[Bug 832507] Re: console.log grows indefinitely

[Robie Basak]

I think this would need a libringbuffer as nova would need to read the
same file in get_console_output. When I first looked at this in
September, I could not find such a thing, or any accepted on-disk
format. The python code in my patch could be a good starting point, but
there a couple of things I think needed to be added. First, a magic to
identify the file; and second, some kind of mutex or locking mechanism
to cover the head and tail pointers and prevent slow readers from
reading past the join.

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Title:
  console.log grows indefinitely

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