 processor : 8 physical id : 2 siblings : 4 core id : 0 cpu cores : 4 apicid : 12 initial apicid : 8 cpuid level : 5 processor : 9 physical id : 2 siblings : 4 core id : 1 cpu cores : 4 apicid : 13 initial apicid : 9 cpuid level : 5 processor : 10 physical id : 2 siblings : 4 core id : 2 cpu cores : 4 apicid : 14 initial apicid : 10 cpuid level : 5 processor : 11 physical id : 2 siblings : 4 core id : 3 cpu cores : 4 apicid : 15 initial apicid : 11 cpuid level : 5 processor : 12 physical id : 3 siblings : 4 core id : 0 cpu cores : 4 apicid : 16 initial apicid : 12 cpuid level : 5 processor : 13 physical id : 3 siblings : 4 core id : 1 cpu cores : 4 apicid : 17 initial apicid : 13 cpuid level : 5 processor : 14 physical id : 3 siblings : 4 core id : 2 cpu cores : 4 apicid : 18 initial apicid : 14 cpuid level : 5 processor : 15 physical id : 3 siblings : 4 core id : 3 cpu cores : 4 apicid : 19 initial apicid : 15 cpuid level : 5 -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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