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I'm running badblocks -vws /dev/sda on a new 80GB laptop drive to make sure the disk is good. So far it's completed 2 passes and is working on it's third.

How many passes does it normally make?

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If the only flags you ran the command with were -v, -w and -s, then it should have exited after the first pass. Seeing as you're performing a with-write test, it should be safe to ^C out of anytime.

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badblocks -swv, at least the version I've got (from e2fsprogs 1.41.11) will run four passes with four different patterns before exiting. –  gbroiles Aug 8 '10 at 19:36

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