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The spurious interrupts are happening, but appear to be averaging around 65/sec, sometimes spiking to above 100:
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The above test is with the same kernel (2.6.16.28-arcom1-2-viper #1 PREEMPT Wed Sep 16 17:04:19 MDT 2009) and CPU (viper 4) as was deployed on the tower.
Code Block |
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manitou:/dev/ttyS9 1 20 14 2012 06 28 23:13:12.975 06 28 23:13:26.005 1.00 0.938 1.043 19 19 manitou:/var/tmp/gps_pty0 1 30 29 2012 06 28 23:13:12.574 06 28 23:13:26.574 2.00 0.154 0.882 72 73 manitou:/dev/ttyS1 1 100 285 2012 06 28 23:13:12.624 06 28 23:13:26.820 20.01 0.046 0.054 12 12 manitou:/dev/ttyS5 1 120 15 2012 06 28 23:13:12.893 06 28 23:13:26.489 1.03 0.965 0.979 30 30 manitou:/dev/ttyS6 1 200 285 2012 06 28 23:13:12.654 06 28 23:13:26.852 20.00 0.044 0.058 12 12 manitou:/dev/ttyS7 1 210 285 2012 06 28 23:13:12.619 06 28 23:13:26.814 20.01 0.042 0.059 56 56 manitou:/dev/ttyS8 1 220 14 2012 06 28 23:13:13.516 06 28 23:13:26.256 1.02 0.974 0.986 29 29 manitou:/dev/ttyS10 1 300 285 2012 06 28 23:13:12.652 06 28 23:13:26.854 20.00 0.041 0.061 12 12 manitou:/dev/ttyS11 1 310 285 2012 06 28 23:13:12.621 06 28 23:13:26.825 19.99 0.045 0.056 49 49 manitou:/dev/ttyS12 1 320 15 2012 06 28 23:13:13.098 06 28 23:13:26.775 1.02 0.971 0.986 29 29 manitou:/dev/ttyS19 1 330 3 2012 06 28 23:13:10.785 06 28 23:13:20.787 0.20 5.000 5.002 56 56 manitou:/dev/ttyS13 1 400 285 2012 06 28 23:13:12.658 06 28 23:13:26.858 20.00 0.046 0.054 12 12 manitou:/dev/ttyS14 1 410 286 2012 06 28 23:13:12.593 06 28 23:13:26.845 20.00 0.047 0.052 49 49 manitou:/dev/ttyS15 1 420 14 2012 06 28 23:13:13.374 06 28 23:13:26.024 1.03 0.969 0.980 30 30 manitou:/dev/ttyS20 1 500 286 2012 06 28 23:13:12.622 06 28 23:13:26.869 20.00 0.047 0.053 12 12 manitou:/dev/ttyS17 1 510 285 2012 06 28 23:13:12.619 06 28 23:13:26.824 19.99 0.042 0.058 49 49 manitou:/dev/ttyS18 1 520 14 2012 06 28 23:13:13.284 06 28 23:13:25.990 1.02 0.970 0.984 30 30 |