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    SubjectRe: [PATCH v8 3.2.0-rc5 1/9] uprobes: Install and remove breakpoints.
    * Peter Zijlstra <peterz@infradead.org> [2012-01-06 11:57:41]:

    > On Fri, 2012-01-06 at 11:44 +0530, Srikar Dronamraju wrote:
    > > - consumers for the uprobe is NULL, so mmap_uprobe will not
    > > insert new breakpoints which correspond to this uprobe until
    > > or unless another consumer gets added for the same probe.
    > >
    > > - If a new consumer gets added for this probe, we reuse the
    > > uprobe struct.
    >
    > Ok, and when we install a new 'first' consumer we'll again try and
    > install all breakpoints ignoring those that were already there?
    >

    Yes, We install breakpoints as if its the first time a probe has been
    requested to be installed, including setting the UPROBES_RUN_HANDLER
    flag.

    We do check if existing breakpoints are around during the actual
    insertion, in which case install_breakpoint() will return -EEXIST.
    However register assumes EEXIST to be non-fatal, and continues as if its
    successful.

    --
    Thanks and Regards
    Srikar



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