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    SubjectRe: [PATCH -tip tracing/kprobes 1/6] kprobes/x86: Call BUG() when reentering probe into KPROBES_HIT_SS
    On Thu, Aug 27, 2009 at 01:22:58PM -0400, Masami Hiramatsu wrote:
    > Call BUG() when a probe have been hit on the way of kprobe processing path,
    > because that kind of probes are currently unrecoverable (recovering it will
    > cause an infinit loop and stack overflow).
    >
    > The original code seems to assume that it will be caused by an int3 which
    > another subsystem inserted on out-of-line singlestep buffer if the hitting
    > probe is same as current probe. However, in that case, int3-hitting-address
    > is on the out-of-line buffer and should be different from first (current)
    > int3 address.
    > Thus, I decided to remove the code.
    >
    > I also removes arch_disarm_kprobe() because it will involve other stuffs
    > in text_poke().
    >
    > Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
    > Cc: Frederic Weisbecker <fweisbec@gmail.com>
    > Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
    > Cc: Ingo Molnar <mingo@elte.hu>



    Applied the six patches to

    git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing.git
    tracing/kprobes

    Thanks!



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