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I have a 12.04 LTS server. 2 x XEON E5-2620v2 processors.

I run same program on each processor. after some days, the second processor seems to be in error status. ( I monitor them with turbostat and get this:)

pk cor CPU %c0 GHz TSC SMI %c1 %c3 %c6 %c7 CTMP PTMP %pc2 %pc3 %pc6 %pc7 Pkg_W Cor_W RAM_W PKG_% RAM_%

        74.67 2.40 2.10   0  21.98   0.96   2.39   0.00   65   65   0.00   0.00   0.00   0.00  72.49  47.30 11.54  0.00  0.00

0 0 0 91.49 2.40 2.10 0 8.51 0.00 0.00 0.00 58 60 0.00 0.00 0.00 0.00 37.73 25.11 5.89 0.00 0.00

0 0 12 95.78 2.40 2.10 0 4.22

0 1 1 87.64 2.40 2.10 0 11.54 0.18 0.64 0.00 57

0 1 13 87.34 2.40 2.10 0 11.84

0 2 2 87.32 2.40 2.10 0 12.03 0.15 0.50 0.00 55

0 2 14 86.75 2.40 2.10 0 12.60

0 3 3 88.71 2.40 2.10 0 10.73 0.05 0.50 0.00 57

0 3 15 88.04 2.40 2.10 0 11.40

0 4 4 87.63 2.40 2.10 0 11.46 0.18 0.73 0.00 59

0 4 16 88.28 2.40 2.10 0 10.81

0 5 5 88.14 2.40 2.10 0 11.17 0.13 0.56 0.00 52

0 5 17 87.58 2.40 2.10 0 11.74

1 0 6 100.00 2.40 2.10 0 0.00 0.00 0.00 0.00 62 65 0.00 0.00 0.00 0.00 34.76 22.19 5.64 0.00 0.00

1 0 18 100.00 2.40 2.10 0 0.00

1 1 7 99.99 2.40 2.10 0 0.01 0.00 0.00 0.00 65

1 1 19 100.00 2.40 2.10 0 0.00

1 2 8 99.99 2.40 2.10 0 0.01 0.00 0.00 0.00 62

1 2 20 2.51 2.40 2.10 0 97.49

1 3 9 100.00 2.40 2.10 0 0.00 0.00 0.00 0.00 58

1 3 21 1.48 2.40 2.10 0 98.52

1 4 10 10.45 2.40 2.10 0 53.01 10.83 25.71 0.00 56

1 4 22 11.40 2.40 2.10 0 52.06

1 5 11 1.54 2.40 2.10 0 98.46 0.00 0.00 0.00 59

1 5 23 99.99 2.40 2.10 0 0.01

As you can see the second processor, some CPU(6/18/7/19/8) is very busy but some others(20/21/11) nearly has nothing to do. And have a look at the first processor, It has an even CPU load.

what wrong with it? its a CPU hardware issue or a ubuntu issue ?

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