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So that it doesn't get in the way of successive rsyncs, I moved it to isfs6:/media/usbdisk/projects/PCAPS/bad
data_stats reports many bad samples, with incorrect types, ids, length, times, etc.
I was able to clear our most of the junk with:
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We'll see if we have any other problems on the usb flash drive at wslope6. I plan to leave that file where it is in case it is covering a bad address on the flash, to avoid writing to that address again.
The glitch doesn't seem to have anything to do with a sudden power down, wslope6 has been up for 23 days.