activity monitor: Safari's shared memory size is 16.777.216 TB

Discussion in 'macOS' started by tkermit, Feb 27, 2009.

  1. tkermit macrumors 68040


    Feb 20, 2004
    Is this a known bug in OS X's activity monitor ? Seems to be some kind of number under- or overflow:

    The displayed shared memory size of my Safari process fluctuates between small numbers in the MB region and the obviously incorrect 2^24 TB (or 2^64 bytes = maximum addressable memory space of a byte-addressable 64-bit computer?).

    Any insight on/experience with this behavior ? Is this known? Not that I'm so worried about it, but I'm curious... :)

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  2. dantidote macrumors member

    Jun 25, 2007
    This is a common bug with activity monitor. Happens to me all the time with java. No worries.
  3. tkermit thread starter macrumors 68040


    Feb 20, 2004
    thanks a lot for your answer! Any idea why it happens (what the nature of the bug is) ?

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